Compliance work

Overall migration Sensory analysis

specific migration

Material analysis

Mechanical properties

permeation

PPWR/ Recycling

Gelboflextest/Brugger KFT

Wrinkle test in which a piece of film of approx. DIN A 4 size is cylindrically wrung up at an angle of max. 440 ° in the Brugger KFT tester. Usually 100 cycles are performed, afterwards the sample is tested e. g. on hole formation, delamination, oxygen or water vapour transmission rate, optical density or the like. The base price includes the examination of max. 4 sheets over 100 cycles at an angle of max. 440 °. Other test conditions are available upon request, calculation according to time spent. Minimum sample size 280 mm x 200 mm.

Test Method Group: Mechanical properties

Norms:
  • ASTM F 392/ F 392M (reapproved 2021) Standard Practice for Conditioning Flexible Barrier Materials for Flex Durability

Required Sample Amount: 4 x DIN A 4 for standard tests, or according to the requested number of specimens 1 x DIN A 4 per specimen

Standard Tests

Condition A- full flex for 1 h

Specific Norm: ASTM F 392/ F 392M

Full Flex= 440° for 1 h= 2700 cycles

Condition B- full flex for 20 min

Specific Norm: ASTM F 392/ F 392M

Full Flex= 440° for 20 min that is 20 min =900 cycles

Condition C- full flex for 6 min

Specific Norm: ASTM F 392/ F 392M

Full Flex= 440° for 6 min= 270 cycles

Condition D- full flex for 20 cycles

Specific Norm: ASTM F 392/ F 392M

Full Flex= 440° for 20 cycles

Condition E- partial flex for 20 cycles

Specific Norm: ASTM F 392/ F 392M

Partial Flex= 400° for 20 cycles
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