71.080.15 (Aromatic hydrocarbons) 标准查询与下载

ASTM D1555M-00 工业香烃类计量的体积和重量计算的标准测试方法

1.1 The tables in this test method cover calculating the weight and volume of benzene, toluene, mixed xylenes, styrene, o-xylene, m-xylene, p-xylene, cumene, ethylbenzene, 148.9 to 176.7176C (300 to 350176F) aromatic hydrocarbons, 176.7 to 204.4176C (350 to 400176F) aromatic hydrocarbons, and cyclohexane. A procedure is given for calculating the volume at 15.0176C from an observed volume at t176C. Table 1 lists the density in kilograms per litre at 15.0176C for high purity chemicals. 1.2 A procedure for the calculation of density in kilograms per litre at 15.0176C 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 test method is Test Method D 4052. 1.3 This test method is the SI companion of Test Method D 1555. 1.4 The following applies to all specified limits in this test method: for purpose 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 on expressing the specification limit, in accordance with the rounding-off method of Practice E 29. 1.5 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 [Metric]

ASTM D1685-00 用分光光度计测定苯中微量噻吩的标准试验方法

1.1 This test method covers the determination of thiophene in benzene in which the thiophene concentration is between 0.1 and 250 mg/kg. 1.2 Contaminating materials that are darkened by sulfuric acid interfere and must be compensated for by a sample blank determination. Neither carbon disulfide in concentrations as high as 100 mg/kg nor water as high as the level of saturation will interfere. 1.3 Contaminating materials may occasionally cause the color development in this test method to be time dependent and may also contribute to spectral interferences at 589 nm. Consequently, test results indicating substantial thiophene, that cannot be verified by total sulfur analysis, should be considered suspect. 1.4 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 round off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the round-off method of Practice E29. 1.5 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 Note 1, 7.1, and 8.1.

Standard Test Method for Traces of Thiophene in Benzene by Spectrophotometry

ASTM D2360-00 气相色谱法测定单环芳烃中痕量杂质的标准试验方法

1.1 This test method covers the determination of the total nonaromatic hydrocarbons, and trace monocyclic aromatic hydrocarbons in the purity of toluene and mixed xylenes by gas chromatography. 1.2 Nonaromatic aliphatic hydrocarbons containing 1 through 10 carbon atoms (methane through decanes) can be detected by this test method at concentrations ranging from 10 mg/kg to 2.500 weight %. 1.2.1 A small amount of benzene in mixed xylenes may not be distinguished from the nonaromatics and the concentrations are determined as a composite. 1.3 Monocyclic aromatic hydrocarbon impurities containing 6 through 9 carbon atoms (benzene through C 9 aromatics) can be detected by this test method at individual concentrations ranging from 10 mg/kg to 1.000 weight %. 1.4 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. 1.5 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 statement, see Section 8.

Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography

ASTM D2827-00 苯乙烯单体的标准规范

1.1 This specification covers styrene monomer. 1.2 Consult current OSHA regulations and supplier's Material Safety Data Sheets for all materials used in this specification. 1.3 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.

Standard Specification for Styrene Monomer

ASTM D2121-00 苯乙烯单体和AMS(α-甲基苯乙烯)中聚合物含量的标准试验方法

1.1 These test methods cover the determination of the polymer content of styrene monomer and [alpha]-Methylstyrene (AMS). It should be noted, however, that dimers and trimers are not measured by these test methods. 1.2 Test Method A , which is based on the use of a spectrophotometer or photometer, is intended for the quantitative determination of the polymer content of styrene monomer or AMS in concentrations up to 15 mg/kg. Samples containing more than 15 mg/kg of polymer must be suitably diluted before measurement. 1.3 Test Method B is a rapid visual procedure that is intended for the approximate evaluation of polymer to a maximum concentration of 1.0 weight%. Samples having a polymer content of 1.0 weight% or greater should be suitably diluted prior to measurement. 1.4 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. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.

