This standard specifies the model, specification, technical requirements, test methods, inspection rules, marking, packaging and s

This standard specifies the determination of water alkalinity by acid titration. This standard is applicable to the determination

This standard specifies the determination of chloride ions in water by silver nitrate titration. This standard is applicable to th

This standard specifies the grade name, code and fixed carbon range of coal. This standard applies to the fixed carbon classificat

This standard specifies the grade name, code and thermal stability range of coal thermal stability classification. This standard a

This standard specifies the technical requirements and inspection rules for the muffle furnace temperature controller for coal ana

This standard specifies the basic requirements for the classification and assessment of coal laboratories. This standard is applic

This standard specifies the definition, type and parameters, requirements, test methods, inspection rules, marking, packaging, tra