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## HJ 504-2009 ambient air-determination of ozone-indigo disulphonate spectrophotometry

Standard Number:  HJ 504-2009
Title:  ambient air-determination of ozone-indigo disulphonate spectrophotometry
Language:  Simplified Chinese
Replacing Standard:  GB/T 15437-1995

Publication Date:  2009/10/20
Execute Date:  2009/12/1
International Classification for Standards (ICS)ENVIRONMENT. HEALTH PROTECTION. SAFETY>>Air quality
Publisher:   Environmental Protection Standards
Price:12.00
Number of Pages:10

Description:This standard stimulates the determination of ozone in the air of indigo disulfonic acid sodium spectrophotometric method.
This standard applies to the environment, the determination of ozone in the air. Relatively closed environment, such as interior, car, etc.) on the determination of ozone in the air can also be reference standard.
When the sampling volume of 30 l, this standard was developed for the determination of ozone in the air detection limit of 0.010 mg/m < 3 > superscript, determination of lower limit of 0.040 mg/m (superscript 3 >.
When the sampling volume of 30 L, absorbing liquid mass concentration of 2.5 mu g/ml or 5.0 mu g/ml, the determination of upper limit were 0.50 mg/m (superscript 3 > or < superscript 3 > 1.00 mg/m. When the concentration of ozone in the air quality more than the limit, can reduce the sampling volume appropriately.
Cross References:GB/T 15437-1995
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  937KB
Tile in English:  ambient air-determination of ozone-indigo disulphonate spectrophotometry