Standard Test Methods for Polymer Content of Styrene Monomer and AMS (alpha-Methylstyrene)

ASTM D5211-00 对-二甲苯原料用二甲苯的标准规范

1.1 This specification covers xylenes for p-xylene feedstock. These xylenes typically are extracted from reformate.1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, 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 E29.1.3 Consult current OSHA regulations, suppliers' Material Safety Data Sheets (MSDS), and local regulations for all materials used in this specification.

Standard Specification for Xylenes for p-Xylene Feedstock

ASTM D5713-00 毛细气相色谱法分析环己烷原料中高纯度苯的标准试验方法

1.1 This test method covers the determination of specific impurities in, and the purity of benzene for cyclohexane feedstock by gas chromatography. It is applicable to benzene in the range from 99 to 100% purity and to impurities at concentrations of 2 to 10000 mg/kg. 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 a specific hazard statement, see Section 7 and Note 1.

Standard Test Method for Analysis of High Purity Benzene for Cyclohexane Feedstock by Capillary Gas Chromatography

ASTM D850-00 工业芳烃及相关物质蒸馏的标准试验方法

1.1 This test method covers the distillation of industrial aromatic hydrocarbons and related materials of relatively narrow boiling ranges from 30 to 250176;C. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 The following applies to all specified limits in this test method: for the purposes of determining conformance to this test method, an observed 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 E 29.1.4 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. For specific hazard statements, and Section 7.

Standard Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials

ASTM D3797-00 气相色谱法分析邻二甲苯的标准试验方法

1.1 This test method covers the analysis of normally occurring impurities in, and the purity of, -xylene by gas chromatography. Impurities determined include nonaromatic hydrocarbons, benzene, toluene, - and -xylenes, cumene, styrene, and ethylbenzene. 1.2 This test method is applicable for impurities at concentrations from 0.001 to 2.000% and for -xylene purities of 98% or higher. 1.3 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. 1.4 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. For a specific hazard statement, see Section 7.

Standard Test Method for Analysis of o-Xylene by Gas Chromatography

ASTM D850-99A 工业芳烃及相关物质蒸馏的标准试验方法

1.1 This test method covers the distillation of industrial aromatic hydrocarbons and related materials of relatively narrow boiling ranges from 30 to 250176;C. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 The following applies to all specified limits in this test method: for the purposes of determining conformance to this test method, an observed 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 E 29.1.4 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. For specific hazard statements, and Section 7.

Standard Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials

ASTM D3438-99 萘,顺丁烯二酐,苯三甲酸酐的抽样和处置方法

1.1 This practice covers procedures for sampling and handling naphthalene, maleic anhydride, and phthalic anhydride in various solid forms, and as liquids at elevated temperatures from the viewpoints of quality assurance and safety. 1.2 Any person sampling or handling these products should have specific first aid instructions and equipment available for use in the event of personal contact or exposure. 1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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 Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride

ASTM D4492-98 气相色谱法分析苯的标准试验方法

1.1 This test method covers the determination of normally occurring trace impurities in, and the purity of, finished benzene by gas chromatography. 1.2 This test method was judged applicable for nonaromatic impurities at levels from 0.001 to 0.200 weight % and for benzene purities of 99.80 weight % or higher. 1.3 This test method is applicable for aromatic impurities from 0.001 to 0.010 weight % in benzene. 1.4 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. 1.5 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 8.

Standard Test Method for Analysis of Benzene by Gas Chromatography

ASTM D848-97 工业芳烃的酸洗消色标准试验方法

1.1 This test method covers the determination of the acid wash color of benzene, toluene, xylenes, refined solvent naphthas, and similar industrial aromatic hydrocarbons. 1.2 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 8 and Note 1.

