HJ 749-2015 (English Version) PDF

Scope: This standard specifies the flame atomic absorption spectrophotometric method for the determination of total chromium in solid wastes and solid waste leach solutions. This standard is applicable to the determination of total chromium in solid waste and solid waste leachate. When measuring solid waste, the sample amount is 0.2 g, and the constant volume is S0 ml, the detection limit of this method is 8 mg/kg, and the lower limit of determination is 30 mgy/kg. For the determination of solid waste leachate, when the constant volume is S0 ml, the detection limit of this method is 0.03 mgIL, and the lower limit of determination is 0.12 mg/L.

HJ 749-2015 Referenced Document

HJ 491 Determination of copper, zinc, lead, nickel, chromium in soils and sediments by flame atomic absorption spectrophotometry*， 2019-05-12 Update
HJ 557 Solid waste.Extraction procedure for leaching toxicity.Horizontal vibration method
HJ/T 20 Technical specifications on sampling and sample preparation from industry solid waste
HJ/T 298 Technical specifications on identification for hazardous waste
HJ/T 299 Solid waste. Extraction procedure for leaching toxicity. Sulphuric acid & nitric acid method
HJ/T 300 Solid waste. Extraction procedure for leaching toxicity. Acetic acid buffer solution method

2015 HJ 749-2015 Solid Waste-Determination of total chromium -Flame atomic absorption spectrometry