Logo of TÜV SÜD NELTÜV SÜD National Engineering Laboratory (NEL) joined CO-LaN in 2002, as PPDS NEL, with Alan SCOTT as representative. When Alan retired from TÜV SÜD NEL in February 2008, Andy JOHNS served as representative till his own retirement and then Dermot McGINNIS was designated as representative in July 2012.

Physical Property Data Services (PPDS) has been one of the first thermodynamic servers adapted as a CAPE-OPEN Property Package.Used daily throughout the world for over 30 years, in the chemical, process, energy or pharmaceuticals sectors, PPDS allows users access to over 1,500 quality assured chemical compounds based on actual measured data. Its  calculation package has the flexibility to perform calculations of complex thermodynamic problems.

Alan SCOTT attended the 1st CAPE-OPEN European Conference back in February 2004 and, as mentioned in the report given then by Werner DREWITZ on the activities of the Thermo SIG, participated in these SIG activities even since the start of the SIG back in 2002. Alan was also present at the 2nd CAPE-OPEN European Conference held in February 2005. At the 3rd CAPE-OPEN European Conference, in March 2006, Alan presented on an industrial case study maling use of PPDS as a CAPE-OPEN application. Alan presented on “PPDS CAPE-OPEN development – Present Status and Future Plans” at the CAPE-OPEN 2007 Annual Meeting held in Heidelberg, Germany.

TÜV SÜD NEL helped CO-LaN with interoperability testing by providing a license of their PPDS software for such tests.

On December 23, 2020 Konrad Kuczynski, PPDS Section Leader at TÜV SÜD NEL since December 2015 informed CO-LaN that TÜV SÜD intended to resign from CO-LaN. The resignation notice was handed out on January 15, 2021. On February 11, 2021, CO-LaN Management Board consequently cancelled membership of TÜV SÜD NEL