Standard No.:	GB/T 14637-2021
English Name:	Determination of copper,iron and zinc in industrial circulating cooling water and scale—Atomic absorption spectrometric method
Chinese Name:	工业循环冷却水及水垢中铜、铁、锌的测定　原子吸收光谱法
Chinese Classification:	G76    Basic standards and general methods for water treatment agent
Professional Classification:	GB    National Standard
ICS Classification:	71.040.40 71.040.40    Chemical analysis 71.040.40
Issued by:	SAMR; SAC
Issued on:	2021-08-20
Implemented on:	2022-3-1
Status:	valid
Superseding:	GB/T 14637-2007 Industrial circulating cooling water and scale—Determination of copper zinc—Atomic absorption spectrometric method
Language:	English
File Format:	PDF
Word Count:	5500 words
Price(USD):	165.00
Delivery:	via email in 1~3 business day

本文件规定了工业循环冷却水中铜、铁、锌含量及锅炉水系统或循环水系统的水垢中铜、铁、锌含量的测定方法--原子吸收光谱法。
本文件适用于工业循环冷却水中铜含量为0.1mg/L～20mg/L、铁含量为0.1mg/L～20mg/L、锌含量为0.1mg/L～20mg/L；水垢中铜含量≥0.005%、铁含量≥0.01%、锌含量≥0.005%的测定。　　
本文件也适用于锅炉用水中铜、铁、锌的测定及其他工业用水、原水和用水系统的水垢中铜、铁、锌含量的测定。本文件也适用于工业循环冷却水用磷锌预膜液中锌含量的测定。