Test Tubes With Rims and Medium Walls

High quality test tubes designed and constructed for optimum performance. Manufactured from Pyrex borosilicate glass which gives superior performance to neutral borosilicate and soda-lime glass - Allows use at high temperatures - Excellent resistance to chemical attack. Tubes up to 12mm dia. are 1.0mm wall thickness, larger sizes are 1.2mm thick.
Conforms to ISO 4142.

Available in:
(Dia)12mm x (L)75mm
(Dia)12mm x (L)100mm
(Dia)16mm x (L)125mm
(Dia)16mm x (L)150mm
(Dia)18mm x (L)180mm
(Dia)18mm x (L)150mm

Available in packs of 10 and 100.

MBL Burettes PTFE Stopcock Class B

Complies with BS 846. Economically priced! Graduations in easy to read blue enamel. Grease-free PTFE stopcock (interchangeable). Manufactured from soda-lime glass.
Available in 10ml, 25ml and 50ml capacities.