BS EN ISO 14673-1:2004
Current
The latest, up-to-date edition.
Milk and milk products. Determination of nitrate and nitrite contents Method using cadmium reduction and spectrometry
Hardcopy , PDF
English
18-03-2004
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
8.1 Dried milk and dried whey
8.2 Caseins and caseinates
8.3 Cheese
8.4 Whey cheese
9 Procedure
9.1 Preparation of the copperized cadmium
column
9.2 Checking the reducing capacity of the
column
9.3 Regeneration of the column
9.4 Preparation of test portion
9.5 Extraction and deproteination
9.6 Reduction of nitrate to nitrite
9.7 Blank test
9.8 Determination
9.9 Preparation of calibration graph
10 Calculation and expression of results
10.1 Nitrite content
10.2 Nitrate content
11 Precision
11.1 General
11.2 Repeatability
12 Test report
Bibliography
Gives a method for the determination of the nitrate and nitrite contents of milk and milk products by cadmium reduction and spectrometry. Applicable to whole and partly skimmed and skimmed dried milk, hard, semi-hard and soft cheeses, processed cheese and whey cheese, caseins and caseinates and dried whey.
| Committee |
AW/5
|
| DevelopmentNote |
Supersedes 99/702866 DC (12/2001)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| I.S. EN ISO 14673-1:2004 | Identical |
| UNI EN ISO 14673-1 : 2004 | Identical |
| NBN EN ISO 14673-1 : 2004 | Identical |
| UNE-EN ISO 14673-1:2004 | Identical |
| NS EN ISO 14673-1 : 2ED 2004 | Identical |
| EN ISO 14673-1:2004 | Identical |
| ISO 14673-1:2004 | Identical |
| SN EN ISO 14673-1 : 2004 | Identical |
| NF EN ISO 14673-1 : 2004 | Identical |
| NEN EN ISO 14673-1 : 2004 | Identical |
| DIN EN ISO 14673-1:2004-05 | Identical |
| ISO 707:2008 | Milk and milk products — Guidance on sampling |
| ISO 1042:1998 | Laboratory glassware — One-mark volumetric flasks |
| ISO 648:2008 | Laboratory glassware — Single-volume pipettes |
| ISO 565:1990 | Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings |
| ISO 835-1:1981 | Laboratory glassware Graduated pipettes Part 1: General requirements |
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