BS EN ISO 11816-1:2024 – TC
$186.33
Tracked Changes. Milk and milk products. Determination of alkaline phosphatase activity – Fluorimetric method for milk and milk-based drinks
Published By | Publication Date | Number of Pages |
BSI | 2024 | 52 |
This document specifies a fluorimetric method for the determination of alkaline phosphatase (ALP) (EC 3.1.3.1) activity in raw and heat-treated whole milk, semi-skimmed milk, skimmed milk and flavoured milks. This method is applicable to milk and milk-based drinks from cows, sheep and goats. It is also applicable to milk powder after reconstitution. The instrument used for the determination of ALP can read activities up to 7 000 milliunits per litre (mU/l). If the activity is higher than 7 000 mU/l, it is diluted with ALP-free milk so as to obtain a measurement not higher than 7 000 mU/l.
PDF Catalog
PDF Pages | PDF Title |
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30 | undefined |
40 | 8.1 Alkaline phosphatase-free milk 8.2 Preparation of the test sample 8.2.1 General 8.2.2 Pasteurized test samples 8.2.3 Dilution of test samples with high ALP values 9.1 Verification of instrument performance 9.1.1 General |
41 | 9.1.2 Daily instrument tests 9.1.3 Using FLM200 9.1.4 Using FLM300 9.1.5 Controls |
42 | 9.2 Reagent controls to test the suitability of ready-to-use working substrate (5.3) 9.3 Calibration 9.3.1 General 9.3.2 Using FLM200 9.3.3 Using FLM300 |
43 | 9.4 Determination |
44 | 9.5 Test-sample-related controls 9.5.1 Recommended negative and positive control tests 9.5.2 Interfering substance test 9.5.3 Heat-stable microbial alkaline phosphatase control test 10.1 Calibration ratio |
45 | 10.2 Calculation 10.3 Expression of test results 11.1 Interlaboratory study 11.2 Repeatability 11.3 Reproducibility |