HJ 534-2009
Ambient air.Determination of ammonia.Sodium hypochlorite.salicylic acid spectrophotometry (English Version)

Standard No.

HJ 534-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

Professional Standard - Environmental Protection

Latest

HJ 534-2009

Replace

GB/T 14679-1993

Scope

This standard specifies the sodium hypochlorite-salicylic acid spectrophotometric method for the determination of ammonia in ambient air. This standard is applicable to the determination of ammonia in ambient air, and also to the determination of ammonia in the air at the boundary of the odor source factory. The detection limit of this standard method is 0.1μg/10ml absorption solution. When the total volume of the absorption liquid is 10ml and the gas collection volume is 1~4L, the detection limit of ammonia is 0.025mg/m, the lower limit of determination is 0.10mg/m, and the upper limit of determination is 12mg/m. When the absorption liquid volume is 10ml and the sampling volume is 25L, the detection limit of ammonia is 0.004mg/m, and the lower determination limit is 0.016mg/m.

HJ 534-2009 history

• 2009 HJ 534-2009 Ambient air.Determination of ammonia.Sodium hypochlorite.salicylic acid spectrophotometry

HJ 534-2009 Ambient air.Determination of ammonia.Sodium hypochlorite.salicylic acid spectrophotometry has been changed from GB/T 14679-1993 Air quality. Determination of Ammonia. Sodium salicylate-sodium hypochlorite spectrophotometric method.