H16 粉末冶金分析方法 标准查询与下载

YS/T 423.2-2000 核级碳化硼粉末化学分析方法.总碳量的测定

Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of total carbon content

YS/T 424.1-2000 二硼化钛粉末化学分析方法.钛量的测定

Methods for chemical analysis of titanium diboride powder.Determination of titanium content

YS/T 423.5-2000 核级碳化硼粉末化学分析方法.氧量的测定

Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of oxygen content

YS/T 423.4-2000 核级碳化硼粉末化学分析方法.铁量的测定

Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of iron content

YS/T 424.2-2000 二硼化钛粉末化学分析方法.总硼量的测定

Methods for chemical analysis of titanium diboride powder.Determination of total boron content

YS/T 424.3-2000 二硼化钛粉末化学分析方法.铁量的测定

Methods for chemical analysis of titanium diboride powder.Determination of iron content

YS/T 424.4-2000 二硼化钛粉末化学分析方法.碳量的测定

Methods for chemical analysis of titanium diboride powder.Determination of carbon content

YS/T 424.5-2000 二硼化钛粉末化学分析方法.氧量的测定

Methods for chemical analysis of titanium diboride powder.Determination of oxygen content

YS/T 422.1-2000 碳化铬化学分析方法.铬量的测定

Methods for chemical analysis of chromium carbide.Determination of chromium content

YS/T 422.2-2000 碳化铬化学分析方法.总碳量的测定

Methods for chemical analysis of chromium carbide.Determination of total carbon content

YS/T 422.3-2000 碳化铬化学分析方法.铁量的测定

Methods for chemical analysis of chromium carbide.Determination of iron content

YS/T 422.4-2000 碳化铬化学分析方法.硅量的测定

Methods for chemical analysis of chromium carbide.Determination of silicon content

YS/T 423.1-2000 核及碳化硼粉末化学分析方法.总硼量的测定

Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of total boron content

BS EN ISO 3325:1999 不包括硬质合金的烧结金属材料.横向断裂强度的测定

This International Standard specifies a method for the determination of the transverse rupture strength of sintered metal materials, excluding hardmetals. The method is particularly suitable for comparing the sin-tered strength of a batch of metal powder with that of a reference powder or with a reference strength. The method is applicable to sintered metal materials, excluding hardmetals, whether they have been sub-jected to heat treatment after sintering or not, and also to materials that have been sized or coined after sintering. It is specially suitable for materials having a uniform hardness throughout their section and negligible duc-tility, i.e. a ductility corresponding to a permanent deformation of less than about 0,5 mm measured between the two supports during the transverse rup-ture strength determination. If the test is applied to materials under conditions other than those specified above, the conditions shall be reported. NOTE 1 The permanent deformation can be measured with sufficient precision from the two fragments of the broken or cracked bar by indexing the lower surface. Alter-natively, the deflection of a straight line drawn horizontally on the side of the test piece can be measured using an optical instrument such as a measuring microscope or optical comparator.

Sintered metal materials, excluding hardmetals - Determination of transverse rupture strength

BS 4359-4:1995 粉末表面系数的测定.第4部分:使用气体表面吸附技术测定金属表面积推荐方法

This Part of BS 4359 describes recommended methods for the determination of metal surface area using gas adsorption. They are suitable for supported monometallic catalysts where the metal surface area differs from the total surface area. These methods may also be suitable for other metal catalysts, such as some Raney materials. Specific recommendations are given for the determination of metal surface area of nickel, palladium, platinum and copper. Information on the extension of these methods to other metals in Groups VIII and IB of the periodic table is given in annex A. Recommendations are made regarding the most suitable gas and test methods for a given metal/support combination. Both chemisorption methods and those which employ surface reaction (or titration) are described. Volumetric or flow techniques may be used to determine the amount of gas chemisorbed. Recommendations are given to correct for any reversible adsorption detected using the volumetric technique.

Determination of the specific surface area of powders - Recommendations for methods of determination of metal surface area using gas adsorption techniques

DIN ISO 4501:1994 硬质合金.钛含量的测定.过氧化物光度法

The document specifies a method for the determination of titanium according the photometric peroxide method.

Hardmetals; determination of titanium; photometric peroxide method; identical with ISO 4501:1978

ISO 3953:1993 金属粉末.振实密度测定

This International Standard specifies a method for the determination of tap density, i.e. the density of a powder that has been tapped in a container under specified conditions.

Metallic powders; determination of tap density

BS EN 27627-4:1993 硬金属 通过火焰原子吸收光谱法进行化学分析 钼、钛和钒含量的测定 0.01 至 0.5 %(m/m)

This part of ISO 7627 specifies the method to be used for the determination of molybdenum, titanium and vanadium con-tents of hardmetals within the range 0,01 to 0,5 % (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.

Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Determination of molybdenum, titanium and vanadium in contents from 0,01 to 0,5 % (m/m)

BS EN 27627-5:1993 硬金属 通过火焰原子吸收光谱法进行化学分析 含量为 0.5 至 2%(m/m)的钴、铁、锰、钼、镍、钛和钒的测定

This part of ISO 7627 specifies the method to be used for the determination of cobalt, iron, manganese, molybdenum, nickel, titanium and vanadium contents of hardmetals within the range 0,5 to 2 % (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 —Determination of element contents in high concentration by the atomic absorption spectrophotometry method yields a wider scat-tering of results than are obtainable by other methods, i.e. ISO 3909, 4501, 4503 and 4883. See also clause 4.2.

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)

BS EN 27627-3:1993 硬金属 通过火焰原子吸收光谱法进行化学分析 钴、铁、锰和镍含量的测定 0.01 至 0.5 %(m/m)

This part of ISO 7627 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 absorption spectrometry. 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 cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m)