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前言石棉矿石评价指标的制定是紧紧围绕我国当前对石棉矿石地质加工成果、产品标准筛检验要求以及部颁各级成品棉质量标准开展工作的。这是从1981年11月开始,通过大量计算,逐步摸索出来的一种适合我国生产情况的指标,适用于对纵、横纤维石棉矿石的评价。这也是一种新的评价石棉矿石的方法,希望能在生产实践中日趋完善。
Foreword The development of asbestos ore evaluation index is closely around our current asbestos ore geological processing results, product standard sieve inspection requirements and ministerial level at all levels of finished cotton quality standards work. This is an index that is gradually developed from a large number of calculations starting from November 1981 and suitable for the production of our country and is suitable for the evaluation of asbestos ore with vertical and horizontal fibers. This is also a new method for evaluating asbestos ores, hoping to be better and better in production practice.