71.080.15 芳香烃 标准查询与下载

KS M ISO 5272-2020 工业用甲苯 规格

Toluene for industrial use－Specifications

KS M ISO 5280-2020 工业用二甲苯 规范

Xylene for industrial use－Specification

ASTM D3160-20a 异丙苯（异丙苯）或AMS（α–；甲基苯乙烯）

1.1 This test method covers the determination of phenol in refined cumene (isopropylbenzene) or AMS (α–methylstyrene). 1.2 This test method has been found applicable in the range from 5 to 50 mg/kg of phenol in refined cumene (isopropylbenzene) or AMS (α–methylstyrene). The limit of detection (LOD) is 0.9 mg/kg and the limit of quantitation (LOQ) is

Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (α–Methylstyrene)

ASTM D852-20 苯凝固点的标准试验方法

1.1 This test method covers the determination of the solidification point of benzene. 1.2 The following applies for the purposes of determining the conformance of the test results using this test method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 Warning—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Safety Data Sheet (SDS) for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Solidification Point of Benzene

SN/T 5261-2020 烃中芳烃化合物的测定 气相色谱法

Determination of aromatic compounds in hydrocarbons by gas chromatography

T/SXCIES 001-2020 煤焦油 pH的测定方法

煤焦油 pH 的测定方法   警示——使用本标准的人员应有正规实验室工作的实践经验。本标准并未指出所有可能的安全问题。使用者有责任采取适当的安全和健康措施，并保证符合国家有关法规规定的条件。 1　范围 本标准给出了煤焦油pH的试验方法、试验步骤、所用仪器和材料。 本标准适用于高温炼焦时从煤气中冷凝所得的煤焦油的pH测定。 2　规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。 GB/T 1999 焦化油类产品取样方法 GB/T 6682 分析实验室用水规格和试验方法 GB/T 8170 数值修约规则与极限数值的表示和判定 GB/T 9977 焦化产品术语 GB/T 27501 pH值测定用缓冲溶液制备方法 3　原理 试样与pH值约为7的蒸馏水以一定比例混合，加热静置一段时间后过滤，用酸度计测定滤液的pH值。 4　试剂 本标准所用试剂和水，均指分析纯试剂和 GB/T 6682 中规定的三级水。 4.1　氨水溶液：1+5。 4.2　盐酸溶液：1+10。 4.3　pH 4.00、pH 6.86、 pH 9.18 标准缓冲溶液：购买或按 GB/T27501 配制。 4.4　pH≈7的蒸馏水：量取蒸馏水1000 mL，用氨水溶液（4.1）或盐酸溶液（4.2）调节其 pH约为7。 5　仪器 5.1　天平：分度值 0.1 g。 5.2　酸度计：精度 0.01。 5.3　电极：测定电极为玻璃电极，参比电极为甘汞电极；或 pH 复合电极。 5.4　φ125 mm 中速定性滤纸。 5.5　烧杯：100 mL、300 mL。 5.6　电热板。 5.7　玻璃漏斗。 6　实验步骤 6.1　仪器调整 使用前，电极应按照仪器使用说明书要求预活化。 打开仪器，预热30 min后按仪器说明书要求，用标准缓冲液（4.3）校正酸度计，并对pH计的温度进行修正。 6.2　试样准备 称取混匀的焦油样品50 g ± 0.5 g 于300 mL 烧杯中，加蒸馏水（4.4）100 mL，在电热板上边搅拌边加热至80 ℃～90 ℃，保持5 min，静置到室温，待样品与水分分层后，将上层水水干过滤于100 mL 烧杯中，取滤液约50 mL，用以测定pH值。 6.3　测定 在测量前，应用蒸馏水充分洗涤电极，然后用滤纸将附于电极上的剩余液体吸干，然后将电极浸入滤液（6.2）中，并轻轻摇动烧杯使滤液均匀。 待示值稳定后，读取酸度计显示的值，读数保留到小数点后一位。   7　允许差 取平行测定结果的算术平均值为最终分析结果。 平行测定结果的绝对差值不大于0.2。

