Lloyd Instruments has developed a new test jig for evaluating both the force required to pull of the end caps from syringes and the force required to expel fluid through the syringe. This versatile new jig not only enables two different tests to be performed, but also can accommodate both 125 ml and 30 ml syringes.Originally designed for use with Lloyd Instruments’ LRXPlus single column (5 kN (1124 lbf)) materials testing instrument, the jig could also easily be used with the company’s twin column testing machines.

The jig consists of a rectangular frame mounted on the baseplate of the materials testing machine. The top plate of the jig has a centrally located hole and a pair of locking levers. Syringes of both sizes can be attached vertically to the top plate using adapter plates, either pointing up, or down through the hole. A pair of rails is positioned halfway between the top and bottom plate.

For end cap removal tests, each syringe is clamped vertically with the end cap pointing upwards. The end cap is held in the upper grip of a TG74 adjustable rear face grip and the tensile force required to remove the plastic cap is measured.

The force required to expel fluid from the syringe is measured by clamping the syringe so that it passes down through the hole. A removable bowl is used to receive the fluid expelled from the syringe.  For the larger syringe this bowl is positioned on the bottom plate of the jig. For the smaller syringes it is positioned on the rails. The compression piston is brought down to the engage the top of the syringe plunger. The end cap is removed and the force required to push out the fluid is measured.

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Note for Editors 

Lloyd Instruments is a unit of the AMETEK Measurement & Calibration Technologies Division. Chatillon is a registered trademark of AMETEK, Inc.  AMETEK, Inc. is a New York Stock Exchange-listed company and a leading global manufacturer of electronic instruments and electric motors with annual sales of $2.1 billion.  Visit www.lloyd-instruments.com and www.chatillon.com for more information.

Further Enquiries:  

Suzanne Sharpe, Lloyd Instruments Ltd. 12 Barnes Wallis Road, Segensworth East, Fareham, Hants PO15 5TT UK. Tel. +44 (0)1489 486399  Fax. +44 (0)1489 885118 http://www.lloyd-instruments.com E-mail Suzanne.sharpe@ametek.co.uk

Press Enquiries: 

Denis Bulgin, In Press Public Relations Ltd. PO Box 24, Royston, Herts, SG8 6TT UK. Tel: +44 (0)1763 262621 http://www.inpress.co.uk E-mail: denis@inpress.co.uk