Protect against leakage, breakage, and contamination. Thermo Scientific™ Nalgene™ Class B Polymethylpentene (PMP) Volumetric Flasks with Screw Caps are calibrated "To Contain" and "To Deliver" at 20°C. Flasks are lighter in weight than glass, more transparent than polypropylene and offer excellent chemical resistance.
- Break resistance and excellent chemical resistance for years of dependable use in the lab
- Individually hand calibrated, permanent color graduation line and oval marking spot for ease in reading fluid levels
- No meniscus to confuse readings
- Polypropylene closure
- Meets ASTM™ E288 and ISO 384 Class B tolerances for consistent quality and dependability
Warning: Autoclavable but accuracy will be affected. Completely disengage threads or remove cap before autoclaving.