GB/T 11225-1989
Abolished
T/QAS 071-2021
Active
Group standards
T/QAS 071-2021 Determination of Total Nitrogen in Brine using Kjeldahl method
T/QAS 071-2021 Determination of Total Nitrogen in Brine using Kjeldahl method
Price:
$ 20.00
Basic Information
Standard Code:
T/QAS 071-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Fertilizers and pesticides
ICS Name:
\nComprehensive water quality
Publish Date:
2021-11-16
Implement Date:
2021-12-16
Scope
Main technical content: This document specifies the method for determining the total nitrogen in brine. This document is applicable to the determination of total nitrogen in brine; the method's detection limit is 0.274mg/L. If a 10mL sample is taken for determination, the detection limit of total nitrogen is 1.096mg/L.
Development Information
Related Standards
GB/T 14552-1993
Replaced
GB/T 14552-1993 Water and soil quality—Determination of organophosphorus pesticides—Gas chromatography
GB/T 15503-1995
Active
GB/T 15503-1995 Water quality—Determination of vanadium—BPHA extraction spectrophotometric method
GB/T 15504-1995
Active
GB/T 15504-1995 Water quality—Determination of carbon disulfide—Diethylamine cupric acetate spectrophotometric method
GB/T 15505-1995
Active
GB/T 15505-1995 Water quality—Determination of selenium—Graphite furnace atomic absorption spectrometric method
GB/T 15506-1995
Abolished