﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2024v5.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-12-08T10:13:27-06:00</ReturnTs>
    <TaxPeriodEndDt>2025-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>251622758</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>MAHER DUESSEL CPA'S</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>503 MARTINDALE STREET SUITE 600</AddressLine1Txt>
        <CityNm>PITTSBURGH</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>15212</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>256048968</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>SPECTROSCOPY SOCIETY OF PITTSBURGH</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>SPEC</BusinessNameControlTxt>
      <PhoneNum>4128253220</PhoneNum>
      <USAddress>
        <AddressLine1Txt>2150 ELDO ROAD</AddressLine1Txt>
        <CityNm>MONROEVILLE</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>15146</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>BRIAN STROHMEIER</PersonNm>
      <PersonTitleTxt>CHAIR</PersonTitleTxt>
      <PhoneNum>4128253220</PhoneNum>
      <SignatureDt>2025-12-08</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>AMY LEWIS</PreparerPersonNm>
      <PTIN>P01360302</PTIN>
      <PhoneNum>4124715500</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>BRIAN STROHMEIER</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>2150 ELDO ROAD</AddressLine1Txt>
        <CityNm>MONROEVILLE</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>15146</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>560716</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.SSP-PGH.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1950</FormationYr>
      <LegalDomicileStateCd>PA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>TO PROMOTE THE INCREASE IN KNOWLEDGE OF SPECTROSCOPY, DISSEMINATION OF SUCH KNOWLEDGE AND THE COOPERATION OF WORKERS IN THE FIELD OF SPECTROSCOPY.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>5</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>5</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalVolunteersCnt>185</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>2400</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>2060</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>0</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>378250</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>558476</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>60</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>180</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>380710</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>560716</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>199301</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>205902</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>0</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>146108</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>129852</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>345409</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>335754</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>35301</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>224962</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>9996505</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>10958776</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>0</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>9996505</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>10958776</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>THE SPECTROSCOPY SOCIETY OF PITTSBURGH IS ORGANIZAED TO PROMOTE THE INCREASE IN KNOWLEDGE OF SPECTROSCOPY, TO PROMOTE THE DISSEMINATION OF SUCH KNOWLEDGE, AND TO PROMOTE THE COOPERATION OF WORKERS IN THE FIELD OF SPECTROSCOPY.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>263813</ExpenseAmt>
      <GrantAmt>205902</GrantAmt>
      <Desc>THE SOCIETY PROVIDES GRANTS TO UNIVERSITIES, HIGH SCHOOLS, AND NOTFORPROFIT ORGANIZATIONS FOR EDUCATION AND ADVANCEMENT IN THE FIELD OF APPLIED SPECTROSCOPY. THE SOCIETY FUNDED NUMEROUS TEACHERS WITH EQUIPMENT GRANTS AND EQUIPMENT, FUNDED PROJECTS AT CARNEGIE SCIENCE CENTER, AND PROVIDED GRANTS TO LOCAL ELEMENTARY AND MIDDLE SCHOOLS TO SUPPORT DEVELOPMENT OF ELEMENTARY SCIENCE OLYMPIAD PROGRAMS.</Desc>
      <TotalProgramServiceExpensesAmt>263813</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>0</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd>0</DonorAdvisedFundInd>
      <ConservationEasementsInd>0</ConservationEasementsInd>
      <CollectionsOfArtInd>0</CollectionsOfArtInd>
