Flasks are calibrated “To Contain” and “To Deliver” at 20°C to protect against leakage and breakage. They are lighter in weight than glass and offer excellent chemical resistance. PPCO is shatterproof for lab safety, while PMP is more transparent than polypropylene and offers excellent chemical resistance.
- PPCO (Polypropylene CoPolymer) or Polymethylpentene (PMP)
- Hand calibrated
- No meniscus to confuse readings
- Permanent color graduation lines
- Leakproof
- Oval marking spot for ease in reading levels
- 77089 has an extra line at 203mL for BOD & DO determinations
- Printing is durable & won't wear off
- Can be autoclaved, but accuracy will be affected