GB/T 36021-2018 Translated English of Chinese Standard. (GBT 36021-2018, GB/T36021-2018, GBT36021-2018): The assessment method of the heavy metal Sb, As, Ba, Se and Cr (VI) in furniturehttps://www.chinesestandard.net, 14/09/2018 - 17 من الصفحات This Standard specifies the inspection and assessment methods of the soluble heavy metal Sb, As, Ba, Se, and Cr (VI) in furniture. This Standard applies to furniture products whose surface is coating, veneer layer, and soft covering. This Standard does not apply to furniture products with ceramic enamel or metal glaze on the surface, and all furniture products which are melted or fused in glass, glaze, or ceramic enamel, as well as furniture products with metallic electroplated coating. |
عبارات ومصطلحات مألوفة
0.07 mol/L hydrochloric 2.0 g accurate accuracy is 0.1 accurate to 0.1 Analytical instruments base material calibration curve centrifugal capacity Chromatographic content of Cr(VI content of soluble continuously shake determination dihydrogen phosphate dihydrate Diphenylcarbazide Disodium hydrogen phosphate distilled water frequency of 100 furniture products GB/T heavy metal Sb hydrochloric acid solution inductively coupled plasma LET stand liter mg/L methanol Method milligrams mL beaker mL of developer mL of phosphoric mol/L hydrochloric acid Nitric acid oscillation frequency pH value phosphoric acid solution PIPETTE 20 mL prepared sample protected from light provisions r/min to continuously Reagents room temperature sample and 50 sample solution series of standard shaking the mixture Simulated acidic sweat Simulated gastric acid sodium chloride Sodium dihydrogen phosphate sodium hydroxide soluble heavy metal solution PIPETTE 20 spectrophotometer Standard stock solution standard working solutions temperature of 37±2)°C temperature-controlled water bath test concentration uniformly mixed Volumetric flask watch glass water bath shaker