【国外标准】 Standard Specification for Sampling and Sample Preparation of Lead and Lead Alloys for Optical Emission Spectrometric or ICP Analysis

This specification covers the sampling of lead and lead alloys to obtain a sample suitable for quantitative optical emission spectrochemical analysis. It includes procedures for sample preparation, obtaining representative samples from molten metal, from fabricated, or cast products that can be melted, and from other forms that cannot be melted. This specification, used in conjunction with an appropriate quantitative optical emission spectrochemical method, is suitable for use in manufacturing control, material or product acceptance, and development and research. It deals with ordering information, materials and manufacture, composition, sizes and shapes, appearance, lot, sampling for chemical analysis, apparatus, preparation of specimens, marking and special requirements, inspection, and rejection and rehearing.1.1 This specification covers the sampling of lead and lead alloys to obtain a sample suitable for quantitative optical emission spectrochemical analysis. Included are procedures for sample preparation, obtaining representative samples from molten metal, from fabricated, or cast products that can be melted, and from other forms that cannot be melted.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.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.