71.040.40 化学分析 标准查询与下载

ASTM E203-24 用容量卡尔费休滴定法测定水的标准试验方法

1.1 This test method is intended as a general guide for the application of the volumetric Karl Fischer (KF) titration for determining free water and water of hydration in most solid or liquid organic and inorganic compounds. This test method is designed for use with automatic titration systems capable of determining the KF titration end point potentiometrically; however, a manual titration method for determining the end point visually is included as Appendix X1. Samples that are gaseous at room temperature are not covered (see Appendix X4). This test method covers the use of pyridine-free KF reagents for determining water by the volumetric titration. Determination of water using KF coulometric titration is not discussed. By proper choice of the sample size, KF reagent concentration and apparatus, this test method is suitable for measurement of water over a wide concentration range, that is, parts per million to pure water. 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. Specific warnings are given in 3.1. 1.4 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions for chemicals used in this test procedure. 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 Water Using Volumetric Karl Fischer Titration

T/GDCDC 036-2023 聚季铵盐中丙烯 酰胺残留的测定 高效液相色谱法

聚季铵盐试样经甲醇、异丙醇、饱和氯化钠混合溶剂提取后，取上清液经0.45μm微孔滤膜，用高 效液相色谱-紫外检测法测定，保留时间定性，外标峰面积法定量。

Determination of acrylamide residuals in polyquaternary ammonium salt-High performance liquid chromatography

HG/T 6233-2023 废硫酸中钛离子的测定方法

Determination method of titanium ions in waste sulfuric acid

23/30469291 DC BS ISO 17973 表面化学分析 中分辨率俄歇电子能谱仪 元素分析能量标度的校准

BS ISO 17973. Surface chemical analysis. Medium-resolution Auger electron spectrometers. Calibration of energy scales for elemental analysis

KS E 3056-2023 铬矿化学分析通则

General rules for chemical analysis of chromium ores

KS E 3010-2023 锰矿石化学分析通则

General rules for chemical analysis of manganese ores

23/30477424 DC BS ISO 20579-1 表面化学分析 样品处理、制备和安装 第1部分：分析前记录和报告样品的处理情况

BS ISO 20579-1. Surface chemical analysis. Sample handling, preparation and mounting - Part 1. Documenting and reporting the handling of specimens prior to analysis

ASTM D5808-23 用微库仑法测定芳烃和有关化学品中氯化物的标准试验方法

Standard Test Method for Determining Chloride in Aromatic Hydrocarbons and Related Chemicals by Microcoulometry

ASTM E2160-23 用差示扫描量热法测定热反应材料反应热的标准试验方法

Standard Test Method for Heat of Reaction of Thermally Reactive Materials by Differential Scanning Calorimetry

ASTM D6843-10(2023) 橡胶配方中使用的硅烷的标准试验方法（双（三乙氧基甲硅烷基丙基）砜）:气相色谱法（GC）表征

Standard Test Method for Silanes Used in Rubber Formulations (bis-(triethoxysilylpropyl)sulfanes): Characterization by Gas Chromatography (GC)

ASTM D5544-16(2023) 高纯水蒸发后残留物在线测量的标准试验方法

Standard Test Method for On-Line Measurement of Residue After Evaporation of High-Purity Water

KS D 1790-2023 镍铬电热材料化学分析方法

Method of chemical analysis for nickel chromium electric heating material

KS D 1823-2023 铁和钢铝含量的测定方法

lron and steel — Methods for determination of aluminium content

ISO/DIS 17973:2023 表面化学分析 中分辨率俄歇电子能谱仪 元素分析能级的校准

Surface chemical analysis — Medium-resolution Auger electron spectrometers — Calibration of energy scales for elemental analysis

ISO 6142-2:2023 气体分析 校准气体混合物的制备 第2部分：II类混合物的重量分析法

Gas analysis — Preparation of calibration gas mixtures — Part 2: Gravimetric method for Class II mixtures

ASTM D6827-02(2023) 通过火焰原子吸收法（A.A.）对地板抛光剂和地板抛光剂聚合物进行锌分析的标准测试方法

1.1  This laboratory test method covers the analysis of floor polishes and floor polish polymers for total zinc content. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3  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 Zinc Analysis of Floor Polishes and Floor Polish Polymers By Flame Atomic Absorption (A.A.)

GSO ISO 6145-1:2023 气体分析 使用动态方法制备校准气体混合物 第1部分：一般方面

This document gives a brief overview of each of the dynamic techniques which are described in detail in the subsequent parts of ISO 6145. This document provides basic information to support an informed choice for one or another method for the preparation of calibration gas mixtures. It also describes how these methods can be linked to national measurement standards to establish metrological traceability for the composition of the prepared gas mixtures. Since all techniques are dynamic and rely on flow rates, this document describes the calibration process by measurement of each individual flow rate generated by the device. Methods are also provided for assessing the composition of the generated gas mixtures by comparison with an already validated calibration gas mixture. This document provides general requirements for the use and operation of dynamic methods for gas mixture preparation. It also includes the necessary expressions for calculating the calibration gas composition and its associated uncertainty. Gas mixtures obtained by these dynamic methods can be used to calibrate or control gas analysers. The storage of dynamically prepared gas mixtures into bags or cylinders is beyond the scope of this document.

Gas analysis — Preparation of calibration gas mixtures using dynamic methods — Part 1: General aspects

ASTM D5902-05(2023) 橡胶的标准试验方法——用碘值测定氢化丁腈橡胶（HNBR）中残余不饱和度

Standard Test Method for Rubber—Determination of Residual Unsaturation in Hydrogenated Nitrile Rubber (HNBR) by Iodine Value

23/30442725 DC BS ISO 5861 草案 表面化学分析 X射线光电子能谱 石英晶体单色 Al Kα XPS 仪器的强度校准方法

Draft BS ISO 5861. Surface chemical analysis. X-ray photoelectron spectroscopy. Method of intensity calibration for quartz-crystal monochromated Al Kα XPS instruments

ISO/CD 20579-1:2023 表面化学分析 - 样品处理、制备和安装 - 第 1 部分：分析前记录和报告样品的处理

Surface chemical analysis — Sample handling, preparation and mounting — Part 1: Documenting and reporting the handling of specimens prior to analysis