GB 8969-1988 English Version, GB 8969-1988 Air quality; Determination of nitrogen oxides in ambient air; Griess-saltzman method (English Version)

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GB 8969-1988 Air quality; Determination of nitrogen oxides in ambient air; Griess-saltzman method (English Version)
Standard No.:	GB 8969-1988	Status:	superseded remind me the status change Email:
Language:	English	File Format:	PDF
Word Count:	1500 words	Price(USD):	45.0 remind me the price change Email:
Implemented on:	1988-8-1	Delivery:	via email in 1~3 business day

Standard No.:	GB 8969-1988
English Name:	Air quality; Determination of nitrogen oxides in ambient air; Griess-saltzman method
Chinese Name:	空气质量氮氧化物的测定盐酸萘乙二胺比色法
Chinese Classification:	Z15 Analysis methods for toxic substances in atmosphere
Professional Classification:	GB National Standard
ICS Classification:	13.040.20 13.040.20 Ambient atmospheres 13.040.20
Issued by:	MEP
Issued on:	1988-03-26
Implemented on:	1988-8-1
Status:	superseded
Superseded by:	HJ 479-2009 Ambient air - Determination of nitrogen oxides - N-(1-naphthyl) ethylene diamine dihydrochloride spectrophotometric method
Superseded on:	2009-11-1
Abolished on:	2009-11-01
Language:	English
File Format:	PDF
Word Count:	1500 words
Price(USD):	45.0
Delivery:	via email in 1~3 business day

Referred in GB 8969-1988:

*GB/T 39498-2020 Guidelines for the use and control of key chemical substances in consumer product
*GB/T 39514-2020 Terminology,defination,identification of biobased materials
*GB/T 39361-2020 Discharge requirements for cooling seawater
*GB/T 39263-2020 Road vehicles—Advanced driver assistance systems—Terms and definitions
*GB/T 39172-2020 Non-steel wire rope suspension means for lifts
*GB/T 34370.11-2020 Nondestructive testing of amusement equipments—Part 11:Ultrasonic guided wave testing
*DBJ/T 15-151-2019 Specification for Performance-based Seismic Design of Reinforced Concrete Building Structure
*DBJ/T 15-38-2019 Technical code for ground treatment of buildings
*DBJ∕T15-20-2016
*DBJ/T 15-81-2011 Code for fire resistance design of concrete structures in buildings
*GB/T 39366-2020 Leather—Tests for colour fastness—Colour fastness to crocking
*GB/T 12604.5-2020 Non-destructive testing—Terminology—Magnetic particle testing

Standard

GB 8969-1988 Air quality; Determination of nitrogen oxides in ambient air; Griess-saltzman method (English Version)
Standard No.	GB 8969-1988
Status	superseded
Language	English
File Format	PDF
Word Count	1500 words
Price(USD)	45.0
Implemented on	1988-8-1
Delivery	via email in 1~3 business day

Detail of GB 8969-1988

Standard No.

English Name

Chinese Name

Chinese Classification

Professional Classification

ICS Classification

Issued by

Issued on

Implemented on

Status

Superseded by

Superseded on

Abolished on

Superseding

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Price(USD)

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Introduction of GB 8969-1988

本方法适用于大气中氮氧化物的测定，检出限为0.05W9/5mL，可测定大气中氮氧化物浓度范围为:0.01一20 mg/ m3。大气中二氧化硫浓度为氮氧化物浓度的10倍时，对氮氧化物的测定无干扰，30倍时，使颜色有少许减褪，但在环境大气中，较少遇到这种情况。臭氧浓度为氮氧化物浓度5倍时，对氮氧化物的测定略有干扰，在采样后3h，使试液呈现微红色。过氧乙酞硝酸醋(PAN)使试剂显色而干扰，在一般环境大气中PAN浓度甚低，不会导致显著误差。

Contents of GB 8969-1988

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Keywords:
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