GB/T 214-2007 Translated English of Chinese Standard. (GBT 214-2007, GB/T214-2007, GBT214-2007): Determination of Total Sulfur in CoalThis Standard specifies the method principle, reagents and materials, apparatus, test procedures, results calculation and precision, etc. of the Eschka method, coulometric titration, high temperature combustion neutralization method for the determination of sulfur in coal. For the arbitration analysis, the Eschka method shall be taken. |
Contents
3 | |
Scope | 5 |
Coulometric Titration Method | 8 |
High Temperature Combustion Neutralization Method | 12 |
Test Report | 18 |
Common terms and phrases
absorption bottle acid GB/T acid standard solution amount of sodium barium chloride barium sulfate chemically pure coal reference material combustion boat combustion neutralization method combustion tube constant temperature zone consumed amount Coulomb integrator Determination of Total dissolve distilled water Drinox Edition electrolytic cell electromagnetic stirrer eqv ISO Eschka method filter paper g/mmol high temperature combustion high temperature constant high temperature furnace hydrogen peroxide hydroxide standard solution layer of tungsten less than 0.2mm mass of coal method as follows methyl orange mixed indicator Modify and supplement mol/L molar mass muffle furnace oxygen phenolphthalein potassium hydrogen phthalate potassium iodide Reagents and materials Result calculation rubber stopper sodium carbonate purity sodium hydroxide GB/T sodium hydroxide standard St,ad standard substance sulfur analyzer Sulfur in Coal sulfur mass fraction sulfuric acid standard T-shaped tube temperature combustion neutralization temperature constant temperature titer of sodium total sulfur content total sulfur mass tubular high temperature tungsten trioxide