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項目
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指標
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Ⅰ類
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Ⅱ類
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優(yōu)等品
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一等品
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合格品
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優(yōu)等品
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一等品
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合格品
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氧化鎂（MgO）質(zhì)量分數(shù)/％ ≥
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95.0
|
93.0
|
92.0
|
95.0
|
93.0
|
92.0
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氧化鈣（CaO）質(zhì)量分數(shù)/％ ≤
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1.0
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1.5
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2.0
|
0.5
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1.0
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1.5
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鹽酸不溶物質(zhì)量分數(shù)/％ ≤
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0.10
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0.20
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—
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0.15
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0.2
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—
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硫酸鹽（以SO4計）質(zhì)量分數(shù)/％ ≤
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0.2
|
—
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—
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0.5
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0.8
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1.0
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篩余物（150µm試驗篩）質(zhì)量分數(shù)/％ ≤
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0
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0.03
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0.05
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0
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0.05
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0.1
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鐵（Fe）質(zhì)量分數(shù)/％ ≤
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0.05
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0.06
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0.10
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0.05
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0.06
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0.10
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錳（Mn）質(zhì)量分數(shù)/％ ≤
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0.003
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0.010
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—
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0.003
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0.010
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—
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氯化物（以CLˉ計）質(zhì)量分數(shù)/％ ≤
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0.07
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0.20
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0.30
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0.15
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0.20
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0.30
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灼燒失量質(zhì)量分數(shù)/％ ≤
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3.5
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5.0
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5.5
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3.5
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5.0
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5.5
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堆積密度/ (g/ml) ≤
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0.16
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0.20
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0.25
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0.20
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0.20
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0.25
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