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 120:1977

Plastics — Phenol-formaldehyde mouldings — Determination of free ammonia and ammonium compounds — Colorimetric comparison method

Oct 1, 1977

General information

90.93     Jun 18, 2025

ISO

ISO/TC 61/SC 12

International Standard

83.080.10  

French   English  

Buying

Published

Language in which you want to receive the document.

Scope

Specification of a semi-quantitative method. The content of free ammonia in a moulded article is of importance, when corrosion of metal inserts or contamination in contact with the article has to be considered. Distillation of the aqueous extract from a powdered test portion, coloration of the distillate by reaction with Nessler reagent and comparison of the colour with that of standard matching solutions.

Life cycle

NOW

PUBLISHED
ISO 120:1977
90.93 Standard confirmed
Jun 18, 2025