GB/T 11225-1989
Abolished
T/GXAS 497-2023
Active
Group standards
T/GXAS 497-2023 Water quality: Determination of hexavalent chromium using field rapid spectrophotometric method
T/GXAS 497-2023 Water quality: Determination of hexavalent chromium using field rapid spectrophotometric method
Price:
$ 20.00
Basic Information
Standard Code:
T/GXAS 497-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Environmental protection
ICS Name:
\nComprehensive water quality
Publish Date:
2023-06-15
Implement Date:
2023-06-21
Scope
Scope: This document specifies a rapid on-site spectrophotometric method for the determination of hexavalent chromium in water. This document is applicable to the rapid on-site determination of hexavalent chromium in surface water, groundwater, domestic wastewater, and seawater, but not for industrial wastewater. When the sample volume is 10 mL and the detection optical path is 30 mm, the detection limit of this method is 0.005 mg/L, the lower limit of determination is 0.020 mg/L, and the upper limit of determination is 0.500 mg/L. If the sample concentration exceeds the upper limit of determination, it should be diluted before measurement. Main technical content: This document specifies a rapid on-site spectrophotometric method for the determination of hexavalent chromium in water. This document is applicable to the rapid on-site determination of hexavalent chromium in surface water, groundwater, domestic wastewater, and seawater, but not for industrial wastewater. When the sample volume is 10 mL and the detection optical path is 30 mm, the detection limit of this method is 0.005 mg/L, the lower limit of determination is 0.020 mg/L, and the upper limit of determination is 0.500 mg/L. If the sample concentration exceeds the upper limit of determination, it should be diluted before measurement.
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