This standard specifies of the general methods using Karl Fischer coulometric titration method and electrolytic method for the determination of moisture.
This standard is applicable to the determination of moisture in fluorinated olefins for refrigerant use,electrolytic method is not applicable to fluorinated olefins for low pressure refrigerants use.
定价: 288元 / 折扣价: 245 元 加购物车
This standard specifies the principle,the sampling,the test method,the allowable error of the general method using titration for the determination of acidity in fluorinated olefins for refrigerant use.
This standard is applicable to the determination of acidity in fluorinated olefins for low,medium,and high pressure refrigerants use.The sensitivity of this method is 0.000 005%.
定价: 288元 / 折扣价: 245 元 加购物车
This standard specifies the sampling,the principle,the test method and the allowable error of the general method using the loss of mass on drying method for the determination of evaporation residues in fluorinated olefins for refrigerants use.
This standard is applicable to the determination of evaporation residues in fluorinated olefins for low,medium,and high pressure refrigerants use.The sensitivity of this methed is 0.000 1%.
定价: 288元 / 折扣价: 245 元 加购物车
This standard specifies the samples, the test methods and the result expressions of the general method using gas chromatography for the determination of non-condensable gas (NCG) in fluorinated olefins for refrigerant use.
This standard is applicable to the determination of NCG in medium and high pressure fluorinated olefins refrigerants.The sensitivity of this method is 0.02% by volume.
定价: 312元 / 折扣价: 266 元 加购物车