71.080.15 (Aromatic hydrocarbons) 标准查询与下载

ASTM D5194-96(2000) 液体芳香烃中痕量氯化物的标准试验方法

1.1 This test method covers the determination of total chloride (organic and inorganic) in liquid aromatic hydrocarbons and cyclohexane. 1.2 The test method is applicable to samples with chloride concentrations of 1 to 25 mg/kg. 1.3 Bromides and iodides, if present, will be calculated as chlorides. 1.4 Materials, such as styrene, that are polymerized by sodium biphenyl reagent cannot be analyzed by this test method. 1.5 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 7.

Standard Test Method for Trace Chloride in Liquid Aromatic Hydrocarbons

ASTM D3193-96(2003) 乙苯标准规范

1.1 This specification covers ethylbenzene. 1.2 Consult current OSHA regulations, supplier's Material Safety Data Sheets for all materials, and local regulations used in this specification. 1.3 The following applies to all specified limits in this specification for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

Standard Specification for Ethylbenzene

ASTM D3160-96a 异丙基苯或AMS(α-甲基苯乙烯)的酚含量的标准试验方法

1.1 This test method covers the determination of phenol in the range from 0.25 to 50 mg/kg in refined cumene (isopropylbenzene) or AMS ([alpha]-methylstyrene). 1.2 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.

Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)

ASTM D2119-96 苯乙烯单体中乙醛含量的标准试验方法

1.1 This test method covers the determination of aldehydes in styrene monomer. Aldehydes are calculated and reported as benzaldehyde. 1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.> For specific hazard statements, see Section 7.

Standard Test Method for Aldehydes in Styrene Monomer

ASTM D2340-96 苯乙烯单体中过氧化物的标准试验方法

1.1 This test method covers the determination of the peroxide content of styrene monomer. 1.2 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.

Standard Test Method for Peroxides in Styrene Monomer

ASTM D1555-95(2000) 工业芳香烃和环己烷的体积和重量计算标准测试方法[公制]

1.1 These tables are for use in calculating the weight and volume of benzene, toluene, mixed xylenes, styrene, orthoxylene, meta-xylene, para-xylene, cumene, ethylbenzene, 300 to 350176F aromatic hydrocarbons, 350176 to 400176F aromatic hydrocarbons and cyclohexane. A method is given for calculating the volume at 60176F from an observed volume at 176F. Table 1 lists the density in pounds per gallon at 60176F for high purity chemicals. 1.2 A procedure for the calculation of density in pounds per gallon at 60176F of materials of lower purity is provided. Note 1-The purchaser and the seller should agree on a reasonable policy in regard to rounding of final numbers in all computations. Rounding the final weight or volume to not more than five significant digits is, in most cases, consistent with the experimental reliability of the data. Note 2-An alternative method is Test Method D4052. 1.3 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Calculation of Volume and Weight of Industrial Aromatic Hydrocarbons

ASTM D5135-95 用毛细管气相色谱法分析苯乙烯的标准试验方法

1.1 This test method covers the determination of the impurities in, and the purity of styrene by gas chromatography. It is applicable to styrene in the range from 99 to 100% purity and to impurities at concentrations of 0.001 to 1.00%. This test method may be used for lower purity but not all the impurities may be readily identified and the use of an internal standard becomes more difficult. 1.2 The following applies to all specified limits in this standard: for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 This standard does not purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 6.

Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography