Specialists in calibrated scientific glassware

Burettes, Class A, All PTFE Key Stopcock

Manufactured in accordance with BS EN ISO 385: 2005. Precision Bore Borosilicate Glass, Interchangeable All PTFE Stopcocks.

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Product Capacity Graduations Tolerance
Code ml ml ± ml
BJ.961 10 0.02 0.02
BJ.962 10 0.05 0.03
BJ.963 25 0.05 0.03
BJ.964 25 0.10 0.05
BJ.965 50 0.10 0.05
BJ.966 100 0.20 0.10
CT.908 Works Certificate of Accuracy


Class A, Borosilicate Glass, Graduated Stem Only

Product Capacity Graduations Tolerance
Code ml ml ± ml
BJ.973 10 0.02 0.02
BJ.974 10 0.05 0.03
BJ.975 25 0.05 0.03
BJ.976 25 0.10 0.05
BJ.977 50 0.10 0.05
BJ.978 100 0.20 0.10

Stopcocks and Accessories

Code Description
WJ.920 Stopcock complete with Drawn Jet
WJ.923 Holding Collar, Black, package of 10
WJ.924 Key retaining “O” Ring, package of 10
WJ.925 Screw Lock Nut, package of 10
LK.926 Black Spanner, package of 10
GJ.927 Glass Jet, package of 5

Important Notice.

We are open for business and are continuing to supply essential glassware to our laboratory and pharmacy customers in this difficult period. We have introduced social distancing and protective methods to look after our staff in accordance with government guidelines. We will keep this website updated as changes occur. Thank you to all our customers and suppliers for your support.

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