• Material: polypropylene or PMP (TXP) • Volumetric flasks, without meniscus which makes them very easy to read • Gauged with gravimetric method at 20 °C in Class B • Moulded from one single piece of polypropylene • Very transparent, particularly with liquids • Narrow neck geometry with high reading precision • Autoclavable and chemically cleaner than glass as they do not give rise to chemical transfers or absorptions • Supplied with caps