共找到 1412 条与 奶及加工奶产品 相关的标准,共 95 页
Milk and dairy products. Method for determination of the antibiotic by high performance liquid chromatography
Dried milk. Determination of moisture content (reference method)
Dried milk. Determination of titratable acidity (routine method)
Milk and milk products. Detection of vegetable fat by gas chromatography with mass spectrometric detection
Demineralized dairy whey. Specifications
Canned milk. Dry milk. Specifications
Enriched drinking milk. General specifications
Milk. Determination of total milk-clotting activity of bovine rennet
Specialized milk-based products. Determination of selenium content
Specialized milk-based products. Determination of Omega-3 and Omega-6 fatty acids by gas chromatography
This International Standard specifies a method for the determination of the behaviour in hot coffee of dried milk and dried milk products, either instant or non-instant.
Dried milk and dried milk products -- Determination of their behaviour in hot coffee (Coffee test)
This part of ISO 8968|IDF 20 specifies a method for the direct determination of the protein-nitrogen content of liquid milk, whole or skimmed. An alternative indirect method using calculations is also described.
Milk -- Determination of nitrogen content -- Part 5: Determination of protein-nitrogen content
This International Standard specifies a method for the determination of the aflatoxin M1 (AFM1) content of milk and milk powder by a method including a clean-up step using immunoaffinity chromatography followed by a thin-layer chromatography (IAC-TLC). The method is applicable to raw milk, low fat or skimmed liquid milk and milk powder. The lowest quantity of AFM1 that can commonly be determined is 2 ng, which corresponds to a limit of quantification close to 0,10 µg/l for liquid milk or dissolved milk powder (for a spot of 20 µl).
Milk and milk powder -- Determination of aflatoxin M1 content -- Clean-up by immunoaffinity chromatography and determination by thin-layer chromatography
This International Standard specifies a method for the preparation of fatty acid methyl esters from milk fat and fat obtained from dairy products. The method is not suitable for the analysis of partially lipolysed milk fat (fat acidity > 1 mmol of free fatty acids per 100 g of fat). In such a case, the alternative method described in Annex A can be used.
Milk fat -- Preparation of fatty acid methyl esters
This part of ISO 17997|IDF 29 specifies a reference method for the indirect determination of the casein-nitrogen content of bovine milk. The method can be modified for milk from other species or liquid dairy products. NOTE Casein nitrogen will decrease with milk storage time due to casein breakdown even at 4 °C. The casein nitrogen of heat-treated milk will be artificially high because of whey-protein denaturation.
Milk -- Determination of casein-nitrogen content -- Part 1: Indirect method (Reference method)
This part of ISO 13366|IDF 148 specifies a microscopic method (reference method) for the counting of somatic cells in both raw and chemically preserved milk. This part of ISO 13366|IDF 148 is applicable for the counting of somatic cells in cows' milk, provided that the eventually mentioned prerequisites are met. This method is suitable for preparing standard test samples and determining reference method values that are required for calibrating mechanized and automated cell-counting methods. WARNING — The use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Milk -- Enumeration of somatic cells -- Part 1: Microscopic method (Reference method)
This International Standard specifies a method for the determination of the fatty acid composition of milk fat and fat obtained from dairy products.
Milk fat -- Determination of the fatty acid composition by gas-liquid chromatography
This part of ISO 8968|IDF 20 specifies a method for the determination of the nitrogen content of liquid, whole or skimmed milk. It concerns a semi-micro rapid routine method following the block-digestion principle. NOTE The method is a more rapid method than that described in ISO 8968-1|IDF 20-1 and ISO 8968-2|IDF 20-2 since the digestion time is reduced by taking a lower mass of test portion and using hydrogen peroxide together with sulfuric acid and a catalyst in the digestion.
Milk -- Determination of nitrogen content -- Part 3: Block-digestion method (Semi-micro rapid routine method)
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