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      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
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            <StateAbbreviationCd>MA</StateAbbreviationCd>
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          </USAddress>
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        <ServicesDesc>Management service</ServicesDesc>
        <CompensationAmt>325926</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
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        <ContractorAddress>
          <USAddress>
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            <StateAbbreviationCd>NM</StateAbbreviationCd>
            <ZIPCd>87102</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Annual conf. venue</ServicesDesc>
        <CompensationAmt>144678</CompensationAmt>
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      <TotalContributionsAmt>48050</TotalContributionsAmt>
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        <ExclusionAmt>99598</ExclusionAmt>
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        <RelatedOrExemptFuncIncomeAmt>88885</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
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        <RelatedOrExemptFuncIncomeAmt>84040</RelatedOrExemptFuncIncomeAmt>
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        <RelatedOrExemptFuncIncomeAmt>32936</RelatedOrExemptFuncIncomeAmt>
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      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
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      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>699127</BeginningYearBalanceAmt>
        <ContributionsAmt>30700</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>80641</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>21346</GrantsOrScholarshipsAmt>
        <EndYearBalanceAmt>789122</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>588175</BeginningYearBalanceAmt>
        <ContributionsAmt>63373</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>65966</InvestmentEarningsOrLossesAmt>
        <GrantsOrScholarshipsAmt>18387</GrantsOrScholarshipsAmt>
        <EndYearBalanceAmt>699127</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>0.32110</BoardDesignatedBalanceEOYPct>
      <PrmnntEndowmentBalanceEOYPct>0.67890</PrmnntEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <LandGrp />
      <BuildingsGrp />
      <LeaseholdImprovementsGrp />
      <EquipmentGrp />
      <OtherLandBuildingsGrp />
      <FederalIncomeTaxLiabilityAmt>0</FederalIncomeTaxLiabilityAmt>
      <TotalLiabilityAmt>0</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1032493</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>212420</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>212420</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>820073</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>10193</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>10193</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>830266</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>806498</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>806498</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>10193</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>10193</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>816691</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The Association is exempt from federal income tax under Section 501(c)(3) of the Internal Revenue Code. However, income from certain activities not directly related to the Association's tax-exempt purpose is subject to taxation as unrelated business income. In addition, the Association qualifies for the charitable contribution deduction under Section 170(b)(1)(A) and has been classified as an organization other than a private foundation under Section 509(a)(2). GAAP requires entities to evaluate, measure, recognize and disclose any uncertain income tax positions taken on their tax returns. GAAP prescribes a minimum threshold that a tax position is required to meet in order to be recognized in the financial statements. The Association believes that it had no uncertain tax positions as defined in GAAP.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="IRS990ScheduleF">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>HONORARIUM AND AWARDS</TypeOfAssistanceTxt>
        <RegionTxt>Europe (Including Iceland and Greenland)</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2100</CashGrantAmt>
        <MannerOfCashDisbursementTxt>check</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANT</TypeOfAssistanceTxt>
        <RegionTxt>South America</RegionTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>3500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>check</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>TRAVEL GRANT</TypeOfAssistanceTxt>
        <RegionTxt>North America</RegionTxt>
        <RecipientCnt>8</RecipientCnt>
        <CashGrantAmt>4000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>check</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="IRS990ScheduleI">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Travel Grants</GrantTypeTxt>
        <RecipientCnt>50</RecipientCnt>
        <CashGrantAmt>26200</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Honorariums</GrantTypeTxt>
        <RecipientCnt>16</RecipientCnt>
        <CashGrantAmt>5900</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Named Awards</GrantTypeTxt>
        <RecipientCnt>14</RecipientCnt>
        <CashGrantAmt>12800</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>POSTER AWARDS</GrantTypeTxt>
        <RecipientCnt>25</RecipientCnt>
        <CashGrantAmt>4500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I Description of Procedure for Monitoring Use of Funds</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION VERIFIES WITH EACH AWARDEE THAT THE AWARD RECEIVED IS USED FOR TRAVEL TO THE ANNUAL CONFERENCE OR FOR RESEARCH THROUGH ANNUAL DISCUSSION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I, LINE 1, ORGANIZATION MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>TO PROVIDE SCIENTIFIC FORUMS AND PUBLICATIONS IN ALL ASPECTS OF AEROSOL RESEARCH, TO ENCOMPASS THE DIVERSE TECHNICAL DISCIPLINES UTILIZING AEROSOL TECHNOLOGY, AND TO ENGENDER AEROSOL RESEARCH AND INNOVATION OF THE HIGHEST QUALITY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>DELEGATION OF MANAGEMENT DUTIES TO MANAGEMENT COMPANY THE ASSOCIATION RECEIVES VARIOUS MANAGEMENT SERVICES INCLUDING THOSE RELATED TO GENERAL ADMINISTRATION, MEMBERSHIP, FINANCIAL SERVICES, MEETINGS, PUBLICATIONS AND OTHER PROGRAMS FROM VIRTUAL, INC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF THE ORGANIZATION THE ASSOCIATION HAS TWO CLASSES OF VOTING MEMBERS - FULL MEMBERSHIP AND RETIRED MEMBERSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>ELECTION OF MEMBERS OF GOVERNING BODY ALL FULL AND RETIRED MEMBERS ARE ENTITLED TO VOTING PRIVILEGES AND MAY HOLD OFFICE AND SERVE ON THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING BODY REVIEW OF FORM 990 PRIOR TO ITS FILING WITH THE IRS, A COPY OF THE FINAL FORM 990 IS PROVIDED TO THE BOARD TREASURER FOR REVIEW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>MONITORING AND ENFORCEMENT OF THE CONFLICT OF INTEREST POLICY THE BOARD OF DIRECTORS AND MANAGEMENT ANNUALLY SIGN A CONFLICT OF INTEREST STATEMENT THAT REQUIRES ANY INDIVIDUAL TO DISCLOSE ANY POTENTIAL CONFLICTS. ALL CONFLICTS ARE DISCUSSED WITH THE BOARD OF DIRECTORS AND ADDRESSED, AS NEEDED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>PUBLIC AVAILABILITY OF OTHER DOCUMENTS COPIES OF THE ASSOCIATION'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, FINANCIAL STATEMENTS AND FORM 990 ARE PROVIDED UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>