熔模铸造涂料性能试验方法 第4部分:pH试纸法测定酸度
Test method for properties of investment casting slurry -- Part 4: The pH test paper method for the determination of acidity
2004-09-01
HB 5351.5-2004
熔模铸造涂料性能试验方法 第5部分:pH计法测定酸度
Test method for properties of investment casting slurry -- Part 5: The pH-meter method for the determination of acidity