Hubei Provincial Standard of the People's Republic of China
Latest
DB42/ 221-2002
Scope
This standard specifies the terms and definitions, requirements, test methods, and inspection rules for the environmental conditions of organic tea production areas. This standard applies to organic tea producing areas within Hubei Province.
DB42/ 221-2002 Referenced Document
GB/T 11898 Water quality--Determinatoin of free chlorine and total chlorine--Spectrophotometric method useing N,N-diethyl-1,4 phenylenediamine
GB/T 15262 Ambient air-Determination of sulfur dioxide-Formaldehyde absorbing-pararosaniline spectrophotometry
GB/T 15432 Gravimetric Method for Determination of Total Suspended Particulate Matter in Ambient Air "Revision No. 1"*， 2018-08-13 Update
GB/T 15433 Ambient air--Determination of the fluoride--Method by lime-paper sampling and fluorine ion-selective electrode analysis
GB/T 15434 Ambient air--Determination of the mass concentration of fluoride--Method by filter sampling and fluorine ion- selective electrode analysis
GB/T 15435 Ambient air--Determination of nitrogen dioxide--Saltzman method
GB/T 16488 Water quality--Determination of petroleum oil, animal and vegetable oils--Infrared photometric method
GB/T 17134 Soil quality--Determination of total arsenic--Silver diethyldithiocarbamate spectrophotometry
GB/T 17135 Soil quality--Determination of total arsenic--Spectrophotometric method with potassium borohyride and silver nitrate
GB/T 17136 Soil quality--Determination of total mercury--Cold atomic absorption spectrophotometry
GB/T 17137 Soil quality--Determination of total chromium--Flame atomic absorption spectrophotometry
GB/T 17138 Soil quality--Determination of copper, zinc--Flame atomic absorption spectrophotometry