Standard No.:	HJ 674-2013
English Name:	Water quality－Determination of hydrazine and monomethyl hydrazine by p-Dimethylaminobenzaldehyde spectrophotometric method
Chinese Name:	水质 肼和甲基肼的测定 对二甲氨基苯甲醛分光光度法
Professional Classification:	HJ    Professional Standard - Environment
ICS Classification:	13.060.01 13.060.01    Water quality in general 13.060.01
Issued by:	ZHB
Issued on:	2013-11-21
Implemented on:	2014-2-1
Status:	valid
Superseding:	GB/T 14375-1993 quality. Determination of monomethyl hydrazine. p - Dimethylaminobenzaldegyde spectrophotometric method
Language:	English
File Format:	PDF
Word Count:	7000 words
Price(USD):	210.0
Delivery:	via email in 1~3 business day

本标准规定了测定水中肼和甲基肼的对二甲氨基苯甲醛分光光度法。本标准分为两部分：
第一部分为对二甲氨基苯甲醛分光光度法测定肼，第二部分为对二甲氨基苯甲醛分光光度法测定甲基肼。
本标准规定了测定水中肼的对二甲氨基苯甲醛分光光度法。
本标准适用于水和工业废水中肼的测定。
按取水样50mL，采用5cm 吸收池计算，本方法检测限以肼计为0.003 mg/L，定量测定范围为（0.012~0.240）mg/L。如采用1cm 吸收池，检出限为0.015 mg/L，定量测定范围为（0.060~1.00）mg/L。水样中肼的浓度大于1.00 mg/L 时，可稀释后测定。