GB/T 14637-2021 Active
GB/T 14637-2021 Determination of copper,iron and zinc in industrial circulating cooling water and scale—Atomic absorption spectrometric method
Abstract
This document specifies the determination method of copper, iron, and zinc content in industrial circulating cooling water and the scale in boiler water systems or circulating water systems using atomic absorption spectrometry. This document is applicable to the determination of copper content in industrial circulating cooling water ranging from 0.1 mg/L to 20 mg/L, iron content ranging from 0.1 mg/L to 20 mg/L, and zinc content ranging from 0.1 mg/L to 20 mg/L. It is also applicable to the determination of copper, iron, and zinc content in scale, with copper content ≥ 0.005%, iron content ≥ 0.01%, and zinc content ≥ 0.005%. This document is also applicable to the determination of copper, iron, and zinc content in boiler water and other industrial water, raw water, and scale in water systems, as well as the determination of zinc content in phosphorus-zinc pre-coating solutions used in industrial circulating cooling water.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 14637-2021 |
| CCS | Basic standards and general methods for water treatment agents |
| ICS | Chemical analysis |
| Implement Date | 2022-03-01 |