有机氮化物标准-分析测试百科网

ASTM D4877-19 聚氨酯原材料的标准试验方法:异氰酸酯中APHA颜色的测定

1.1 This test method measures the color of clear liquids. It is applicable only to materials whose color-producing bodies have light-absorption characteristics similar to those of the platinum cobalt color standards used.2 (See Test Method D1209 and Note 1.) Suitable isocyanates include toluene diisocyanate, and pure or modified monomeric methylene di(phenylisocyanate). 1.2 The values stated in SI units are to be regarded as standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—This standard and ISO 6271-1 address the same subject matter, but differ in technical content. 1.4 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 Polyurethane Raw Materials: Determination of APHA Color in Isocyanates

ICS: 71.080.30
CCS
发布: 2019-08-01
实施

T/CPCIF 0025-2019 四甲基氢氧化铵副产三甲胺水溶液

本标准规定了四甲基氢氧化铵副产三甲胺水溶液的要求、试验方法、检验规则、标志、包装、运输、贮存。

Byproduct of tetramethylammonium hydroxide—Trimethylamine aqueous solution

ICS: 71.080.30
CCS: C261
发布: 2019-03-28
实施: 2019-08-09

T/ZZB 0978-2019 工业用二甲基乙酰胺

本标准规定了工业用二甲基乙酰胺的基本要求、技术要求、试验方法、检验规则及标志、包装、运输、贮存、安全和质量承诺等。本标准适用于以二甲胺和冰乙酸为原料制得的工业用二甲基乙酰胺。该产品主要作为溶剂应用于氨纶、腈纶、芳纶等纤维生产领域，也用于高分子薄膜、涂料和医药等领域。

Dimethylacetamide for industrial use

ICS: 71.080.30
CCS: C261
发布: 2019-02-22
实施: 2019-04-29

ASTM D5297-95(2019) 橡胶化学促进剂的标准试验方法&x2014；高效液相色谱法测定纯度

1.1 These test methods cover the determination of the purity of present commercially available rubber chemical accelerators in the range from 80 to 100 % by high performance liquid chromatography (HPLC) using ultraviolet detection and external standard calculations. 1.2 Expertise in HPLC is necessary to the successful application of these test methods. 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 Methods for Rubber Chemical Accelerator—Purity by High Performance Liquid Chromatography