BS 6049-6:1988
$86.31
Methods of test for tea – Determination of acid-insoluble ash
Published By | Publication Date | Number of Pages |
BSI | 1988 | 8 |
This International Standard specifies a method for the determination of the acid-insoluble ash from tea.
Treatment of the total ash with hydrochloric acid solution, filtration and heating at 525°C to constant mass.