GB/T 11225-1989
Abolished
T/QAS 056-2021
Active
Group standards
T/QAS 056-2021 Brine determination of calcium and magnesium using potentiometric titration method
T/QAS 056-2021 Brine determination of calcium and magnesium using potentiometric titration method
Price:
$ 20.00
Basic Information
Standard Code:
T/QAS 056-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Metal chemical analysis methods
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 calcium and magnesium in brine. This document is applicable to the determination of calcium and magnesium in brine; the minimum detection limit of calcium is 0.051 mg, and the minimum detection limit of magnesium is 0.037 mg. If a 10 mL sample is measured, the detection limit of calcium is 5.1 mg/L, and the minimum detection concentration of magnesium is 3.7 mg/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