Milk and milk products. Determination of copper content. Photometric method. (Reference method)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

24-09-2004

Publisher

British Standards Institution

Foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Procedure
   8.1 Preparation of test sample
   8.2 Weighing and pretreatment of the test portion
   8.3 Digestion
   8.4 Colour development
   8.5 Blank test
   8.6 Photometric measurements
   8.7 Number of determinations
   8.8 Calibration curve
9 Calculation and expression of results
   9.1 Calculation
   9.2 Expression of results
10 Precision
   10.1 Interlaboratory test
   10.2 Repeatability
   10.3 Reproducibility
11 Test report
Annex A (informative) Results of interlaboratory test
Bibliography

Provides a reference method for the determination of the copper content of milk and milk products. Applicable to: milk, skimmed milk and buttermilk; evaporated milk and sweetened condensed milk; whole and skimmed milk powder; cream and butter; butterfat; ice-cream; hard, semi-hard and soft cheeses of various ages, and processed cheese; and caseins, caseinates and coprecipitates.

Committee	AW/5
DevelopmentNote	Supersedes BS 6394-1(1983). (09/2004) Supersedes 03/303828 DC (10/2004) Reviewed and confirmed by BSI, October 2007. (09/2007)
DocumentType	Standard
Pages	20
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 6394-1:1983 03/303828 DC : DRAFT APR 2003

Standards	Relationship
ISO 5738:2004	Identical

ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 707:2008	Milk and milk products — Guidance on sampling
ISO 648:2008	Laboratory glassware — Single-volume pipettes
ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 835-1:1981	Laboratory glassware Graduated pipettes Part 1: General requirements

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BS ISO 5738:2004

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