This is a powerful, unified metrology search engine with the advantages of full-text and multi-language searching, and dynamically generated tables of contents based on each search results page, to allow an easy means of refining the search query.

As the BIPM's primary means of communication, our website is one of the world's reference portals for metrology. It is used not only by our primary community (metrologists in National Metrology Institutes (NMIs)), but by other scientists, accreditors, regulatory bodies, industrialists, teachers, students, editors, historians, journalists and others.

The BIPM website contains a wealth of information. It is closely integrated with the BIPM key comparison database (KCDB), the primary product of the CIPM MRA, and has recently been joined by a database of higher-order reference materials and reference measurement methods and procedures for laboratory medicine and in vitro diagnostics (the JCTLM-DB).

As one of the niche services offered by the BIPM, the BIPM's search engine also offers a search across the websites of all institutes participating in the CIPM MRA. Increasing the ease with which relevant information can be retrieved on the BIPM website, the KCDB (and other databases) and the sites of the NMIs, is an important part of our role as a portal promoting metrology.

Our new search engine uses the product "exalead one:enterprise" installed on two linux servers fronted with a load balancer to provide fault tolerance. The software comprises seven principal programmes running continuously, with thirty-two exploring programmes to crawl the BIPM and NMI websites. We currently have twenty-five distinct sources, covering web pages, file directories, and databases. Tailoring the product to the specific needs of the BIPM involved 8000 lines of coding and, during the debugging phase, the collection of 10 Gbytes of logs per day.

We encourage use of the BIPM metrology portal by the metrology community at large, and look forward to your feedback.