Coal tar-Determination of pH value

T/SXCIES 002-2020 粗苯中水分含量的测定方法

粗苯中水分含量的测定方法 1　范围 本标准给出了粗苯中水分含量的测定方法、试验仪器、试验步骤、结果计算和重复性。 本标准适用于高温炼焦过程所得的粗苯。 2　规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。 GB/T 1999  焦化油类产品取样方法 GB/T 8170  数值修约规则与极限数值的表示和判定 GB/T 6682  分析实验室用水规格和试验方法 3　方法一 卡尔?费休容量法 3.1　原理 在含有甲醇的有机试剂中，试样中的水分与卡尔?费休试剂发生如下列反应： H2O+I2+SO2+C5H5N（或者C3H4N2）→C2H5N?HI（或者C3H4N2?HI）+C5H5N?SO3 C5H5N?SO3（或者C3H4N2?HI）+CH3OH→C5H5N?HSO4CH3（或者C3H4N2IHSO4CH3） 在滴定反应中由两端加上电源的双铂电极跟踪，从去极化的双铂电极所得到的电流信号来控制滴定过程。当溶液中只存在碘化物时，电极极化无电流通过，当达到滴定终点时（此时水反应完毕），溶液中有游离碘存在，使电极去极化，电流突然增加，一个电极上的碘（Iˉ）被氧化，而另外一个电极上同样量的碘（I2）被还原，此时根据所消耗的卡尔?费休试剂体积量即可计算出样品中的水分含量。 3.2　试剂 3.2.1  无水甲醇：分析纯。 3.2.2  卡尔?费休试剂：滴定度在3.5 mg/mL～4.5 mg/mL之间，每次使用前需重新标定对水的滴定度。 3.2.3  去离子水：应符合GB/T6682中三级水规格要求。 3.2.4  干燥剂：变色硅胶，变色硅胶吸附水分后，可通过热脱附方式将水分除去，温度控制在100 ℃～120 ℃为宜。 3.3　试验仪器 3.3.1  卡尔?费休水分测定仪。 3.3.2  双铂电极。 3.3.3  电磁搅拌器。 3.3.4  微量进样器。 3.3.5  实验室常用仪器。 3.4　分析步骤 3.4.1 水值的测定    3.4.1.1　向反应池中注入适量的无水甲醇（3.2.1），使搅拌时池中溶液没过铂电极，液面在电极之上，打开电磁搅拌器。 3.4.1.2　用微量进样器向进样口注入适量去离子水（3.2.3）（质量在5 mg～10 mg之间），记录数据，用卡尔?费休试剂（3.2.2）滴定至终点，记录消耗卡尔?费休试剂的体积数V1。 3.4.1.3　卡尔?费休试剂对水的滴定度（T），mg/mL,按式（1）计算：                  ???????????(1) 式中： m1——所加蒸馏水的质量，单位为毫克（mg）； V1——消耗卡尔?费休试剂的体积数，单位为毫升（mL）。 3.4.1.4　重复3.4.1～3.4.1.3测量步骤，取两次平行测定结果的算术平均值作为卡尔?费休试剂对水的滴定度。卡尔?费休试剂对水的滴定度两次平行测定结果绝对差值不能超过0.20  mg/mL。 3.4.2  试样的测定 用微量进样器移取适量的粗苯试样（水分含量在5 mg～10 mg之间），质量为m2，注入反应池中，用卡尔?费休试剂滴定至终点，记录消耗卡尔?费休试剂的体积数V2。 3.4.3  结果计算 1）粗苯中水分的含量以X计，数值以质量百分数% 表示，按式（2）计算：                                      ???????????.