PMP (TPX®) provettes. Crystal clear. Conforms to ISO 6706 - 1981 (E) and BS 5404 Part 2 1.977; totally clear; autoclavable; can be used for liquids up to 170°C.. No wetting; no meniscus; permanent graduations are moulded in for reproducibility. Excellent chemical resistance; pentagonal base for added stability. SUITABLE FOR FOODSTUFF