GB/T 20466-2006
Active
T/CHES 27-2019
Active
Group standards
T/CHES 27-2019 Water quality determination of ammonia nitrogen using automatic analysis of Nair-based spectrophotometric method
T/CHES 27-2019 Water quality determination of ammonia nitrogen using automatic analysis of Nair-based spectrophotometric method
Price:
$ 20.00
Basic Information
Standard Code:
T/CHES 27-2019
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for toxic substances in water environments
ICS Name:
\nChemical testing of water
Publish Date:
2019-03-01
Implement Date:
2019-05-01
Scope
Main technical content: This standard specifies the Nessler's reagent spectrophotometric method for the automatic analysis of ammonia nitrogen in water. This standard is applicable to the determination of ammonia nitrogen in surface water, groundwater, domestic drinking water, domestic sewage, and industrial wastewater. When directly sampling, the detection limit of this method is 0.02 mg/L, and the measurement range is 0.08 mg/L to 2.00 mg/L; when distilling and sampling, the detection limit of this method is 0.05 mg/L, and the measurement range is 0.20 mg/L to 8.00 mg/L. When the sample concentration exceeds the measurement range, it should be measured after dilution.
Development Information
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