All Slotted Weights are calibrated here at JWS to the specification listed below:

M1 is the most accurate at +/-25mg.

If you want the test weight independently verified select 'Trading Standards Stamped'. Remember to add a Trading Standards Certificate to your basket available back on the Slotted Weights page where you can also purchase a UKAS Certificate and JWS Certificate of Conformity.

Only one Certificate is needed per batch of weights on the same order.

0.5 Kg Slotted Test Weight M1, M2 or M3

Verified by Trading Standards?
Calibration Option

    James W Shenton Ltd

    Tinsley Street 

    Great Bridge 


    DY4 7LQ

    Tel:  0121 557 5124


    For further services and information go to:


    Trading Terms & Conditions with James W Shenton Ltd 


    Test Weights

    Traceable to National Standards. 


    Made in the

    West Midlands, UK.

    Certificated by Trading Standards




    Copyright James W Shenton Ltd