GB/T 5195.12-2016 Fluorite—Determination of arsenic content—Atomic fluorescence spectrometry

GB/T 5195.7-2016 Fluorspar—Determination of zinc content—Flame atomic absorption spectrophotometric method GB/T 5195.9-2016 Fluorspar—Determination of loss on ignition—Gravimetric method

GB/T 5195.12-2025 Methods for chemical analysis of fluorspar—Part 12:Determination of arsenic content

GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods 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 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12807-1991 Laboratory glassware—Graduated pipettes GB/T 12807-2021 Laboratory glassware—Graduated pipettes GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes GB/T 21191-2007 Atomic fluorescence spectrometer GB/T 22564-2008 Fluorspar—Sampling and sample preparation