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一、总则 (一)执行标准:混凝土和钢筋混凝土排水管(国家标准批准稿)。 (二)抽样方法:采用随机抽样方法,由检查组到被检企业的现场成品库合格品中编号,检查组与受检单位共同抽号确定受检产品。 (三)受检品种:
I. General (I) Implementation standards: concrete and reinforced concrete drainage pipes (approved draft of national standards). (2) Sampling methods: Random sampling methods shall be used to number the qualified products from the inspection team to the inspected company’s on-site finished product library. The inspection team and the inspected unit shall jointly draw the numbers to determine the products to be inspected. (3) Tested varieties: