This document specifies the infrared absorption method for the determination of carbon content in ferrotungsten. This document applies to the determination of carbon content in ferrotungsten. Measuring range (mass fraction): 0.010%~1.00%.
GB/T 7731.10-2021 Referenced Document
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 7731.10-2021 history
2021GB/T 7731.10-2021 Ferrotungsten—Determination of carbon content—Infrared absorption method
1988GB/T 7731.10-1988 Methods for chemical analysis of ferrotungsten--The infrared absorption method for the determination of carbon content