I.S. EN ISO 14637:2006
Current
The latest, up-to-date edition.
MILK - DETERMINATION OF UREA CONTENT - ENZYMATIC METHOD USING DIFFERENCE IN PH (REFERENCE METHOD)
Hardcopy , PDF
English
01-01-2006
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Terms and definitions
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Preparation of test sample
8 Procedure
8.1 General
8.2 Blank determination
8.3 Calibration
8.4 Checking the calibration
8.5 Determination
8.6 Checking the stability
8.7 Checking the contamination of the electrodes
8.8 Cleaning procedure
9 Maintenance of the electrodes
9.1 Regeneration
9.2 Strong regeneration
10 Calculation and expression of results
10.1 Calculation
10.2 Expression of results
11 Precision
11.1 Interlaboratory tests
11.2 Repeatability
11.3 Reproducibility
12 Test report
Annex A (informative) Differential pH apparatus
Annex B (informative) Interlaboratory tests
Bibliography
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.