GB/T 3050-2000 Translated English of Chinese Standard (GBT3050-2000): Inorganic chemical products for industrial use. General method for determination of chloride content. Potentiometric method [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]This part of GB/T 30159 specifies two test methods for measuring stain resistance of textiles, namely liquid staining method and solid staining method; gives an evaluation index of stain resistance. This part applies to all types of textile fabrics and their products. According to the product type and purpose, it may select one or two methods. The test results, which are obtained by using different soils and methods, are not comparable. This part does not apply to coated fabrics for membrane structures. When the color of the specimen and the solid dirt are similar, it should not use the solid staining method for evaluation. |
Common terms and phrases
0.1 mol/L silver 0.2 mol/L sodium according to formula AgNO2 precipitation Appendix C normative Appendix D informative appropriate amount blue indicator solution Bromophenol blue indicator calculated as Cl Calibration calomel electrode Chemical Standardization Technical chloride content chloride in Cl chloride standard solution chloride standard titration complex with Ag+ corresponding potential value determination of chloride determination This Appendix dilute the 0.1 elimination method end point GB/T hydrogen peroxide Inorganic chemical products interfering substances jump at end last positive value measuring electrode mg/L mL or 9 mol/L potassium chloride mol/L silver nitrate National Chemical Standardization nitrate standard solution nitrate standard titration nitric acid solution pipette potassium chloride standard potential increment value potential jump Potentiometric method precipitation Formation preparation method products for industrial reagent reference electrode silver electrode silver nitrate standard silver-silver sulfide Sodium hydroxide solution just yellow standard solution taken standard titration solution Table B1 test solution volume of silver volumetric flask