GB/T 321-1980
Replaced
T/HBJLXH 002-2025
Active
Group standards
\nCalibration Method for the Water Permeability Determination Instrument of Geotextiles T/HBJLXH 002-2025
T/HBJLXH 002-2025
Price:
$ 20.00
Basic Information
Standard Code:
T/HBJLXH 002-2025
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Integrated Metrology and Measurement
Publish Date:
2025-05-15
Implement Date:
2025-06-16
Scope
Main technical content: This document replaces T/HBJLXH 002-2022, "Calibration Method for Permeability Determination Instrument of Geotextile", and compared with T/HBJLXH 002-2022, "Calibration Method for Permeability Determination Instrument of Geotextile", apart from structural adjustments and editorial changes, the main technical changes are as follows: a) determining the graduation value of the steel ruler; b) determining the graduation value of the vernier caliper; c) determining the graduation value of the stopwatch; d) adding the standard instrument thermometer.