ISO 12624:2022 建筑设备和工业装置用绝热产品 水溶性氯化物、氟化物、硅酸盐、钠离子的痕量和pH的测定

标准编号：ISO 12624:2022

中文名称：建筑设备和工业装置用绝热产品 水溶性氯化物、氟化物、硅酸盐、钠离子的痕量和pH的测定

英文名称：Thermal insulating products for building equipment and industrial installations — Determination of trace quantities of water-soluble chloride, fluoride, silicate, sodium ions and pH

发布日期：2022-08

标准范围

本文件规定了测定产品水萃取物中痕量水溶性氯化物、氟化物、硅酸盐和钠离子的设备和程序。它还描述了测定水提取物pH值的程序。适用于隔热产品。注意这些参数的确定可能与拟用于不锈钢奥氏体钢表面的隔热产品有关。在某些条件下，氯化物、氟化物、硅酸盐和钠离子的存在会影响应力腐蚀开裂的风险。见附件B了解有关本文件一般用途的更多信息。

This document specifies the equipment and procedures for determining trace quantities of the water-soluble chloride, fluoride, silicate and sodium ions in an aqueous extract of the product. It also describes a procedure for the determination of the pH of the aqueous extract. It is applicable to thermal insulating products.NOTE      The determination of these parameters can be relevant for thermal insulating products intended for application to stainless austenitic steel surfaces. The presence of chloride, fluoride, silicate and sodium ions under certain conditions can influence the risk of stress corrosion cracking. See Annex B for further information on general use of this document.

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