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  <xsd:element abstract="true" id="apt_ManufacturingBuildingProductsMember" name="ManufacturingBuildingProductsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_ManufacturingCoatedMaterialAndSewingProprietaryDisposableProtectiveApparelMember" name="ManufacturingCoatedMaterialAndSewingProprietaryDisposableProtectiveApparelMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_ManufacturingOfBuildingProductsMember" name="ManufacturingOfBuildingProductsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_MapleIndustriesAndAssociatesMember" name="MapleIndustriesAndAssociatesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_MarketableSecuritiesMember" name="MarketableSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="apt_NumberOfStoresOwned" name="NumberOfStoresOwned" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element id="apt_NumberOfStoresRented" name="NumberOfStoresRented" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element id="apt_OperatingLeaseExpenseNetOfAccretion" name="OperatingLeaseExpenseNetOfAccretion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="apt_OperatingLeaseRightofuseAssetNoncurrent" name="OperatingLeaseRightofuseAssetNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="apt_PatentsAndTrademarksMember" name="PatentsAndTrademarksMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="apt_ProceedsFromPaymentsForStockOptionsExercised" name="ProceedsFromPaymentsForStockOptionsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="apt_PropertyPlantAndEquipmentUsefulLivesTableTextBlock" name="PropertyPlantAndEquipmentUsefulLivesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="apt_RevenueFromContractWithCustomerShippingAndHandlingPolicyPolicyTextBlock" name="RevenueFromContractWithCustomerShippingAndHandlingPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_SewingProprietaryDisposableProtectiveApparelMember" name="SewingProprietaryDisposableProtectiveApparelMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="apt_StockOptionsFairValueBasedOnBlackScholesMerton" name="StockOptionsFairValueBasedOnBlackScholesMerton" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="apt_TemporaryDifferencesAbstract" name="TemporaryDifferencesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_The2004PlanMember" name="The2004PlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="apt_TotalConsolidatedAssets" name="TotalConsolidatedAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-10-shareholders-equity-information-about-stock-options-details" name="statement-statement-note-10-shareholders-equity-information-about-stock-options-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-10-shareholders-equity-stock-option-activity-details" name="statement-statement-note-10-shareholders-equity-stock-option-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-10-shareholders-equity-stock-option-valuation-assumptions-details" name="statement-statement-note-10-shareholders-equity-stock-option-valuation-assumptions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-10-shareholders-equity-tables" name="statement-statement-note-10-shareholders-equity-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-11-income-taxes-deferred-income-tax-assets-details" name="statement-statement-note-11-income-taxes-deferred-income-tax-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-11-income-taxes-income-tax-reconciliation-details" name="statement-statement-note-11-income-taxes-income-tax-reconciliation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-11-income-taxes-provision-for-income-taxes-details" name="statement-statement-note-11-income-taxes-provision-for-income-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-11-income-taxes-tables" name="statement-statement-note-11-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-12-leases-future-minimum-lease-payment-details" name="statement-statement-note-12-leases-future-minimum-lease-payment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-12-leases-tables" name="statement-statement-note-12-leases-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-15-activity-of-business-segments-consolidated-net-property-and-equipment-goodwill-and-intangible-assets-details" name="statement-statement-note-15-activity-of-business-segments-consolidated-net-property-and-equipment-goodwill-and-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-15-activity-of-business-segments-consolidated-net-sales-and-longlived-asset-information-by-geographic-area-details" name="statement-statement-note-15-activity-of-business-segments-consolidated-net-sales-and-longlived-asset-information-by-geographic-area-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-15-activity-of-business-segments-consolidated-net-sales-details" name="statement-statement-note-15-activity-of-business-segments-consolidated-net-sales-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-15-activity-of-business-segments-reconciliation-of-total-segment-income-to-total-consolidated-net-income-details" name="statement-statement-note-15-activity-of-business-segments-reconciliation-of-total-segment-income-to-total-consolidated-net-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-15-activity-of-business-segments-tables" name="statement-statement-note-15-activity-of-business-segments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-16-concentration-of-risk-customer-concentration-details" name="statement-statement-note-16-concentration-of-risk-customer-concentration-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-16-concentration-of-risk-tables" name="statement-statement-note-16-concentration-of-risk-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-2-summary-of-significant-accounting-policies-fair-value-of-financial-assets-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-fair-value-of-financial-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-2-summary-of-significant-accounting-policies-property-and-equipment-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-property-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-net-income-and-number-of-shares-used-in-computations-of-basic-and-diluted-eps-details" name="statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-net-income-and-number-of-shares-used-in-computations-of-basic-and-diluted-eps-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-2-summary-of-significant-accounting-policies-tables" name="statement-statement-note-2-summary-of-significant-accounting-policies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-4-inventories-inventories-details" name="statement-statement-note-4-inventories-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-4-inventories-tables" name="statement-statement-note-4-inventories-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-5-property-and-equipment-property-and-equipment-details" name="statement-statement-note-5-property-and-equipment-property-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-5-property-and-equipment-tables" name="statement-statement-note-5-property-and-equipment-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-6-goodwill-and-intangible-assets-definitelived-intangible-assets-details" name="statement-statement-note-6-goodwill-and-intangible-assets-definitelived-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-6-goodwill-and-intangible-assets-estimated-future-amortization-expense-related-to-definitelived-intangible-assets-details" name="statement-statement-note-6-goodwill-and-intangible-assets-estimated-future-amortization-expense-related-to-definitelived-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-6-goodwill-and-intangible-assets-tables" name="statement-statement-note-6-goodwill-and-intangible-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-8-accrued-liabilities-accrued-liabilities-details" name="statement-statement-note-8-accrued-liabilities-accrued-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-note-8-accrued-liabilities-tables" name="statement-statement-note-8-accrued-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="apt_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
