CNG implementation in the Netherlands, based on OIML R 139

Looking to the international OIML platform and more specific to the national legislation of the Netherlands regarding CNG dispensers, an interesting update is being made. After the publication of the Recommendation for CNG Dispensers (OIML R 139) in 2014, a lot of effort was put into preparing the Test Report Format in 2015. Since the Test Report Format was published in November 2015, it is possible for you as a manufacturer to apply for the OIML Certificate of Conformity, generating more acceptance worldwide.

In the same timeline as the OIML, Dutch authorities worked on implementing CNG into their national legislation. The goal was to give CNG dispensers the same sort of legislation as is already the case with for instance level gauges (OIML R 85). After several internet consultations the legislation is approved and will be implemented on the 1st of November 2016.

Legislation CNG dispensers in the Netherlands

As of this date, only CNG dispensers with a national approval in the Netherlands, can be put on the market. These approvals will be based on the OIML R 139 (2014). If all instruments are already tested and approved according to OIML R 139 (2014) this will be a document review and evaluation resulting in an Evaluation report/national approval. However, most instruments are tested according to OIML R 139 (2007) and since there are some changes between the old and new R 139, these instruments need to be updated and tested. Also, when comparing for instance with instruments tested according to OIML R 117 (liquids other than water) the test levels are different. So also in this case, the instrument probably needs to be updated.

Wim Volmer

Wim Volmer

Business Development Manager Oil & Gas , Netherlands

Expert on all aspects related to the measurement of liquids and gases and their properties. Member of several OIML and Welmec groups, WIB Field Instruments and the NEN Flow Committee.