71.080.40 有机酸 标准查询与下载

ASTM D7883-20 通过弱阴离子交换高效液相色谱法测定纯化对苯二甲酸中的4-羧基苯甲醛和

ASTM D7881-20 用反向电压模式的毛细管电泳测定纯化对苯二甲酸中4-羧基苯甲醛和

ASTM D7882-20 用正常电压模式的毛细管电泳测定纯化对苯二甲酸中的4-羧基苯甲醛和 p

1.1 This test method covers the determination of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) in purified terephthalic acid (PTA) by capillary electrophoresis (CE) with normal voltage mode and UV detection. It is applicable for 4-CBA from 5 to 400 mg/kg and for p-TOL from 10 to 400 mg/kg, respectively. 1.2 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. 1.3 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. 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 Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Normal Voltage Mode

ASTM D7884-20 通过反相高效液相色谱法测定纯化对苯二甲酸中的4-羧基苯甲醛和 p

1.1 This test method covers the determination of the 4-Carboxybenzaldehyde (4-CBA) and p-Toluic acid (p-TOL) in purified terephthalic acid (PTA) by reverse phase high performance liquid chromatography (HPLC). This method is applicable for 4-CBA from 2 to 500 mg/kg and for p-TOL from 10 to 500 mg/kg, respectively. 1.2 In determining the conformance of the test results using this method to applicable specification, 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 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. 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 Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography

ASTM D7881-20e1 用反向电压模式的毛细管电泳测定纯化对苯二甲酸中4-羧基苯甲醛和

ASTM D5317-20 用电子捕获检测器通过气相色谱法测定水中氯化有机酸化合物的标准测试方法

1.1 This test method covers a gas chromatographic procedure for the quantitative determination of selected chlorinated acids and other acidic herbicides in water. Similar chemicals may also be determined by this test method, but it is the user’s responsibility to verify the applicability of this test method to any compounds not listed in this scope. The acid form of the following compounds were interlaboratory tested using this test method, and the results were found acceptable:2 Analyte Chemical Abstract Services Registry Number Bentazon 25057-89-0 2,4-D 94-75-7 2,4-DB 94-82-6 DCPA acid metabolites 2 Dicamba 1918-00-9 3,5-Dichlorobenzoic acid 51-36-5 Dichlorprop 120-36-5 5-Hydroxydicamba 7600-50-2 Pentachlorophenol (PCP) 87-86-5 Picloram 1918-02-1 2,4,5-T 93-76-5 2,4,5-TP (Silvex) 93-72-1 1.2 This test method may be applicable to the determination of salts and esters of analyte compounds. The form of each acid is not distinguished by this test method. Results are calculated and reported for each listed analyte as the total free acid. 1.3 This test method has been validated in an interlaboratory test for reagent water and finished tap water. The analyst should recognize that precision and bias reported in Section 18 may not be applicable to other waters. 1.4 This test method is restricted to use by or under the supervision of analysts experienced in the use of gas chromatography (GC) and in the interpretation of gas chromatograms. Each analyst must demonstrate the ability to generate acceptable results with this test method using the procedure described in 19.3. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices. 1.5 Analytes that are not separated chromatographically, that is, which have very similar retention times, cannot be individually identified and measured in the same calibration mixture or water sample unless an alternate technique for identification and quantitation exists (16.6, 16.7, and 16.8). 1.6 When this test method is used to analyze unfamiliar samples for any or all of the analytes given in 1.1, analyte identifications must be confirmed by at least one additional qualitative technique. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 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 warning statements, see Sections 6, 8, 9, and 10. 1.9 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 Determination of Chlorinated Organic Acid Compounds in Water by Gas Chromatography with an Electron Capture Detector

ASTM D8032-20 通过颜色指示剂滴定的对苯二甲酸的酸值的标准测试方法

1.1 This test method covers the determination of acid number of terephthalic acid (TA) by color-indicator titration. Acid number of TA product is usually within 674 to 676 mg KOH/g. 1.2 In determining the conformance of the test results using this method, 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 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. 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 Test Method for Acid Number of Terephthalic Acid by Color-Indicator Titration