(2) 式中：  T——卡尔?费休试剂对水的滴定度,单位为毫克每毫升（mg/mL）； V2——消耗卡尔?费休试剂的体积数，单位为毫升（mL）； m2——粗苯的质量，g。 2）粗苯中水分的含量，以X计，数值以质量分数mg/kg 表示，按式（3）计算              ??????????? (3) 式中： T——卡尔?费休试剂对水的滴定度,单位为毫克每毫升（mg/mL）； V2——消耗卡尔?费休试剂的体积数，单位为毫升（mL）； m2——粗苯的质量，g。 3.4.4  精密度 重复性r不大于0.02% 4　方法二 卡尔˙费休电量法（库仑法） 4.1　原理 电解池中的卡尔?费休试剂达到平衡时，注入含水的样品，水与碘、二氧化硫发生氧化还原反应，在甲醇、吡啶（或者咪唑）存在的情况下，生成氢碘酸吡啶（或者氢碘酸咪唑）和甲基硫酸吡啶（或者甲基硫酸咪唑），消耗了的碘在阳极电解产生，从而使氧化还原反应不断进行，直至水分全部耗尽为止，依据法拉第电解定律，电解产生碘是同电解时耗用的电量成正比例关系的，其反应关系如下： 在含有甲醇的有机试剂中，试样中的水分与卡尔?费休试剂发生下列反应： H2O+I2+SO2+C5H5N（或者C3H4N2）→C2H5N?HI（或者C3H4N2?HI）+C5H5N?SO3（或者C3H4N2?HI） C5H5N?SO3（或者C3H4N2?HI）+CH3OH→C5H5N?HSO4CH3（或者C3H4N2IHSO4CH3） 在电解过程中，电极反应如下: 阳极：2I--2e→I2 阴极：I2+2e→2I- 2H++2e→H2↑  从以上反应中可以看出，即1摩尔的碘氧化1摩尔的二氧化硫，需要1摩尔的水。所以是1摩尔碘与1摩尔水的当量反应，即电解碘的电量相当于电解水的电量，电解1摩尔碘需要2×96493库仑电量，电解1毫摩尔水需要电量为2×96493毫库仑电量。 4.2　试剂 4.2.1  卡尔?费休试剂。 4.2.2  去离子水：应符合GB/T6682中三级水规格要求。 4.2.3  干燥剂：变色硅胶，变色硅胶吸附水分后，可通过热脱附方式将水分除去，温度控制在100℃～120℃为宜。 4.3　试验仪器 4.3.1  卡尔?费休库仑法水分测定仪。 4.3.2  微量进样器。 4.3.4  实验室常用仪器。 4.4　分析步骤 4.4.1  仪器的自检    4.4.1.1　向反应池中注入适量的库仑法用的卡尔?费休试剂（4.3.1），使搅拌时池中溶液没过铂电极，液面在电极之上，打开电磁搅拌器。 4.4.1.2　当仪器显示正常后，用微量进样器向进样口注入适量去离子水（4.2.2），重复测定两三次后，若结果在仪器允许误差范围内，即可以正常测量。 4.4.2  试样的测定 用微量进样器取适量的粗苯试样，注入反应池中，按照操作步骤进行测量。 4.4.3  结果计算 采用库仑法测定时，仪器一般直接显示样品含水量，可以按照3.4.3方法换算为所需要单位。仪器若不能直接显示含水量，样品中水分含量按式（4）方法计算：                          ????????? (4)   式中： W ——粗苯中水分含量，单位为微克（μg）； Q ——电解电量，单位为毫库仑（mC）； 18——水的分子量，单位为克每摩尔(g/mol)。 4.4.4  精密度 重复性r不大于0.02%。  

