Conforms to ISO 67061981 (E) and BS 5404 Part 2 1977 with special polypropylene giving very high translucency; autoclavable to 121°C for 20 min; continuous work at 100°C. Permanent graduations are moulded in for reproducibility; no wetting; no meniscus. Excellent chemical resistance; pentagonal base for added stability. Suitable for contact with foodstuff.