This standard applies to on-site analysis and inspection of refractory powders for investment casting.
HB 5351.7-1986 history
2004HB 5351.7-2004 Test method for properties of investment casting slurry-Part 7:The torque balance sedimentation analytical method for the determination of refractory powder granularity
1986HB 5351.7-1986 Method for determination of particle size of refractory powder for investment casting (torque balance sedimentation analysis method)