NORMSERVIS s.r.o.

ISO 182-4:1993

Plastics — Determination of the tendency of compounds and products based on vinyl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevated temperatures — Part 4: Potentiometric method

NORMA vydána dne 25.3.1993

Anglicky -
Elektronické PDF (3185.50 CZK)
Anglicky -
Tištěné (3185.50 CZK)


Francouzsky -
Elektronické PDF (3185.50 CZK)
Francouzsky -
Tištěné (3185.50 CZK)

Informace o normě:

Označení normy: ISO 182-4:1993
Datum vydání normy: 25.3.1993
Počet stran: 14
Přibližná hmotnost: 42 g (0.09 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO

Anotace textu normy ISO 182-4:1993 :

Description / Abstract: The principle of the method is maintaining a test portion of the PVC at an agreed temperature in a nitrogen gas stream, absorbing the hydrogen chloride evolved in a given amount of an appropriate solution, and potentiometrically determining the amount of hydrogen chloride evolved in relation to the recorded change in pCl of the absorbing solution. The method is recommended for compounded PVC materials and products only, although it can be used for polymers in powder form under appropriate conditions.