一、前言铝合金建筑型材的质量检查,从1983年以来开始采用计数型抽样检验,对每批抽取部分产品,以此判断整批产品质量是否合格。以前,检查建筑型材质量都要逐件检查,这样,产品经过多次翻动、转移、吊运,不仅易产生磕碰伤和擦划伤,而且劳动强度大、工时长、眼睛疲劳,虽经全数检 First, the preface Quality inspection of aluminum alloy building profiles, counting since 1983 began to use sampling, sampling each batch of products, in order to determine the quality of the entire batch of products is qualified. In the past, inspection of building profile quality should be checked one by one, so that the product after repeated flip, transfer, lifting, not only easy to produce bumps and scuffs scratches, and labor-intensive, long working hours, eye fatigue, though all the seized