HB 5351.5-2004 《Test method for properties of investment casting slurry-Part 5:The pH-meter method for the determination of acidity》 Related products

The standard specifies the method for testing the influence of chemical solutions in the chilling down system on automotive organic coatings, and is applicable to chilling down liquids, rust inhibitors, etc.; it cites a number of standards as its components; the summary of the method is to contact chemical solutions and organic coatings at room temperature and check Appearance changes; the significance of the standard is to evaluate the influence of chemical solutions on the Coating surface; the instruments and materials required for testing include Glass droppers, Cold rolled steel plates, etc.