This Instrument is in according to ASTM D 1709 BS, DIN, ISO, IS: 2508 (Indian Standard) or according to customer’s required specification, The movable part of clamp is maintaining positive contact with the lower part of the contact to hold the film sample firmly, Electromagnet withstand 2 Kg. weight. Electromagnet unit is to be equipped with a centering device to ensure reproducible drop. Electric power is used to energize and de-energize the electromagnet.