Gel Chromatograph Calibration Specification:

Gel Chromatograph Verification Regulation JJG 342

Instrument Calibration Parameters:

Molecular Weight Dextran: 1kg/mol～1Mg/mol, Polystyrene: 10kg/mol～1Mg/mol

GRG Metrology & Test was established in 2002 and is a leading listed company in third-party metrology and testing.

Focusing on industrial demands, GRG Metrology & Test has expanded into new infrastructure, digital transformation, and industries related to daily necessities. It provides comprehensive one-stop services for the entire supply chain in 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 & Test's qualifications are at the industry-leading level, with the total number of CNAS-accredited items ranking first in the industry for five consecutive years. It has CNAS accreditation for 45,053 parameters, CMA accreditation for 65,113 parameters, and CATL accreditation for 7,922 parameters.

GRG Metrology & Test's headquarters and subsidiaries have obtained nearly 500 industry and social organization authoritative accreditations and honors, including 22 high-tech enterprises.