      <CreditCounselingInd>0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd>0</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd>0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd>0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd>0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd>0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd>0</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd>0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd>0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">1</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc1041900001">1</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd referenceDocumentId="RetDoc1043400001">0</DisregardedEntityInd>
      <RelatedEntityInd referenceDocumentId="RetDoc1043400001">1</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd referenceDocumentId="RetDoc1043400001">0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd referenceDocumentId="RetDoc1043400001">0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>5</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>5</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>1</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>0</ConflictOfInterestPolicyInd>
      <WhistleblowerPolicyInd>0</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>0</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>0</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>PA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>LINDA GRESS</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>4128253220</PhoneNum>
        <USAddress>
          <AddressLine1Txt>2150 ELDO ROAD</AddressLine1Txt>
          <CityNm>MONROEVILLE</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15146</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>MEGAN MELUCCI</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>2.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CB WANG</PersonNm>
        <TitleTxt>CHAIR-ELECT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>2.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JORDAN BOOTHE</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>2.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>EDWARD ZOVINKA</PersonNm>
        <TitleTxt>IMMEDIATE FORMER CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>2.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>BRIAN STROHMEIER</PersonNm>
        <TitleTxt>CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>2.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>2060</MembershipDuesAmt>
      <TotalContributionsAmt>2060</TotalContributionsAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>558476</TotalRevenueColumnAmt>
        <ExclusionAmt>558476</ExclusionAmt>
      </InvestmentIncomeGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>180</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>180</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>180</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>560716</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>180</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>558476</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>195402</TotalAmt>
        <ProgramServicesAmt>195402</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>10500</TotalAmt>
        <ProgramServicesAmt>10500</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>56588</TotalAmt>
        <ManagementAndGeneralAmt>56588</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <AdvertisingGrp>
        <TotalAmt>2425</TotalAmt>
        <ProgramServicesAmt>2425</ProgramServicesAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>349</TotalAmt>
        <ManagementAndGeneralAmt>349</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>70490</TotalAmt>
        <ProgramServicesAmt>55486</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15004</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>335754</TotalAmt>
        <ProgramServicesAmt>263813</ProgramServicesAmt>
        <ManagementAndGeneralAmt>71941</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>9097</BOYAmt>
        <EOYAmt>34669</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>354279</BOYAmt>
        <EOYAmt>569150</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>9630629</BOYAmt>
        <EOYAmt>10352457</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>2500</BOYAmt>
        <EOYAmt>2500</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <TotalAssetsGrp>
        <BOYAmt>9996505</BOYAmt>
        <EOYAmt>10958776</EOYAmt>
      </TotalAssetsGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>9916515</BOYAmt>
        <EOYAmt>10876364</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>79990</BOYAmt>
        <EOYAmt>82412</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>9996505</BOYAmt>
        <EOYAmt>10958776</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>9996505</BOYAmt>
        <EOYAmt>10958776</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>224962</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>737309</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingOtherInd methodOfAccountingOtherDesc="Modified Cash">X</MethodOfAccountingOtherInd>
