Standard No.:	GB/T 609-2006
English Name:	Chemical Reagent - General Method for the Determination of Total Nitrogen
Chinese Name:	化学试剂 总氮量测定通用方法
Chinese Classification:	G60    Chemical reagent in general
Professional Classification:	GB    National Standard
ICS Classification:	71.040.30 71.040.30    Chemical reagents 71.040.30
Issued by:	AQSIQ; SAC
Issued on:	2006-11-03
Implemented on:	2007-6-1
Status:	superseded
Superseded by:	GB/T 609-2018 Chemical reagent—General method for the determination of total nitrogen GB/T 609-2018/XG1-2024 Chemical reagent—General method for the determination of total nitrogen, includes Amendment 1
Superseded on:	2024-4-25
Superseding:	GB/T 609-1988 Chemical reagent-General method for the determination of total nitrogen
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	194.00
Delivery:	via email in 1 business day

This national standard specifies the general method of chemically converting inorganic nitrogen compound to ammonium salt and doing visual colorimetric estimation with Nessler's reagent.

This standard is applicable to the determination of trace inorganic nitrogen compound (including nitrates, nitrite and ammonium salt). The determination range is 0.05~0.8 μg/mL (N).