H16 粉末冶金分析方法 标准查询与下载

BS EN 27627-2:1993 硬质金属.用火焰原子吸收光谱法进行化学分析.从0.001 %至0.02 %(m/m)含量钙、钾、镁和钠的测定

This part of ISO 7627 specifies the method to be used for the determination of calcium, potassium, magnesium and sodium contents of hardmetals within the range 0,001 to 0,02 % (m/m) by flame atomic absorption spectrometry. General requirements concerning the field of application, prin-ciple, interfering elements, apparatus, sampling and test report are given in ISO 7627/1. NOTE —In low concentrations, the determination of these elements is very critical. Every care should be taken to avoid contamination from atmosphere and reagents.

Hardmetals - Chemical analysis by flame atomic absorption spectrometry - Determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m)

BS EN 27627-6:1993 硬金属 通过火焰原子吸收光谱法进行化学分析 铬含量的测定 0.01 至 2 %(m/m)

This part of ISO 7627 specifies the method to be used for the determination of the chromium content of hardmetals within the range 0,01 to 2 % (m/m) by flame atomic absorption spec-trometry. General requirements concerning the field of application, prin-ciple, interfering elements, apparatus, sampling and test report are given in ISO 7627/1.

Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Determination of chromium in contents 0,01 to 2 % (m/m)

BS EN 24491-1:1993 金属粉末.用还原法测定氧含量.通则

This part of ISO 4491 is the first part of a series dealing with the determination of oxygen content in metallic powders by reduc-tion methods. It gives general guidance to these methods, and gives some recommendations for the correct interpretation of the results obtained. The test methods are applicable generally to all powders of metals, alloys, carbides and mixtures thereof. The constituents of the powder shall be non-volatile under the conditions of test. The powder shall be free of lubricant or organic binder. However, there exist certain limitations which depend upon the nature of the analysed metal. These limitations are discussed in clause 4.

Metallic powders - Determination of oxygen content by reduction methods - General guidelines

JB/T 6237.12-1992 电触头用银粉化学分析方法 重量法测定氯化银含量

本标准规定了电触头用银粉中氯化银含量的测定方法。 本标准适用于电触头用银粉中氯化银含量的测定。测定范围：＜O.05%。

Determination of Silver Chloride Content by Gravimetric Method for Chemical Analysis of Silver Powder Used in Electrical Contacts

JB/T 6237.5-1992 电触头用银粉化学分析方法 火焰原子吸收光谱法测定镍量

本标准规定了电触头用银粉中镍含量的测定方法。 本标准适用于电触头用银粉中镍含量的测定。测定范围：O.005%～O.050%。

Chemical analysis method of silver powder for electrical contacts Determination of nickel content by flame atomic absorption spectrometry

JB/T 6237.1-1992 电触头用银粉化学分析方法 氯化银沉淀—对二甲替氨基亚苄基罗丹宁分光光度法测量银量

本标准规定了电触头用银粉中银含量的测定方法。 本标准适用于电触头用银粉中银含量的测定。测定范围：99.60%～99.98%。

Silver powder chemical analysis methods for electrical contacts Silver chloride precipitation - p-Dimethylaminobenzylidene rhodanine spectrophotometric method for silver determination

JB/T 6237.2-1992 电触头用银粉化学分析方法 双环已酮草酰二腙分光光度法测定铜量

本标准规定了电触头用银粉中铜含量的测定方法。 本标准适用于电触头用银粉中铜含量的测定。测定范围：0.005%-0.050%

Silver powder chemical analysis method for electrical contacts Determination of copper content by bicyclohexanone oxalyldihydrazone spectrophotometry

JB/T 6237.3-1992 电触头用银粉化学分析方法 邻菲罗啉分光光度法测定铁量

本标准规定了电触头用银粉中铁含量的测定方法。 本标准适用于电触头用银粉中铁含量的测定。测定范围：O.001%～O.020%。

Silver powder chemical analysis method for electrical contacts o-phenanthroline spectrophotometric determination of iron content

JB/T 6237.4-1992 电触头用银粉化学分析方法 2-（5-溴-2-吡啶偶氨）-5-二乙氨基苯酚分光光度法测定镍量

本标准规定了电触头用银粉中镍含量的测定方法。 本标准适用于电触头用银粉中镍含量的测定.测定范围： 0.005%～0.050%。

Silver powder chemical analysis method for electrical contacts 2-(5-bromo-2-pyridylamido)-5-diethylaminophenol spectrophotometric determination of nickel content