      <AccountantCompileOrReviewInd>1</AccountantCompileOrReviewInd>
      <AcctCompileOrReviewBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </AcctCompileOrReviewBasisGrp>
      <FSAuditedInd>0</FSAuditedInd>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>7682336</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>431618</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3224</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2400</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2060</CurrentTaxYearAmt>
        <TotalAmt>8121638</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>7682336</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>431618</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3224</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2400</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2060</CurrentTaxYearAmt>
        <TotalAmt>8121638</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>8121638</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>249778</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>482792</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>345127</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>378250</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>558476</CurrentTaxYearAmt>
        <TotalAmt>2014423</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus1YearAmt>60</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>180</CurrentTaxYearAmt>
        <TotalAmt>240</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>10136301</TotalSupportAmt>
      <PublicSupportCY170Pct>0.80120</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.85360</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>FRANKLIN PIERCE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>40 UNIVERSITY DRIVE</AddressLine1Txt>
          <CityNm>RINDGE</CityNm>
          <StateAbbreviationCd>NH</StateAbbreviationCd>
          <ZIPCd>03461</ZIPCd>
        </USAddress>
        <RecipientEIN>020263136</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>7198</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>PCMNCG 2025 GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>LANDMARK COLLEGE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>19 RIVER ROAD SOUTH</AddressLine1Txt>
          <CityNm>PUTNEY</CityNm>
          <StateAbbreviationCd>VT</StateAbbreviationCd>
          <ZIPCd>05346</ZIPCd>
        </USAddress>
        <RecipientEIN>222586208</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>8190</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>PCMNCG 2025 GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MERCYHURST UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>501 EAST 38TH STREET</AddressLine1Txt>
          <CityNm>ERIE</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>16546</ZIPCd>
        </USAddress>
        <RecipientEIN>250965430</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>10000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>PCMNCG 2025 GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF ST JOSEPH</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1678 ASYLUM AVENUE</AddressLine1Txt>
          <CityNm>WEST HARTFORD</CityNm>
          <StateAbbreviationCd>CT</StateAbbreviationCd>
          <ZIPCd>06117</ZIPCd>
        </USAddress>
        <RecipientEIN>060646829</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>9500</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>PCMNCG 2025 GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CHATHAM UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>107 WOODLAND ROAD</AddressLine1Txt>
          <CityNm>PITTSBURGH</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15232</ZIPCd>
        </USAddress>
        <RecipientEIN>250717890</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>9490</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>PCMNCG 2025 GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CARNEGIE SCIENCE CENTER</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>4400 FORBES AVENUE</AddressLine1Txt>
          <CityNm>PITTSBURGH</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15213</ZIPCd>
        </USAddress>
        <RecipientEIN>250965280</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>9500</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>GRANTS 2025</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>BROWN UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>CONTROLLERS OFFICE - BOX J 324</AddressLine1Txt>
          <AddressLine2Txt>BROOK STREET</AddressLine2Txt>
          <CityNm>PROVIDENCE</CityNm>
          <StateAbbreviationCd>RI</StateAbbreviationCd>
          <ZIPCd>02912</ZIPCd>
        </USAddress>
