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ČSN EN ISO 182-3 (643209)
Plasty - Stanovení náchylnosti sloučenin a výrobků na bázi homopolymerů a kopolymerů vinylchloridu uvolňovat chlorovodík a jiné kyselé produkty při zvýšené teplotě - Část 3: Konduktometrická metoda (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.6.2024
Informácie o norme:
Označenie normy: ČSN EN ISO 182-3
Rozlišovací znak: 643209
Katalógové číslo: 519058
Dátum vydania normy: 1.6.2024
Kód tovaru: NS-1186269
Počet strán: 32
Približná hmotnosť: 96 g (0.21 libier)
Krajina: Česká technická norma
Kategória: Technické normy ČSN
Kategórie - podobné normy:
Anotácia textu normy ČSN EN ISO 182-3 (643209):
This document specifies a method for the determination of the thermal stability at elevated temperature of compounds and products based on vinyl chloride homopolymers and copolymers (in the following text abbreviated as PVC) which undergo dehydrochlorination (the evolution of hydrogen chloride). 1.2 This document is applicable to the characterization of PVC compounds and products, especially with regard to the effectiveness of their heat-stabilizing systems. It is applicable to coloured PVC compounds and products where a discolouration test under the action of heat may be unsatisfactory. 1.3 This document is applicable to compounded PVC materials and products. It can be applicable to polymers in powder form under appropriate conditions, to be agreed upon between the interested parties. This document does not apply to PVC compounds in the form of dry blends, since such materials can be not sufficiently homogeneous. 1.4 This document does not apply to PVC compounds and products which evolve other decomposition products, in addition to hydrogen chloride, at elevated temperatures that can affect the conductivity of water when they are absorbed into it. In this case, a method suitable for the determination of chloride ion (Cl-) in the absorbing solution shall be used (see ISO 182-4[2]). 1.5 This document can also be applied to other plastics materials which can evolve hydrogen chloride or other hydrogen halides when heated under the conditions prescribed by the relevant specifications, or as agreed upon between the interested parties
Náhľad normy ČSN EN ISO 182-3 (643209)
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