Rating
| Concentration | 20 °C | 50 °C | Remark |
|---|---|---|---|
| 10 % SO3 | D | D |
Materials rated A or B at 20 °C
Based on the row for 10 % SO3, 20 °C.
- Fluoropolymers
- PTFE A, FEP A
- Elastomers
- Viton (FPM) A
- Metals
- SS 316 A, SS 304 A, Aluminium A
About PMP
Polymethylpentene (TPX) is a transparent polyolefin used for labware. It resists many acids and alkalis, while aromatic and chlorinated solvents and strong oxidisers attack it.
Rating scale
- A very good resistance
- B good resistance
- C limited resistance
- D not resistant
- – no data
- K no general statement possible
A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.
About this data
The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.
A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.