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BS ISO 20481:2008

BS ISO 20481:2008

Current

Current

The latest, up-to-date edition.

Coffee and coffee products. Determination of the caffeine content using high performance liquid chromatography (HPLC). Reference method

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-30-2008

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Preparation of test samples
8 Procedure
9 Calculation
10 Precision
11 Test report
Annex A (informative) - Precision data of validation
        study on caffeine determination in coffee
        and coffee products
Bibliography

Describes a high performance liquid chromatography (HPLC) method for the determination of the caffeine content of: green coffee; roasted coffee; soluble coffee, regular and decaffeinated; and mixed instant coffee products (e.g. coffee/chicory mix or cappuccino-type coffee drink).

This International Standard specifies a high performance liquid chromatography (HPLC) method for the determination of the caffeine content of: green coffee; roasted coffee; soluble coffee, regular and decaffeinated; and mixed instant coffee products (e. g. coffee/chicory mix or cappuccino-type coffee drink).

Committee
W/-
DevelopmentNote
Supersedes 06/30154825 DC. (06/2008)
DocumentType
Standard
Pages
18
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 20481:2008 Identical

ISO 11817:1994 Roasted ground coffee Determination of moisture content Karl Fischer method (Reference method)
ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
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 3726:1983 Instant coffee — Determination of loss in mass at 70 degrees C under reduced pressure
ISO 20938:2008 Instant coffee — Determination of moisture content — Karl Fischer method (Reference method)
ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
ISO Guide 30:2015 Reference materials Selected terms and definitions
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 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 6673:2003 Green coffee — Determination of loss in mass at 105 degrees C

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Hardcopy - English
PDF - English
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