This standard specifies the test method for the ventilation capacity of functional refractory materials. This standard is applicab

This standard specifies the definition, test principle, equipment and materials, specimens, test procedures, result calculation an

This standard specifies the gas chromatography determination principle, reagents and materials, instruments and equipment, test co

This standard specifies the method summary, test instruments and equipment, test steps, test result calculation and error for the

This standard specifies the method summary, equipment and materials, specimens, viscosity agent calibration, test steps, result ca

This standard applies to bending and reverse bending tests of steel bars for reinforced concrete. The purpose of the reverse bendi

This standard specifies the technical requirements, test methods, inspection rules and pre-assembly and inspection methods of ordi

This standard specifies the principles, instruments and equipment and test procedures for the preparation of carbon paste test sam