This document specifies the determination method of the content of calcium and magnesium in industrial circulating cooling water and the content of calcium and magnesium in the scale of the boiler water system or circulating water system - atomic absorption spectrometry. This document is applicable to the determination of calcium content of 0.5 mg/L~75 mg/L and magnesium content of 0.1 mg/L to 50 mg/L in industrial circulating cooling water; it is applicable to the determination of calcium content ≥0.005% and magnesium content ≥0.005% in scale. This document is also applicable to the determination of calcium and magnesium content in the scale of various other industrial water, raw water, and water systems, as well as calcium content in phosphorus-zinc pre-film solution for industrial circulating refrigeration.
Basic Data
Standard ID
GB/T 14636-2021 (GB/T14636-2021)
Description (Translated English)
Determination of calcium and magnesium in industrial circulating cooling water and scale - Atomic absorption spectrometric method
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
G76
Word Count Estimation
9,927
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
