Ứng dụng sản phẩm
- Determining the coefficient of water vapour on leather and non-leather upper (water vapour absorption), according EN ISO 20344:6.7; EN ISO 17229; ISO 17699; TM172.
Thông số kỹ thuật
- Weigh the conditioned test sample and record the mass as m1.
- Place 50 ml of water into the container and place the test piece over the container with the side facing the foot downwards.
- Place the impermeable disc over the test piece and screw down firmly.
- Ensure that no water laps against the bottom of the test piece.
- Remove the test piece after 8 h and weigh immediately, recording its mass, m2.
- Calculate the water vapour absorption using the formula W₁= (m₂-m₁)/a.
Tiêu chuẩn
- EN ISO 20344:6.7;
- EN ISO 17229;
- ISO 17699;
- TM172.
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