        <RecipientEIN>050258809</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>40000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>STARTER GRANT</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>29</Total501c3OrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>RALPH ADAMS AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2500</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>PITTSBURGH SPECTROSCOPY AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>K-8 SCIENCE EDUCATOR AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>EDWIN HODGE MEMORIAL SCHOLARSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>J. KEVIN SCANLON AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>500</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>2025 KEIVIN BURNS AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SAS AWARDEE</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>500</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>PSTA GRANT</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <ValuationMethodUsedDesc>N/A</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>N/A</NonCashAssistanceDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GRANTS THAT ARE GIVEN ARE USED FOR LABRATORY EQUIPMENT. THE RECIPIENT PICKS THE EQUIPMENT AND THE EQUIPMENT IS ORDERED BY THE SCIENCE WEEK CHAIRMAN. THIS ENSURES THE SOCIETY RECIEVES FAIR PRICING AND THAT THE APPROPRIATE EQUIPMENT IS ORDERED.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ANY PERSON QUALIFIED BY EDUCATION, OCCUPATION, EXPERIENCE, OR BACKGROUND IN SCIENCE, TO FURTHER THE PURPOSES OF THE SOCIETY SHALL BE ELIGIBLE FOR ACTIVE MEMBERSHIP. THERE SHALL BE TWO TYPES OF MEMBERSHIPS: ACTIVE AND STUDENT AFFILIATE. APPLICANTS FOR ACTIVE MEMBERSHIP IN THE SOCIETY MUST BE SPONSORED BY AN ACTIVE MEMBER, APPROVED BY THE EXECUTIVE COUNCIL, AND SHALL BECOME ACTIVE UPON PAYMENT OF DUES. ALL MEMBERS OF THE SSP MUST RESIDE IN AREAS WHICH INCLUDE: ALL COUNTIES IN PENNSYLVANIA, OHIO, WEST VIRGINIA, MARYLAND, VIRGINIA, NEW JERSEY, NEW YORK, AND DELAWARE. MEMBERSHIP OUTSIDE OF THE GEOGRAPHICAL REGION MAY BE DETERMINED ON A CASE BY CASE BASIS. SSP MEMBERS WHO MOVE OUTSIDE OF THE GEOGRAPHICAL MEMBERSHIP AREA MAY RETAIN THEIR ACTIVE MEMBER STATUS BY PAYING ANNUAL DUES AND UPDATING THEIR CONTACT INFORMATION ANNUALLY. DUES ARE WAIVED FOR EMERITUS AND HONORARY MEMBERS, WHO HAVE ACHIEVED SUCH STATUS PRIOR TO 2021. THESE MEMBERSHIP CATEGORIES ARE "GRANDFATHERED". THIS STATUS WILL NO LONGER BE GRANTED TO EXISTING OR FUTURE MEMBERS. A STUDENT AFFILIATE IS ANY STUDENT ENROLLED AS AN UNDERGRADUATE SCIENCE MAJOR, THAT INCLUDES CHEMISTRY COURSES IN ANY COLLEGE OR UNIVERSITY. STUDENTS SHALL REMAIN STUDENT AFFILIATE MEMBERS FOR AS LONG AS THEY REMAIN IN AN UNDERGRADUATE STUDY PROGRAM, AFTER WHICH THEY MAY APPLY FOR REGULAR MEMBERSHIP. HIGH SCHOOL STUDENTS MAY BE INVITED TO APPLY FOR STUDENT AFFILIATE MEMBERSHIP, PROVIDED THAT THEY ARE CURRENTLY JUNIORS OR SENIORS IN HIGH SCHOOL AND HAVE EXCEPTIONAL CAPABILITIES AS DEMONSTRATED BY ONE OR MORE OF THE FOLLOWING: SCHOLASTIC ACHIEVEMENT GPA (&gt;3.4/4.0), REGIONAL OR NATIONAL SCIENCE COMPETITION PARTICIPATION (PJAS, PRSEF, ISEF) OR EDUCATIONAL OUTREACH SERVICE. ATTENDANCE TO MONTHLY MEETINGS BY HIGH SCHOOL STUDENTS MAY ONLY BE VIRTUAL. ACTIVE MEMBERSHIPS WILL BE VOTING MEMBERSHIPS. IT IS THE RESPONSIBILITY OF THE SECRETARY TO MAINTAIN A LISTING OF EMERITUS AND HONORARY MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>SPECTROSCOPY SOCIETY OF PITTSBURGH MEMBERS VOTE FOR OFFICERS ON AN ANNUAL BASIS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>SPECTROSCOPY SOCIETY OF PITTSBURGH MEMBERS VOTE FOR CHANGES IN THE BYLAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S FINANCE TEAM REVIEWS THE FORM 990. UPON THEIR REVIEW, A COPY OF THE FORM IS PROVIDED TO THE BOARD OF DIRECTORS FOR THEIR REVIEW PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SPECTROSCOPY SOCIETY OF PITTSBURGH IS A VOLUNTEER SOCIETY. OFFICERS ARE NOT COMPENSATED IN ANY MANNER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 1, OTHER ACCOUNTING METHOD:</FormAndLineReferenceDesc>
        <ExplanationTxt>MODIFIED CASH</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE PGH CONF ON ANALYTICAL CHEMISTRY &amp; APPLIED SPECTROSCOPY</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>300 PENN CENTER BLVD</AddressLine1Txt>
          <CityNm>PITTSBURGH</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15235</ZIPCd>
        </USAddress>
        <EIN>251141360</EIN>
        <PrimaryActivitiesTxt>SCIENTIFIC CONFERENCE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>PA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE SOCIETY FOR ANALYTICAL CHEMISTS</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>300 PENN CENTER BLVD</AddressLine1Txt>
          <CityNm>PITTSBURGH</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15235</ZIPCd>
        </USAddress>
        <EIN>256072976</EIN>
        <PrimaryActivitiesTxt>EDUCATION</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>PA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>PF</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>