PTFE Syringe Filter 0.22 μm 13 mm - pack of 10 - Hydrophilic
Johnson Universal Indicator Paper Reel 5m x 7mm Test paper Ph 1 - 14. Wide range of working temperatures: 180 - 260 °C. Low surface friction coefficient: 0.1. Accurate analysis - HPLC certified for low levels of UV absorbing extractables.