Calibration Specification for Emulsified Asphalt Particle Ion Charge Tester:

Emulsified Asphalt Particle Ion Charge Tester JJG (Transportation) 115

Instrument calibration parameters:

DC voltage (1～10)V

Time (1～600)s

Length (1～150)mm

GRG METROLOGY, established in 2002, is a leading third-party metrology and testing listed company.

Focusing on industrial demands, GRG METROLOGY has expanded into new infrastructure, digital transformation, and essential living industries, providing comprehensive one-stop services for the supply chains of strategic sectors such as special equipment, aviation, integrated circuits, low-altitude economy, new energy, 5G communications, intelligent connected vehicles, software and information technology, and life sciences.

GRG METROLOGY's qualifications are at the industry's leading level, with the total number of CNAS-accredited projects ranking first in the industry for five consecutive years. It holds CNAS accreditation for 45,053 parameters, CMA accreditation for 65,113 parameters, and CATL accreditation for 7,922 parameters.

GRG METROLOGY's headquarters and subsidiaries have received nearly 500 industry and social organization authoritative accreditations and honors, including 22 high-tech enterprises.