Crude benzol- Determination of moisture content

ASTM D7536-20 通过单色波长色散X射线荧光光谱法测定芳烃中氯的标准测试方法

1.1 This test method covers the determination of chlorine by monochromatic wavelength-dispersive X-ray fluorescence (MWDXRF) spectrometry in aromatic hydrocarbons, their derivatives, and related chemicals. 1.2 This test method is applicable to samples with chlorine concentrations to 10 mg/kg. Higher chlorine concentrations can be determined by quantitatively diluting the sample with a suitable solvent. The limit of detection (LOD) is 0.2 mg/kg and the limit of quantitation is 0.7 mg/kg. With careful analytical technique or the measurement of replicates, or both, this method can be used to successfully analyze concentrations below the LOD. NOTE 1—The maximum is the highest concentration from the interlaboratory study (ILS) and the LOD and LOQ were calculated from Performance Testing Program (PTP) data. See Table 3. 1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard information, see Section 9. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Chlorine in Aromatics by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry

ASTM D3160-20 异丙苯（异丙苯）或AMS（α-甲基苯乙烯）苯酚含量的标准试验方法

Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (α–Methylstyrene)

ASTM D3852-20 苯酚 甲酚和甲酚的取样和处理标准实践

1.1 This practice covers procedures for sampling and handling phenol, cresols and cresylic acid in solid and liquid forms, including liquids at elevated temperatures, in a safe manner that represents and preserves quality. In general, this practice also applies to xylenols, and some other alkylated phenolic materials; however, specific information regarding these materials should be sought and used if available. 1.2 Any person sampling or handling these products should consult the applicable Safety Data Sheet (SDS) for specific first aid instructions and information on the proper equipment to have available for use in the event of personal contact or exposure. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Sections 3, 4, 5, 6, 7, 8 and an appropriate SDS. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Practice for Sampling and Handling Phenol, Cresols, and Cresylic Acid

ASTM D7184-20 通过氧化燃烧和减压化学发光检测芳香烃中超低氮的标准试验方法

1.1 This test method covers the determination of total nitrogen in aromatic hydrocarbons, such as benzene, toluene, and xylene. 1.2 This test method is applicable to samples with nitrogen concentrations up to 1.2 mg/kg. The Limit of Detection (LOD) is 0.04 mg/kg N and the Limit of Quantitation (LOQ) is 0.13 mg/kg N. For higher nitrogen concentrations refer to Test Method D4629. With careful analytical technique, this method can be used to successfully analyze concentrations below the current scope (see Appendix X1). NOTE 1—LOD and LOQ were calculated using data in ASTM Research Report RR:D16-1044. 1.3 In determining the conformance of the test results using this method to applicable specifications; results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection

ASTM D7504-20 用气相色谱和有效碳数标准测定单环芳烃中痕量杂质的方法

Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number

SH/T 1825-2019 工业用碳九芳烃

Industrial carbon nine aromatics

ASTM D841-19 硝化级甲苯的标准规范

1.1 This specification covers nitration grade toluene. 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 E29. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 Consult current OSHA regulations, supplier’s Safety Data Sheets, and local regulations for all materials used in this specification. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Nitration Grade Toluene

ASTM D7124-19 用于沸石催化剂的苯的标准规范

1.1 This specification covers benzene for use with zeolite based catalysts. 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 E29. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 Consult current OSHA regulations, supplier’s Safety Data Sheets, and local regulations for all materials used in this specification. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Benzene for Use with Zeolite Based Catalysts

ASTM D7184-19 通过氧化燃烧和减压化学发光检测芳香烃中超低氮的标准试验方法

Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection

ASTM D3438-19 萘、顺丁烯二酸酐和苯酐的取样和处理的标准实施规程

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 in a safe manner that represents and preserves quality. 1.2 Any person sampling or handling these products should consult the applicable Safety Data Sheet (SDS) for specific first aid instructions and information on the proper equipment to have available for use in the event of personal contact or exposure. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Sections 3, 4, 5, 6, and 7 and an appropriate SDS. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride

ASTM D5606-19 甲苯二异氰酸酯（TDI）原料用甲苯的标准规范

1.1 This specification covers toluene for toluene diisocyanate (TDI) feedstock. 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 E29. 1.3 Consult OSHA regulations and supplier’s Safety Data Sheets for all materials used in this specification. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock

ASTM D5211-19 二甲苯进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 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4 Consult current OSHA regulations, suppliers’ Safety Data Sheets (SDS), and local regulations for all materials used in this specification. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Xylenes for p-Xylene Feedstock

YB/T 4744-2019 对甲基苯酚

p-methylphenol