GB/T 24192-2009
Active
GB/T 31948-2015
Active
National standards
GB/T 31948-2015 Chromium ores—Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 31948-2015 Chromium ores—Determination of mercury content—Solid sampling and direct mercury analysis method
Basic Information
Standard Code:
GB/T 31948-2015
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nChromite ore
ICS Name:
\nChromite ore
Publish Date:
2015-09-11
Implement Date:
2016-06-01
Pages:
9 pages
Scope
This standard specifies the method for determining the mercury content by direct solid sampling measurement.
This standard is applicable to the determination of mercury content in chromite ore, with a measurement range of 0.001 μg/g to 5.00 μg/g.
Development Information
Referenced Standards
GB/T 602-2002 Chemical reagent—Preparations of standard solutions for impurity
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 24243-2009 Chromium ores—Increment sampling
GB/T 29517-2013 Method for manual sample preparation of chrome ores in bulk
JJG 548-2004 Mercury Analyzers
JJG 548-2018 Mercury Analyzers
GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity
Related Standards
GB/T 24193-2009
Active
GB/T 24193-2009 Chromium ores and concentrates—Determination of aluminium,iron,magnesium and silicon content—Inductively coupled plasma atomic emission spectrometry
GB/T 24220-2009
Active
GB/T 24220-2009 Chromium ores—Determination of hygroscopic moisture content in analytical samples—Gravimetric method
GB/T 24221-2009
Active
GB/T 24221-2009 Chromium ores—Determination of calcium and magnesium contents—EDTA titrimetric method
GB/T 24222-2009
Active
GB/T 24222-2009 Chromium ores—Determination of moisture of lots
GB/T 24223-2009
Active