T/CIESC 0009-2020 2,6-萘二甲酸

本标准规定了2,6-萘二甲酸的要求、试验方法、检验规则以及标志、包装、运输、贮存。 本标准适用于以2-烷基-6-酰基萘或2,6-二烷基萘为原料，经液相氧化生产的2,6-萘二甲酸，以及再经活性炭脱色、重结晶、分离、干燥后制得的高纯2,6-萘二甲酸。 2,6-萘二甲酸英文名：2,6-naphthalene dicarboxylic acid，英文名缩写：2,6-NDA。 2,6-萘二甲酸分子式：C12H8O4，相对分子质量：216.19（按2009年国际相对原子质量）。

2,6-Naphthalene dicarboxylic acid

T/LYYY 002-2020 三氯异氰尿酸片剂

本标准规定了三氯异氰尿酸片剂的要求、试验方法、检验规则、标志、包装、运输和贮存。

Trichloroisocyanuric acid tablets

T/CPCIF 0053-2020 2-丙烯酰胺基-2-甲基丙磺酸

项目　指标 　I型　II型 2-丙烯酰胺基-2-甲基丙磺酸（质量分数）/%　≥99.0　≥95.0 熔点/℃　≥185.0　≥183.0 铁含量（质量分数）/mg/kg                                　≤5.0　≤5.0 酸值/mgKOH/g　265-280　265-280 水分（质量分数）/%　≤0.5　≤0.5 色度（铂-钴色号）/Hazen单位　≤20　≤40 丙烯酰胺ａ（含量）/mg/kg　-　- 注1：I型宜用于生产高分子量聚合物领域，如絮凝剂、油田三采用高分子量聚合物驱油剂等。 注2：II型宜用于对聚合物分子量要求较低的领域，如高效循环水处理药剂生产等。 ａ丙烯酰胺的含量，当客户有特殊需求时，由供需双方协商。

2-Acrylamido-2-methylpropanesulfonic acid

ASTM D7976-14(2020) 纯化对苯二甲酸（PTA）的标准规格

1.1 This specification covers purified terephthalic acid (PTA) for use in the manufacturing of polymers. Some examples include the production of polyesters for fiber, filament, yarn, film, coating, bottle and resin applications. 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 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. 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 Specification for Purified Terephthalic Acid (PTA)

HG/T 5623-2019 对甲基苯磺酸

p-Toluenesulfonic acid

ASTM D7882-19 用正常电压模式的毛细管电泳测定纯化对苯二甲酸中的4-羧基苯甲醛和 p

Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Normal Voltage Mode

ASTM D7883-19 通过弱阴离子交换高效液相色谱法测定纯化对苯二甲酸中的4-羧基苯甲醛和

ASTM D7884-19 通过反相高效液相色谱法测定纯化对苯二甲酸中的4-羧基苯甲醛和 p

Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography

ASTM D7881-19 用反向电压模式的毛细管电泳测定纯化对苯二甲酸中4-羧基苯甲醛和

ASTM D3546-05(2019) 冰醋酸中甲酸的标准试验方法

1.1 This test method covers the determination of the formic acid (and other reducing substances) content of glacial acetic acid by oxidation with lead tetraacetate.2 1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) 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 For hazard information and guidance, see the supplier’s Material Safety Data Sheets. 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. 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 Formic Acid in Glacial Acetic Acid

ASTM D8062-19 含低甲基苯甲酸的精对苯二甲酸（PTA）的标准规范

Standard Specification for Purified Terephthalic Acid (PTA) with Low p-Toluic Acid

ASTM D5310-10(2018) 毛细管气相色谱法测定焦油酸组成的标准试验方法

1.1 This test method covers the quantitative determination of phenol and certain homologues of phenol in tar acid and cresylic acid mixtures using capillary gas chromatography. It is a normalization test method that determines homolog distribution but is not an absolute assay since it does not account for water or other compounds not detected by a flame ionization detector. 1.2 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. 1.3 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 Section 8. 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 Test Method for Tar Acid Composition by Capillary Gas Chromatography

HG/T 5400-2018 工业甲基磺酸铅

Industrial lead methane sulfonate