Phone: +1 758-453-0049
E-mail: info@slbs.org
Bisee, Saint Lucia LC04301

ISO 120:1977

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

Oct 1, 1977

General information

90.93     Mar 4, 2020

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
Mar 4, 2020

Preview

Only informative sections of projects are publicly available. To view the full content, you will need to members of the committee. If you are a member, please log in to your account by clicking on the "Log in" button.

Login