1.1 本试验方法描述了为测定灰分和总铁含量而对来自运行中轧钢厂的轧制油在水中的分散进行取样和测试的程序。其目的是提供一种试验方法，以便可以采集代表性样品，并且铁分离、脂肪乳分离等现象不会导致灰分和总铁测定中的分析误差。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 有关具体的警告声明，请参阅第节 6. 和 7. . ====意义和用途====== 4.1 循环钢厂轧制油分散液的生命周期和清洁度受铁含量的影响。这种铁主要由酸洗残渣中的铁和冷轧过程中钢板或轧辊磨损产生的铁组成。 在对轧制油进行全铁采样时，很难防止含铁污泥粘附在样本容器上。因此，从等分样品中测定总铁的准确性值得怀疑。本规程提供了一种方法，以确保样品中包含的所有铁都包含在分析中。 4.2 虽然不太重要，但灰分仍是获得总铁分析程序的重要部分。通常，灰分主要是铁，在许多情况下，可以作为总铁的替代物来确定何时改变分散度。

1.1 This test method describes a procedure for sampling and testing dispersions of rolling oils in water from operating steel rolling mills for determination of ash and total iron content. Its purpose is to provide a test method such that a representative sample may be taken and phenomenon such as iron separation, fat-emulsion separation, and so forth, do not contribute to analytical error in determination of ash and total iron. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see Sections 6 and 7 . ====== Significance And Use ====== 4.1 The life cycle and cleanliness of a recirculating steel mill rolling oil dispersion is affected by the amount of iron present. This iron consists mainly of iron from acid pickling residues and iron from attrition of the steel sheet or rolls during cold rolling. In sampling rolling oils for total iron it is difficult to prevent adherence of iron containing sludge to the sample container. Thus, the accuracy of a total iron determination from an aliquot sample is suspect. This practice provides a means for ensuring that all iron contained in a sample is included in the analysis. 4.2 Although less significant, the ash content is still an essential part of the procedure for obtaining a total iron analysis. Generally, the ash will be mostly iron, and in many cases, could be used as a substitute for total iron in determining when to change the dispersion.