What is the meaning of the designations PE80 and PE100?

PE80 and PE100 meaning

The designations PE80 and PE100 are based on the long-term strength of the respective materials, known as the minimum required strength (MRS) in accordance with ISO 12162.

The designations are:

Minimum Required Strength (MRS)

The MRS is determined by performing regression analysis in accordance with ISO 9080 on the test data from the results of long-term pressure testing. The regression analysis allows for the prediction of the minimum strength for a specific service lifetime. The data is extrapolated to predict the minimum strength at 20°C and at the specified 50 year design lifetime. Full details of the analysis can be found in ISO 9080 .

References

• ISO 9080:2003 Plastics piping and ducting systems - determination of long term hydrostatic strength of thermoplastics materials in pipe form by extrapolation.
• EN ISO 12162:2009 Thermoplastics materials for pipes and fittings for pressure applications - Classification and designation - overall Service (Design) coefficient.

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