Table of Contents

1 Scope
2 Normative references
3 Common matters
4 Classification of analytical methods and outline
5 Taking method of sample gas
5.1 Case of 4-amino-3-hydrazino-5mercapto-1,2,4-triazol
absorptiometry
5.2 Case of 2,4-dinitrophenylhydrazine collection - gas
chromatography (collection in absorption bottle) and
2,4-dinitrophenylhydrazine collection - high performance
liquid chromatography (collection in absorption bottle)
5.3 Case of 2,4-dinitrophenylhydrazine collection - gas
chromatography (collection in cartridge) and
2,4-dinitrophenylhydrazine collection - high performance
liquid chromatography (collection in cartridge)
5.4 Gas sampling volume
6 Method of determination
6.1 4-amino-3-hydrazino-5-mercapto-1,2,4-triazol absorptiometry
(AHMT absorptiometry)
6.2 2,4-dinitrophenylhydrazine collection - gas chromatography
(collection in absorption bottle DNPH-GC method)
6.3 2,4-dinitrophenylhydrazine collection - gas chromatography
(cartridge collection DNPH-GC method)
6.4 2,4-dinitrophenylhydrazine collection - high performance
liquid chromatography (collection in absorption bottle
HPLC method)
6.5 2,4-dinitrophenylhydrazine collection - high performance
liquid chromatography (collection in cartridge DNPH-HPLC
method)
6.6 4-amino-3-hydrazino-5-mercapto-1,2,4-triazol absorption -
automated analysis (AHMT automated analysis method)
7 Rounding off of analysis value
Attached Table 1 Normative references
Attached Table 2 Saturated stream pressure
Annex (normative) 4,5-dihydroxy-2,7-napthalene disulfonic acid
absorptiometry (chromotropic acid absorptiometry)

Abstract

Defines the methods of analyzing formaldehyde in flue gas.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Japanese Standards Association
Pages
ISBN
Supersedes	JIS K 0303:2004