1.1 本规程涵盖了所有等级的钢（包括铸造和锻造钢）以及所有类型（等级）的铸铁和高炉铁的取样，用于化学和光谱化学成分测定。这种做法类似于ISO 14284 1.2 这一做法分为以下几个部分。 章节 取样和样品制备要求 6. 全体的 6.1 样品 6.2 样品的选择 6.3 样品的制备 6.4 炼钢和生铁生产用液态铁 7. 全体的 7.1 后台文件采样 7.2 探头取样 7.3 分析样品的制备 7.4 铸铁生产用液态铁 8. 全体的 8.1 后台文件采样 8.2 探头取样 8.3 分析样品的制备 8.4 用于测定的取样和样品制备 8.5 氧气和氢气 钢铁生产用液态钢 9 全体的 9.1 探头取样 9.2 后台文件采样 9.3 分析样品的制备 9.4 测定用取样和样品制备 9.5 氧气 测定用取样和样品制备 9.6 氢的 生铁 10 全体的 10.1 增量采样 10.2 分析样品的制备 10.3 铸铁产品 11 全体的 11.1 取样和样品制备 11.2 章节 钢铁产品 12 全体的 12.1 实验室样品或样品的选择 12.2 铸造产品的分析 实验室样品或样品的选择 12.3 从一个锻造产品分析 分析样品的制备 12.4 含铅钢取样 12.5 测定用取样和样品制备 12.6 氧气 测定用取样和样品制备 12.7 氢的 关键词 13 附件 液态钢铁用取样探头 附件A1 钢液取样探头 附件A2 氢气的测定 1.3 以国际单位制表示的数值被视为标准。本标准中不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体说明，请参阅 6.4.3.5 ， 9.4.4.3 ， 12.5.1 、和节 5. 。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 本规程涵盖了试验方法、规程和定义中定义的用于化学分析的钢和铁的取样和制备的所有方面 A751 和规范 四十八/四十八米 .定义了采样地点和批次采样等主题。 4.2 本规程包括对钢和铁进行分析取样的大部分要求。参考本规程的标准试验方法只需包含特殊修改和例外情况。 4.3 所有使用这些程序的人都应该是经过培训的采样器，能够熟练、安全地执行常见的采样操作。只能使用合适的取样设备。

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 Preparation 6 General 6.1 Sample 6.2 Selection of a Sample 6.3 Preparation of a Sample 6.4 Liquid Iron for Steelmaking and Pig Iron Production 7 General 7.1 Spoon Sampling 7.2 Probe Sampling 7.3 Preparation of a Sample for Analysis 7.4 Liquid Iron for Cast Iron Production 8 General 8.1 Spoon Sampling 8.2 Probe Sampling 8.3 Preparation of a Sample for Analysis 8.4 Sampling and Sample Preparation for the Determination of 8.5 Oxygen and Hydrogen Liquid Steel for Steel Production 9 General 9.1 Probe Sampling 9.2 Spoon Sampling 9.3 Preparation of a Sample for Analysis 9.4 Sampling and Sample Preparation for the Determination 9.5 of Oxygen Sampling and Sample Preparation for the Determination 9.6 of Hydrogen Pig Irons 10 General 10.1 Increment Sampling 10.2 Preparation of a Sample for Analysis 10.3 Cast Iron Products 11 General 11.1 Sampling and Sample Preparation 11.2 Sections Steel Products 12 General 12.1 Selection of a Laboratory Sample or a Sample for 12.2 Analysis from a Cast Product Selection of a Laboratory Sample or a Sample for 12.3 Analysis from a Wrought Product Preparation of a Sample for Analysis 12.4 Sampling of Leaded Steel 12.5 Sampling and Sample Preparation for the Determination 12.6 of Oxygen Sampling and Sample Preparation for the Determination 12.7 of Hydrogen Keywords 13 Annexes Sampling Probes for Use with Liquid Iron and Steel Annex A1 Sampling Probes for Use with Liquid Steel for the Annex A2 Determination of Hydrogen 1.3 The values stated in SI units are regarded as standard. No other units of measurement are included in this standard. 1.4 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. For specific statements, see 6.4.3.5 , 9.4.4.3 , 12.5.1 , and Section 5 . 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. ====== Significance And Use ====== 4.1 This practice covers all aspects of sampling and preparing steel and iron for chemical analysis as defined in Test Methods, Practices, and Definitions A751 and Specification A48/A48M . Such subjects as sampling location and the sampling of lots are defined. 4.2 This practice includes most requirements for sampling steel and iron for analysis. Standard test methods that reference this practice need contain only special modifications and exceptions. 4.3 All who use these procedures should be trained samplers capable of performing common sampling operations skillfully and safely. Only proper sampling equipment should be used.