GB/T 6730.60-2005 Iron ores—Determination of nickel content—Flame atomic absorption spectrometric method

GB/T 6730.59-2005 Iron ores—Determination of manganese content—Flame atomic absorption spectrometric method GB/T 6730.61-2005 Iron ores—Determination of carbon and sulfur content—High frequency combustion with infrared absorption method GB/T 6730.62-2005 Iron ores—Determination of calcium,silicon,manganese,titanium,phosphorus magnesium,aluminium and barium content—Wavelength dispersive X-ray fluorescence spectrometric method

GB/T 6730.60-2022 Iron ores—Determination of nickel content—Flame atomic absorption spectrometric 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 6730.1-1986 Methods for chemical analysis of iron ores—Preparation of predried test samples for chemical analysis GB/T 6730.1-2016 Iron ores—Preparation of predried test samples for chemical analysis GB/T 10322.1-2000 Iron ores—Sampling and sample preparation procedures GB/T 10322.1-2014 Iron ores—Sampling and sample preparation procedures GB/T 10322.1-2023 Iron ores—Sampling and sample preparation procedures GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes

ISO 9685:1991