QB/T 8203-2026Determination of beta-casein in milk and its products (English PDF)

QB/T 8203-2026 is the English-translated version of 牛乳及其制品中β-酪蛋白的测定.

QB/T 8203-2026 is the light industry standard for the determination of beta-casein in milk and its products. Beta-casein is one of the proteins found in cow's milk, and the document deals with how its presence in milk and in products made from milk is determined. It is a method standard, so it concerns the analysis of these dairy materials and not the composition of a finished product.

The standard is useful to testing laboratories in the dairy sector, to dairy processors and brand owners that need to check milk and milk products, to inspection and quality control bodies, and to research groups working on milk protein. It is voluntary, as the /T in the code indicates, and applies where laboratories, contracts or other rules adopt it. The Ministry of Industry and Information Technology approved and issued it on 13 February 2026, and it comes into effect on 1 September 2026. It is a new document and does not replace an earlier edition.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

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