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Standard
| GB 11914-1989 Water quality-Determination of the chemical oxygen demand-Dichromate method (English Version) |
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Detail of GB 11914-1989
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Introduction of GB 11914-1989
本标准规定了水中化学需氧量的测定方法。
本标准适用于各种类型的含COD值大于30m g/L的水样，对未经稀释的水样的测定上限为700mg/L。
本标准不适用于含抓化物浓度大于1000mg/L(稀释后)的含盐水.
Contents of GB 11914-1989