JB/T 6237.6-1992 电触头用银粉化学分析方法 火焰原子吸收光谱法测定钠量

本标准规定了电触头用银粉中钠含量的测定方法。 本标准适用于电触头用银粉中钠含量的测定。测定范围：0.002%～O.020%。

Silver powder chemical analysis method for electrical contacts - Determination of sodium content by flame atomic absorption spectrometry

JB/T 6237.7-1992 电触头用银粉化学分析方法 二甲苯胺兰II分光光度法测定镁量

本标准规定了电触头用银粉中镁含量的测定方法。 本标准适用于电触头用银粉中镁含量的测定。测定范围：O.002%～0.020%。

Determination of Magnesium Content by Xylene Blue II Spectrophotometric Method for Chemical Analysis of Silver Powder Used in Electrical Contacts

JB/T 6237.8-1992 电触头用银粉化学分析方法 火焰原子吸收光谱法测定镁量

本标准规定了电触头用银粉中镁含量的测定方法。 本标准适用于电触头用银粉中镁含量的测定。测定范围：O.0005%～O.005%。

Determination of magnesium content by flame atomic absorption spectrometry for chemical analysis of silver powder for electrical contacts

JB/T 6237.9-1992 电触头用银粉化学分析方法 重量法测定水份含量

本标准规定了电触头用银粉中水份的测定方法。 本标准适用于电触头用银粉中水份的测定。测定范围：＜0.05%。

Silver powder chemical analysis method gravimetric method for determination of water content in electrical contacts

JB/T 6237.10-1992 电触头用银粉化学分析方法 银粉水溶液PH值测定

本标准规定了电触头用银粉水溶液pH值的测定方法。 本标准适用于电触头用银粉水溶液pH值的测定。测定范围：pH4～10

Determination of pH value of silver powder aqueous solution by chemical analysis method of silver powder for electrical contacts

JB/T 6237.11-1992 电触头用银粉化学分析方法 联苯胺目视比色法测定硝酸盐含量

本标准规定了电触头用银粉中硝酸盐含量的测定方法。 本标准适用于电触头用银粉中硝酸盐含量的测定。测定范围：＜0.005%。

Silver powder chemical analysis method for electrical contacts Determination of nitrate content by benzidine visual colorimetry

DIN ISO 3908:1991 硬质合金.不溶(游离)性碳含量的测定.重量分析法

The standard specifies a gravimetric method for determination of the insoluble (free) carbon content of carbides and hardmetals.

Hardmetals; determination of insoluble (free) carbon content; gravimetric method; identical with ISO 3908:1985

DIN ISO 7627-5:1991 硬质合金.采用火焰原子吸收光谱法的化学分析.第5部分:含量为 0.5 % - 2 % (m/m)(平均克分子)的钴、铁、锰、钼、镍、钛和钒含量的测定; 等同采用 ISO 7627-5:1983

Hardmetals; chemical analysis by flame atomic absorption spectrometry; determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium in contents from 0,5 to 2 % (m/m); identical with ISO 7627-5:1983

DIN ISO 7627-4:1991 硬质合金.采用火焰原子吸收光谱法的化学分析.第4部分:含量为 0.01 % - 0.5 % (m/m)(平均克分子)的钼、钛和钒含量的测定; 等同采用 ISO 7627-4:1983

The standard specifies the method to be used for the determination of molybdenum, titanium and vanadium contents of hardmetals within the range 0,01 to 0,5 % (m/m) by flame atomic spectrometry.#,,#

Hardmetals; chemical analysis by flame atomic absorption spectrometry; determination of molybdenum, titanium and vanadium in contents from 0,01 to 0,5 % (m/m); identical with ISO 7627-4:1983

DIN ISO 7627-3:1991 硬质合金.采用火焰原子吸收光谱法的化学分析.第3部分:含量为 0.01 % - 0.5 % (m/m)(平均克分子)的钴、铁、锰和镍含量的测定; 等同采用 ISO 7627-3:1983

The standard specifies the method to be used for the determination of cobalt, iron, manganese and nickel contents of hardmetals within the range 0,01 to 0,5 % (m/m) by flame atomic spectrometry.

Hardmetals; chemical analysis by flame atomic absorption spectrometry; determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m); identical with ISO 7627-3:1983

DIN ISO 7627-2:1991 硬质合金.采用火焰原子吸收光谱法的化学分析.第2部分:含量为 0.001 % - 0.02 % (m/m)(平均克分子)的钙、钾、镁和钠含量的测定; 等同采用 ISO 7627-2:1983

The standard specifies the method to be used for the determination of calcium, potassium, magnesium and sodium contents of hardmetals with in the range 0,001 to 0,02 % (m/m) by flame atomic spectrometry.

Hardmetals; chemical analysis by flame atomic absorption spectrometry; determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m); identical with ISO 7627-2:1983