NB/T 11889.11-2025 Hydroelectric Engineering Concrete Test Instrument Equipment Calibration Regulations Part 11: Concrete Pressure and Effluent Extraction Apparatus

NB/T 11889.1-2025 Hydroelectric engineering concrete testing equipment calibration regulations - Part 1: General rules NB/T 11889.2-2025 Hydroelectric Engineering Concrete Test Instrument Equipment Calibration Regulations Part 2: Volume Cylinders NB/T 11889.3-2025 Hydropower Engineering Concrete Test Instrument Equipment Calibration Regulations Part 3: Needle and Sheet Standard Gauges NB/T 11889.4-2025 Hydroelectric Engineering Concrete Test Instrument Equipment Calibration Regulations Part 4: Alkali-Activated Test Chamber NB/T 11889.5-2025 Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects Part 5: Mixers for Concrete Testing NB/T 11889.6-2025 Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects - Part 6: Vibration Table for Concrete Testing NB/T 11889.7-2025 Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects Part 7: Concrete Test Molds NB/T 11889.8-2025 Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects Part 8: Concrete Slump Tester NB/T 11889.9-2025 Hydropower Engineering Concrete Test Instrument Equipment Calibration Regulations - Part 9: Concrete Vicat Viscosity Meter NB/T 11889.10-2025 Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects Part 10: Mortar Consistency Testers NB/T 11889.12-2025 Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects Part 12: Pneumatic Concrete Air Content Determination Instrument NB/T 11889.13-2025 Hydroelectric Engineering Concrete Test Instrument Equipment Calibration Regulations Part 13: Concrete Penetration Resistance Instruments NB/T 11889.14-2025, Calibration Procedures for Concrete Testing Instruments and Equipment in Hydropower Projects - Part 14: Concrete Standard Curing Facilities NB/T 11889.15-2025 Hydroelectric Engineering Concrete Test Instruments and Equipment Calibration Regulations Part 15: Microcaliper NB/T 11889.16-2025 Hydropower Engineering Concrete Test Instrument Equipment Calibration Regulations Part 16: Permeability Tester for Concrete NB/T 11889.17-2025 Hydroelectric Engineering Concrete Test Instrument Equipment Calibration Regulations Part 17: Rapid Freeze-thaw Test Machine for Concrete NB/T 11889.18-2025, Specifications for the Calibration of Concrete Testing Instruments and Equipment for Hydropower Projects - Part 18: Concrete Dynamic Elastic Modulus Measuring Instrument NB/T 11889.19-2025 Hydroelectric Engineering Concrete Test Instrument Equipment Calibration Regulations Part 19: Determination of Thermal Parameters of Concrete Thermometer NB/T 11889.20-2025 The specification for the calibration of concrete testing equipment for hydropower projects - Part 20: Ultrasonic testing equipment for concrete detection