Milk and milk products. Ovine and caprine rennets. Determination of total milk-clotting activity

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-30-2006

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Sampling
8 Preparation of test sample
   8.1 Liquid ovine (or caprine) rennet
   8.2 Ovine (or caprine) rennet paste
   8.3 Powdered ovine (or caprine) rennet
9 Procedure
   9.1 Preparation of substrate
   9.2 Preparation of the calf and adult bovine rennet
        reference solutions
   9.3 Preparation of the calf and adult bovine rennet
        reference working solutions
   9.4 Preparation of the ovine (or caprine) rennet test
        solution
   9.5 Clotting
10 Calculation and expression of results
   10.1 Calculation
   10.2 Expression of results
11 Precision
   11.1 Interlaboratory test
   11.2 Repeatability
   11.3 Reproducibility
12 Test report
Annex A (informative) Results of interlaboratory trial
Bibliography

Describes a method for the determination of the total milk-clotting activity of an ovine or caprine rennet, including rennet paste, containing only chymosin and pepsin as the active coagulating enzymes on a standard milk substrate prepared using a calcium chloride solution of 0,5 g per litre (pH approx. 6,5).

Committee	AW/5
DevelopmentNote	Supersedes 04/30126306 DC (12/2006)
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Current
Supersedes	04/30126306 DC : DRAFT DEC 2004

Standards	Relationship
ISO 23058:2006	Identical

ISO 11815:2007	Milk — Determination of total milk-clotting activity of bovine rennets
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 1042:1998	Laboratory glassware One-mark volumetric flasks
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

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BS ISO 23058:2006

Milk and milk products. Ovine and caprine rennets. Determination of total milk-clotting activity

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Abstract

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