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301队檢驗室在原有氨法定銅的基础上,試驗了在氨性溶液中分离鐵以后,观察銅氨絡离子藍色的深淺,来了解銅品位高低情況。1956年3月會試驗过1797个品位在0.1％左右的矿样,結果完全沒有錯誤者佔98.10％;將实际位品0.10％以上(最高在0.13％)誤認为0.10％以下者佔0.9％;將实际品位0.10％以下(最低为0.06％)誤認为0.1％以上者佔1％。从試驗情況看出此法可保証質量,滿足地質要求。該室在1956年4月即將此法投入生产后,
301 team test room on the basis of the original ammonia statutory copper, tested in the separation of iron in ammonia solution, observe the depth of copper ammonia ion blue, to understand the level of copper grade situation. In March 1956, 1797 mineral samples with a grade of about 0.1% were tested. As a result, 98.10% were completely free from errors and 0.9% were misinterpreted as 0.10% or less (0.10% or more) of actual products (up to 0.13%); The actual grade of 0.10% or less (minimum 0.06%) mistaken for 0.1% or more accounted for 1%. Judging from the test situation, this method can ensure the quality and meet the geological requirements. The room in April 1956 soon after the law into production,