GB/T 4698.3-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 3:Determination of silicon content—Molybdenum blue spectrophotometry (English Version)
2017GB/T 4698.3-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 3:Determination of silicon content—Molybdenum blue spectrophotometry
1996GB/T 4698.3-1996 Sponge titanium, titanium and titanium alloys--Determination of silicon content--Molybdenum blue spectrophotometric method