ASTM D841-17a Standard Specification for Nitration Grade Toluene.pdf
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1、Designation: D841 17aStandard Specification forNitration Grade Toluene1This standard is issued under the fixed designation D841; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses ind
2、icates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers nitration grade toluene.1.2 The following applies to all specified limits in thisspecification: for purposes of determining conformanc
3、e withthis specification, an observed value or a calculated value shallbe rounded off “to the nearest unit” in the last right-hand digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E29.1.3 The values stated in SI units are to be regarded asstandar
4、d. No other units of measurement are included in thisstandard.1.4 Consult current OSHA regulations, suppliers SafetyData Sheets, and local regulations for all materials used in thisspecification.1.5 This international standard was developed in accor-dance with internationally recognized principles o
5、n standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D848 Test Method for Acid Wash Color of
6、 Industrial Aro-matic HydrocarbonsD849 Test Method for Copper Strip Corrosion by IndustrialAromatic HydrocarbonsD3437 Practice for Sampling and Handling Liquid CyclicProductsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD7504 Test Method for Trace Impurities in MonocyclicAromati
7、c Hydrocarbons by Gas Chromatography andEffective Carbon NumberE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2680 Test Method for Appearance of Clear, TransparentLiquids (Visual Inspection Procedure)2.2 Federal Specification:3PPP-C-2020 Packaging
8、of Chemicals, Liquid, Dry, and Paste2.3 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120043. Properties3.1 Nitration Grade Toluene shall conform to the followingrequirements:Property SpecificationASTM TestMethodAPurity, min. wt% 98.8 D7504Nonaromatic hydrocarbons, max, volume
9、 %(wt %)1.5 (1.2) D7504Acid wash color, max pass with 2 D848Copper corrosion pass (1A or 1B) D849Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, Pt/Co scale, max 20 D5386AIf more than one method is listed, the producer and user should agree on thereferee method.3.
10、2 See Section 6 for non-mandatory supplementary re-quirements.4. Sampling4.1 The material shall be sampled in accordance withPractice D3437.5. Packaging and Labeling for U.S. GovernmentProcurements5.1 United States Government procurements shall be pack-aged and labeled in accordance with the applica
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- ASTM D841 17 Standard Specification for Nitration Grade Toluene
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