YS/T 1154-2016 Crude Selenium

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 YS/T 87-1995 The analysis sampling methods for gold and silver in copper and lead electrolytic anode tarnish YS/T 87-2009 Methods for sampling and sample preparation of copper anode slime and lead anode slime YS/T 1084.1-2015 Methods for chemical analysis of crude selenium—Part 1:Determination of gold content—Fire assay gravimetric and flame atomic absorption spectrmetric method method YS/T 1084.2-2015 Methods for chemical analysis methods of crude selenium—Part 2:Determination of silver content—Flame atomic absorption spectrometric method YS/T 87-2021 YS/T 87-2021 Copper, lead anode tails sampling and preparation methods YS/T 1084.3-2018 YS/T 1084.3-2018 Chemical analysis methods for crude selenium - Part 3: Determination of selenium content - Reduction by hydrochloric acid and determination of selenium content using Na2S2O3 titration YS/T 1084.4-2024 "Coarse selenium chemical analysis method - Part 4: Determination of tellurium content by weight method" (English translation) YS/T 1084.5-2024 The Chemical Analysis of Rough Separate Part 5: Determination of Platinum and Palladium Content by Inductively Coupled Plasma Atomic Emission Spectroscopy