Abstract
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.
Read sample
Preview this standard in our Online Browsing Platform (OBP)
General information
-
Status: PublishedPublication date: 1977-10Stage: International Standard confirmed [90.93]
-
Edition: 1Number of pages: 2
-
Technical Committee :ISO/TC 61/SC 12ICS :83.080.10
- RSS updates
Life cycle
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)