Standard Test Method for Acid Wash Color of Industrial Aromatic Hydrocarbons

ASTM D1568-97 烷基苯磺酸盐的取样与化学分析的标准试验方法

1.1 These test methods cover the sampling and chemical analysis of paste, powder, or liquid detergent alkylbenzene sulfonates. 1.2 The procedures for sampling and analysis appear in the following order: Sections Sampling: Powders and Flakes Packed in Cans or Cartons 3 Powders and Flakes in Bulk 4 Liquids 6 Pastes 7 Preparation of Sample 8 Moisture: Distillation Method 10 to 13 Karl Fischer Method 14 to 19 Total Matter Insoluble in Alcohol 20 to 22 Neutral Oil 23 to 26 Chlorides Calculated as Sodium Chloride (NaCl) 27 to 30 pH 31 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.

Standard Test Methods for Sampling and Chemical Analysis of Alkylbenzene Sulfonates

ASTM D853-97(2001) 工业芳香烃中的硫化氢和二氧化硫含量(定性)的标准试验方法

1.1 This test method covers the determination of the hydrogen sulfide and sulfur dioxide content (qualitative) of industrial aromatic hydrocarbons. 1.2This 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 6.

Standard Test Method for Hydrogen Sulfide and Sulfur Dioxide Content (Qualitative) of Industrial Aromatic Hydrocarbons

ASTM D5471-97(2003) O-二甲苯980标准规范

1.1 This specification covers a grade of o-xylene identified as ortho-Xylene 980.1.2 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 E 29.1.3 Consult current OSHA regulations and supplier''s Material Safety Data Sheets, and local regulations for all materials used in this specification.

Standard Specification for O-Xylene 980

ASTM D4735-96(2000) 用气相色谱法测定精制苯中痕量噻吩的标准试验方法

1.1 This test method covers the determination of thiophene in refined benzene in the range from 0.5 mg/kg to 5.0 mg/kg. The range of the test method may be extended by modifying the sample injection volume, calibration range, or sample dilution with thiophene-free solvent.1.2 This test method has been found applicable to benzene characteristic of the type described in Specifications D2359 and D4734 and may be applicable to other types or grades of benzene only after the user has demonstrated that the procedure can completely resolve thiophene from the other organic contaminants contained in the sample.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 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 E29.1.4 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.For specific hazard statements, see Section 7.

Standard Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography

ASTM D1492-96(2000) 通过库仑滴定法测定芳香烃的溴指数的标准试验方法

1.1 This test method covers the determination of the amount of bromine-reactive material in aromatic hydrocarbons. It is usually applied to materials having bromine indexes below 500. Note 1-Other test methods for determining bromine-reactive material are Test Methods D1159, D1491, D2710, and D5776. 1.2 this test method has been found applicable to aromatic hydrocarbons containing no more than trace amounts of olefins and that are substantially free from material lighter than isobutane and have a distillation end point under 288o C. 1.3 The following applies to all specified limits in this standard: For purposes of determining conformance with this standard, and 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. 1.4 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. For a specific hazard statement see Section 8.

Standard Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric Titration

ASTM D1686-96(2004) 熔融状态中固体芳烃与相关材料的颜色的标准试验方法(铂钴标度)

Color by this test method is a measure of color-producing impurities present in the thermally stable solids. This test method is suitable for setting specifications and for use as an internal quality control tool. 1.1 This test method covers the visual measurement of the color of thermally stable solids melting below 150oC. It is applicable only to materials in which the color-producing bodies present have light absorption characteristics quite similar to those of the standards used. 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 Sections 7 and 9.

Standard Test Method for Color of Solid Aromatic Hydrocarbons and Related Materials in the Molten State (Platinum-Cobalt Scale)

ASTM D4077-96 异丙苯(异丙基苯)的标准规范

1.1 This specification covers cumene (isopropylbenzene). 1.2 Consult current OSHA regulations and supplier's Material Safety Data Sheets, and local regulations for all materials 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 Cumene (Isopropylbenzene)