Chromium ores and concentrates—Determination of silicon content—Spectrophotometric method and gravimetric method
MOD ISO 5997:1984
全国生铁及铁合金标准化技术委员会
本标准规定了分光光度法和重量法测定铬矿石和铬精矿中硅含量。本标准适用于铬矿石和铬精矿中硅含量的测定。测定范围（质量分数）：分光光度法0.05%～0.5%；重量法0.5%～15.0%，本标准应遵守GB/T 24228的有关规定。
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