PENETROMETE BALLY EL 26/4
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Principle
The specimen (any boot or shoe upper leather) is flexed in a manner simulating conditions of wear.
Measurements are made of the following quantities :
A) The duration of flexing which is just sufficient to cause water to penetrate through the sample from one face to the other ;
B) The percentage gain of weight of the specimen due to water absorption during one or more specified time intervals from the beginning of flexing ;
C) The mass of water which is transmitted through from one face to the other during one or more specified time intervals.
The apparatus comprises the following :
- Six pairs of cylinders 30.0 mm diameter, made of inert, rigid material which is an electrical insulator.
- An electric motor which drives the movable cylinder backwards and forwards along its axis with crank motion at 50 cycles per minute.
- Four amplitudes of the crank motion can be selected, such that the length of the trough is reduced by : 5% ; 7.5% ; 10% or 15% when the cylinders approach one another.
- Ring shaped clamps to clamp the longer edges of the specimen round the adjacent end of the cylinders so that the leather forms a trough whose ends are closed by the cylinders.
- A tank containing distilled water, in which the trough shaped specimen can be immersed.
- An electrically operated device which provides a signal to indicate when penetration of water through the specimen has occurred.
- Partial counters (one for each test station).
- A digital timer.
Also available with 6 stations.
Supplied with:
- Operating instructions ; conformity / calibration certificate.
- Press knife ; copper mesh ; 4 probes ; 4 pairs of champs.
Standards : SATRA TM171 ; BS 3144 ; EN ISO 20344:6.13 ; IUP 10 ; DIN 53338 ; EN 13518.
Leaflets
Download leaflet Pegasil_Penetrometre_Bally_EL-26-6_ENG.pdf
Download leaflet Pegasil_Penetrometre_Bally_EL-26-4_ENG.pdf
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