Standard No.:	GB/T 9727-2007
Chinese Name:	化学试剂 磷酸盐测定通用方法
English Name:	Chemical reagent—General method for the determination of phosphate
Professional Classification:	G60 Chemical reagent in general
Professional Classification:	GB National Standard
ICS Classification:	71.040.30 Chemical reagents
Issued by:
Issued on:	2007-12-18
Implemented on:	2008-04-01
Status:	VALID
Replace:	GB/T9727-1988 Chemical reagent--General method for the determination of phosphate
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	120 (USD)
Delivery:	via email in 1-3 business day

This national standard specifies the general method to determine the phosphate with extraction - phosphor molybdenum blueness colorimetric method.
This standard is applicable to the measurement of trace orthophosphate in chemical reagent. The determination range of spectrophotometry or visual colorimetry in butyl acetate is 0.2 - 2μg/mL (PO4).

下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件,其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准,然而,鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件,其最新版本适用于本标准。
GB/T602 化学试剂 杂质测定用标准溶液的制备(GB/T602-2002,ISO6353-1:1982,NEQ)
GB/T603 化学试剂 试验方法中所用制剂及制品的制备(GB/T603-2002,ISO6353-1:1982,NEQ)
GB/T6682 分析实验室用水规格和试验方法(GB/T6682-1992,neqISO3696:1987)
GB/T9721 化学试剂 分子吸收分光光度法通则(紫外和可见光部分)