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STOPPERS RUBBER BS2775 SOLID NO 43 PK 5Rubber Stoppers to BS2775. Each stopper has a moulded in number, corresponding to the bottom diameter in millimetres. Hole drilling Natural rubber stoppers are available pre drilled. Where specified the hole diameter will be sizes: 3 and 4: supplied solid only 5 to 8: 1 hole of 3mm 9 to 105: 1 hole of 5mm 15 to 105: 2 holes of 5mm Neoprene rubber stoppers are available pre drilled to special order. Hole diameters are as given for natural rubber

2 Red 2000 to 10000 10 0

Two point calibration at pH4/10 and pH7 using offset and slope screw trimmers

Analogue energy regulator maintains boiling without violent agitation or excessive steam

Coal/Coke Test Products

Note: MUST NOT be used to lubricate oxygen cylinder valves

general purpose combination electrode and batteries

mm Polycap 36 HD 260 70 6-10 66 x 48

thick wall and robust hexagonal foot

mm 1200 (1726) width

true images

With manual vial stoppering device

aqueous samples from Stomacher® bags