BS ISO 10727:2002
Current
The latest, up-to-date edition.
Tea and instant tea in solid form. Determination of caffeine content. Method using high-performance liquid chromatography
Hardcopy , PDF
English
21-08-2002
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
Specifies a method for the determination by high-performance liquid chromatography (HPLC) of the caffeine content of teas and instant teas.
| Committee |
AW/8
|
| DevelopmentNote |
Supersedes 00/712978 DC and BS 7820-1(1995). (09/2002)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a method for the determination by high-performance liquid chromatography (HPLC) of the caffeine content of teas and instant teas. It is applicable to green tea, black tea and decaffeinated tea products.
| 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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