Features:Change from yellow to dark brown / black
Easy to read
To identify simple errors
Not reflective surface Fläche
Safe storage and traceability through irreversible display
Easy to use:Easy-to-open system
Simply localizable and removable overlay
Unadulterated overlay after treatment
Application:For daily testing for air removal and steam penetration according to the requirements of EN 17665-1: 2006
Complies with ISO 11140-1: 2005 and ISO 11140-4: 2007