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一、前言 JC/204—92《天然花岗石荒料》自1987年制订以来,一直未进行修改,其主要内容已不能适应当前形式的需要,为使本次修订后的标准真正起到行业指导作用,与国际惯例接轨,提高我国矿产资源利用率,标准起草小组进行了广泛的调研工作,以保证标准的科学性,先进性,合理性。
I. Preface JC / 204-92 “Natural Granite Blocks” has not been modified since its formulation in 1987. The main content of JC / 204-92 has not been able to meet the needs of the current form. In order to make the revised standard really play an important role in the industry Guiding role, in line with international practice, improve the utilization of mineral resources in our country, the standard drafting group carried out a wide range of research work to ensure that the standard of scientific, advanced and reasonable.