YS/T 1109-2016 Silicon metal powder for silicone production

GB/T 2881-2014 Silicon metal SN/T 2720 GB/T 1480-1995 Determination of particle size for metallic powders—Dry sieving GB/T 1480-2012 Metallic powders—Determination of particle size by dry sieving GB/T 6003.1-1997 Test sieves of metal wire cloth GB/T 6003.1-2012 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.1-2022 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6679-2003 General rules for sampling solid chemical products GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 14849.1-1993 Silicon metal—Determination of iron content—1,10-Phenanthroline spectrophotometric method GB/T 14849.1-2007 Methods for chemical analysis of silicon metal—Part 1:Determination of iron content—1,10-Phenanthrolion spectrophotometric method GB/T 14849.1-2020 Methods for chemical analysis of silicon metal—Part 1:Determination of iron content GB/T 14849.2-1993 Silicon metal—Determination of aluminum content—Chrome azurol S spectrophotometric method GB/T 14849.2-2007 Methods for chemical analysis of silicon metal—Part 2:Determination of aluminum content—Chrome azurol S spectrophotometric method GB/T 14849.3-1993 Silicon metal—Determination of calcium content GB/T 14849.3-2007 Methods for chemical analysis of silicon metal—Part 3:Determination of calcium content GB/T 14849.3-2020 Methods for chemical analysis of silicon metal—Part 3:Determination of calcium content GB/T 14849.4-2008 Methods for chemical analysis of silicon metal—Part 4:Determination of elements content Inductively coupled plasma atomic emission spectrometric method GB/T 14849.4-2014 Methods for chemical analysis of silicon metal—Part 4:Determination of impurity contents—Inductively coupled plasma atomic emission spectrometric method GB/T 14849.5-2010 Chemical analysis of slion metal—Part 5:Determination of elements content—Analysis using an X-ray fluorescence method GB/T 14849.5-2014 Methods for chemical analysis of silicon metal—Part 5:Determination of impurity contents—X-ray fluorescence method GB/T 14849.6-2014 Methods for chemical analysis of silicon metal—Part 6:Determination of carbon—Infrared absorption method GB/T 14849.7-2015 Methods for chemical analysis of silicon metal—Part 7:Detemination of phosphorus content—Phosphorus molybdenum blue spectrophotometry GB/T 14849.8-2015 Methods for chemical analysis of silicon metal—Part 8:Determination of copper content—Atomic absorption spectrometric method GB/T 14849.9-2015 Methods for chemical analysis of silicon metal— Part 9:Determination of titanium content— Diantipyryl methane spectrophotometry GB/T 14849.10-2016 Methods for chemical analysis of silicon metal—Part 10:Determination of mercury content—Atomic fluorescence spectrometry method GB/T 14849.11-2016 Methods for chemical analysis of silicon metal—Part 11:Determination of chromium content—1,5-Diphenylcarbohydrazide spectrophotometric method GB/T 1480-2025 Metallic powders—Determination of particle size by dry sieving