{"id":10330,"date":"2026-09-26T01:15:41","date_gmt":"2026-09-26T01:15:41","guid":{"rendered":"https:\/\/ifanultra.com\/ppr-resin-tds-how-to-read.html"},"modified":"2026-09-26T01:15:41","modified_gmt":"2026-09-26T01:15:41","slug":"ppr-resin-tds-how-to-read","status":"publish","type":"post","link":"https:\/\/ifanultra.com\/es\/ppr-resin-tds-how-to-read.html","title":{"rendered":"PP-R Resin Datasheet: How to Read MFR, MRS and \u03c3LPL"},"content":{"rendered":"

ISO 12162:2009, which turns long-term test data into pipe-resin grade numbers, says its classification “does not qualify a material for a specific application.” Keep that sentence in mind when a supplier sends a PP-R resin datasheet (TDS) as proof of what went into your pipe.<\/p>\n

Here is the short answer. The MFR line identifies the flow grade, and for pipe it only counts at 230 \u00b0C and 2.16 kg, where ISO 15874-2:2013 caps the compound at 0.5 g\/10 min. The MRS line, the “80” in PP-R 80, is the 97.5 % lower confidence limit of strength at 20 \u00b0C over 50 years, rounded down. The other lines are typical values for the grade. None of them proves hot-water performance, or that your lot was made from that grade. The lot certificate and the pipe test report do that.<\/p>\n

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Key Takeaways<\/p>\n