DPS
Drejtoria e Përgjithshme e Standardizimit
0 Items
My account
E-albania
Phone: +355 4 222 62 55
E-mail: info@dps.gov.al
Address: Address: "Reshit Collaku" Str., (nearby ILDKPKI, VI floor), Po.Box 98, Tiranë - Albania
Main menu

ISO 5518:1978

Fruits, vegetables and derived products — Determination of benzoic acid content — Spectrophotometric method

May 1, 1978
95.99 Withdrawal of Standard   Jan 18, 2007

General information

95.99     Jan 18, 2007

ISO

ISO/TC 34/SC 3

International Standard

67.080.01  

French   English  

Buying

Withdrawn

Language in which you want to receive the document.

Scope

The method consists in homogenizing the product, followed by dilution and acidification of a test portion, extraction of the acid by diethyl ether, then alkaline re-extraction of this acid and purifying by oxidation using acidified potassium dichromate, determination of the acid with a suitable spectrophotometer. The method cannot be applied in the presence of p-chlorobenzoic acid and cinnamic acid, respectively.

Life cycle

NOW

WITHDRAWN
ISO 5518:1978
95.99 Withdrawal of Standard
Jan 18, 2007

REVISED BY

ABANDON
ISO/CD 5518

PUBLISHED
ISO 5518:2007