This standard specifies the requirements for the selection of production areas of pollution-free food field crops, ambient air quality, irrigation water quality, soil environmental quality, sampling and testing methods. This standard applies to pollution-free food field dry-fed grain crop production areas.
NY 5332-2006 Referenced Document
GB/T 6920 Water quality--Determination of pH value--Glass electrode method
GB/T 7467 Water quality--Determination of chromium(6)--1.5 Diphenylcarbahydrazide spectrophotometric method
GB/T 7468 Water quality--Determination of total mercury--Cold atomic absorption spectrophotometry
GB/T 7471 Water quality--Determination of cadmium--Spectrophotometric method with dithizone
GB/T 7475 Water quality--Determination of copper, zinc, lead and cadmium--Atomic absorption spectrometry
NY 5332-2006 history
2006NY 5332-2006 Pollution-free food. Environmental requirements for production areas of field crops