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ISO 120:1977

Plastics — Phenol-formaldehyde mouldings — Determination of free ammonia and ammonium compounds — Colorimetric comparison method
1. 10. 1977.

Опште информације

90.93     18. 6. 2025.

ISO

ISO/TC 61/SC 12

Međunarodni standard

83.080.10  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 120:1977
90.93 Odluka o potvrđivanju standarda
18. 6. 2025.

Nacionalna preuzimanja

SRPS G.S1.710:1984  
ISS

Plastične mase - Fenolformaldehidni otpresci - Određivanje slobodnog amonijaka

90.93   Odluka o potvrđivanju standarda

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