共找到 150 條與 難氧化物質 相關的標準，共 10 頁
本標準規定了水質中化學需氧量（COD）的預制試劑分光光度測定方法。 本標準適用于地表水、地下水、生活污水和工業廢水中COD的測定。 本標準不適用于稀釋后氯離子質量濃度大于1 500mg/L的含鹽水。 當取樣體積為2.00ml時，本標準的方法檢出限為4mg/L，測定下限為16mg/L
Water quality—Determination of the chemical oxygen demand —Precast reagent- spectrophotometric method
Methods for classifying aquatic toxicity of chemically difficult-to-test substances
Mineral chemical analysis methods. Determination of silicon, barium oxide, aluminum oxide, calcium oxide and magnesium oxide in iron minerals
This International Standard provides procedures, not covered by the methods described in ISO 8692 and ISO 10253, for testing difficult substances
Water quality -- Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water
Vegetable oil. Methods for determination of insoluble impurities
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Water quality－Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water
This International Standard provides procedures, not covered by the methods described in ISO 8692 and ISO 10253, for testing difficult substances
Water quality - Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water
Water quality -- Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water
This International Standard provides procedures, not covered by the methods described in ISO 8692 and ISO 10253, for testing difficult substances
Water quality - Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water
Le présent document spécifie une méthode de détermination de la teneur en insolubles dans l'eau pour les engrais. Il est applicable aux engrais
Fertilizers - Determination of water-insoluble matter
Water quality -- Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water
Mixed feeds, protein-vitamin-mineral concentrates. Method for determination of peroxide number (hydroperoxides and peroxides)
Water quality - Guidelines for algal growth inhibition tests with poorly soluble materials, volatile compounds, metals and waste water.
Mixed feeds, protein-vitamin-mineral concentrates. Method for determination of peroxide number (hydroperoxides and peroxides)
Praseodymium and its oxide. Method of determination of rare-earth element oxides
