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化合物测定钢铁标准样品的标准操作
详细信息   
文摘

This practice covers all aspects of sampling and preparing steel and iron for chemical analysis as defined in Test Methods, Practices, and Definitions A 751 and Specification A 48/A 48M. Such subjects as sampling location and the sampling of lots are defined.

It is intended that this practice include most requirements for sampling steel and iron for analysis. Standard analytical methods that reference this practice need contain only special modifications and exceptions.

It is assumed that all who use these procedures will be trained samplers capable of performing common sampling operations skillfully and safely. It is expected that only proper sampling equipment will be used.

1.1 This practice covers the sampling of all grades of steel, both cast and wrought, and all types (grades) of cast irons and blast furnace iron for chemical and spectrochemical determination of composition. This practice is similar to ISO 14284.

1.2 This practice is divided into the following sections.

Sections
Requirements for Sampling and Sample Preparation6
General6.1
Sample6.2
Selection of a Sample6.3
Preparation of a Sample6.4
Liquid Iron for Steelmaking and Pig Iron Production7
General7.1
Spoon Sampling7.2
Probe Sampling7.3
Preparation of a Sample for Analysis7.4
Liquid Iron for Cast Iron Production8
General8.1
Spoon Sampling8.2
Probe Sampling8.3
Preparation of a Sample for Analysis8.4
Sampling and Sample Preparation for the Determination of8.5
Oxygen and Hydrogen
Liquid Steel for Steel Production9
General9.1
Probe Sampling9.2
Spoon Sampling9.3
Preparation of a Sample for Analysis9.4
Sampling and Sample Preparation for the Determination

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