DZ/T 0064.63-2021 Methods of analysis of groundwater quality - Part 63: Determination of silicic acid by silicon molybdenum blue spectrophotometric method (English Version)
1970DZ/T 0064.63-2021 Methods of analysis of groundwater quality - Part 63: Determination of silicic acid by silicon molybdenum blue spectrophotometric method
1993DZ/T 0064.63-1993 Groundwater Quality Testing Method for Determination of Silicic Acid by Silicon Molybdenum Blue Colorimetric Method