China National Standards

China Photography Washing Waste GB Standards List

  •  China "Photography Washing Waste" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 41964-2022 Photography Washing Waste Liquid Determination of Ammonia Nitrogen Content (Micro-diffusion Method) {译}
    摄影 冲洗废液 氨态氮含量的测定 (微扩散法)    		 China National Standards
    Photography Washing Waste
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