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Supported standards
List of standards supported by Innoform
Standards selection All | Akkreditiert | ASTM D | ASTM F | DIN | DIN EN | DIN EN ISO | DIN ISO | FINAT FTM | Hausverfahren | ISO | OthersDetails of the selected standard
| Standard type: | DIN |
| Name: | DIN 55403 |
| Designation: | Verpackungsprüfung – Prüfverfahren für Verpackungsfolien – Bestimmung der Rollneigung |
| Akkreditiert: | nein |
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Tests of this standard
Curling or flatnessThe curling of sheet materials depends generally on temperature and conditioning state. So multilayer materials made of materials having different coefficients of thermal expansion or unequal expansion/shrinkage due to deviating hygroscopic tendency may tend to curl caused by a kind of bi-metall effect. In addition to that excessive mechanical stress in the processing of rolls can lead ot curling.
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