China National Standards

China Griess GB Standards List

  •  China "Griess" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 8969-1988 Air quality--Determination of nitrogen oxides in ambient air--Griess-saltzman method
    空气质量 氮氧化物的测定 盐酸萘乙二胺比色法    		 China National Standards
    Griess
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