text: Soluforce RTP is tested and acknowledged by the following organisations:
  * DNV Certification D-2615 - Soluforce System 4" and 5" with in-line couplings and end fittings
  * ASTM - WK11803
  * API - RP 15S (oil field service)
  * ISO/TS 18226:2006 (gas service)
  * DVGW VP 642 (German gas service)
  * NYSEARCH project by the Northeast Gas Association (USA)