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Water Vapor Permeability (125 μm PET)
Water Vapor | GBW(E) 130543 Certified Reference materials
6
Certified PET films
3
GTR · WVTR · OTR
GBW(E)
Certified reference material
300µm
Thickness range
Cross-brand
Any analyzer
What these reference films do
- Certified reference values for gas, water-vapour & oxygen transmission calibration.
- Calibrate, adjust & verify permeability instrument accuracy.
- Cover 25–300 µm — high-permeability to high-barrier.
- GBW(E) certified secondary reference materials.
Who uses them
- Labs needing GBW(E)-certified reference material for GTR · WVTR · OTR calibration.
- Pharmaceutical & medical packaging QC teams.
- Food, beverage & flexible-packaging producers.
- Photovoltaic, OLED & flexible-electronics teams.
Six Certified Reference Films
| Certificate No. | Property | Thickness | Certified Reference Value (k = 2) |
|---|---|---|---|
| GBW(E) 130541 | Gas Permeability (GTR) | 125 µm | (11.2 ± 2.1) cm³/(m²·24h·0.1 MPa) |
| GBW(E) 130542 | Gas Permeability (GTR) | 300 μm | (4.7 ± 1.2) cm³/(m²-24h-0.1 MPa) |
| GBW(E) 130543 | Water Vapour Permeability (WVT) | 125 µm | (4.4 ± 0.8) g/(m²-24h) |
| GBW(E) 130544 | Water Vapour Permeability (WVT) | 300 μm | (1.8 ± 0.3) g/(m²-24h) |
| GBW(E) 130497 | Oxygen Permeability (OTR) | 25 μm | (62.8±2.9) cm³/(m²-24h) |
| GBW(E) 130498 | Oxygen Permeability (OTR) | 125 µm | (12.3 ± 0.9) cm³/(m²-24h) |
Standards & Compliance
Certified reference values established under GBW(E) reference-material certification.
Suitable for calibrating instruments operating to ISO 15105-2 · ASTM D3985 · ISO 15105-1 · ASTM D1434 · ISO 2528.
Reference film in use
1 · Prepare film & cutter
2 · Cut the sample
3 · Obtain clean specimen
4 · Load & run the test