Pryžové a plastové hadice a hadičky - Měření ohebnosti a tuhosti - Část 2: Ohybové zkoušky při snížených teplotách (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.1.2022
Označenie normy: ČSN EN ISO 10619-2
Rozlišovací znak: 635216
Katalógové číslo: 513286
Dátum vydania normy: 1.1.2022
Počet strán: 24
Približná hmotnosť: 72 g (0.16 libier)
Krajina: Česká technická norma
Kategória: Technické normy ČSN
This document specifies two methods for measuring the stiffness and one method for the determination of the flexibility of rubber and plastics hoses and tubing when they are bent to a specific radius at sub-ambient temperatures.
Method A is suitable for non-collapsible rubber and plastics hoses and tubing with a bore of up to and including 25 mm. This method provides a means of measuring the stiffness of the hose or tubing when the temperature is reduced from a standard laboratory temperature.
Method B is suitable for rubber and plastics hoses and tubing with a bore of up to 100 mm and provides a means of assessing the flexibility of the hose or tubing when bent around a mandrel at a specified sub-ambient temperature. It can also be used as a routine quality control test.
Method C is suitable for rubber and plastics hoses and tubing with a bore of 100 mm and greater. This method provides a means of measuring the stiffness of the hose and tubing at sub-ambient temperatures. This method is only suitable for hoses and tubing which are non-collapsible