JIS K0071-4-1998 《Testing methods for colour of chemical products -- Part 4: ASTM colour》 Related products

The JIS K0071-4-1998 standard is the fourth part of the test method for the determination of the color of chemical products, which mainly involves the application of the ASTM Color standard. This part specifies in detail how to use the ASTM standard to measure and evaluate the color of chemical products. Through this standard, the conformity and comparability of the Color test of chemical products can be ensured in different production batches and different application scenarios. The standard covers the requirements of Color testing instruments, sample preparation, test procedures and data processing for chemicals, providing the industry with scientific and accurate methods for evaluating Color. In addition, the implementation of the standard helps to improve the quality control of products and promote the competitiveness of chemical products in the market.