TEA AND INSTANT TEA IN SOLID FORM - DETERMINATION OF CAFFEINE CONTENT - METHOD USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2004

Publisher

German Institute for Standardisation (Deutsches Institut für Normung)

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Preparation of test sample
8 Procedure
9 Calculation
10 Precision
11 Test report
Annex A (informative) Results of interlaboratory test
Bibliography

Defines a method for the determination by high-performance liquid chromatography (HPLC) of the caffeine content of teas and instant teas.

DocumentType	Standard
Pages	10
PublisherName	German Institute for Standardisation (Deutsches Institut für Normung)
Status	Current
Supersedes	DIN 10801:1995-01

Standards	Relationship
ISO 10727:2002	Identical

ISO 7516:1984	Instant tea in solid form Sampling
ISO 1839:1980	Tea — Sampling
ISO 7513:1990	Instant tea in solid form Determination of moisture content (loss in mass at 103 degrees C)
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 1572:1980	Tea Preparation of ground sample of known dry matter content

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DIN ISO 10727 E : 2004

TEA AND INSTANT TEA IN SOLID FORM - DETERMINATION OF CAFFEINE CONTENT - METHOD USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

Table of Contents

Abstract

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