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RelatonIec is a Ruby gem that implements the IsoBibliographicItem model.

You can use it to retrieve metadata of IEC Standards from, and access such metadata through the IecBibliographicItem object.


Add this line to your application’s Gemfile:

gem 'relaton-iec'

And then execute:

$ bundle

Or install it yourself as:

$ gem install relaton-iec


Refer to the usage interface is identical.


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to [](

Exceptional Citations

This gem retrieves bibliographic descriptions of ISO documents by doing searches on the ISO website,, and screenscraping the document that matches the queried document identifier. The following documents are not returned as search results from the ISO website, and the gem returns manually generated references to them.

  • IEV: used in the metanorma-iso gem to reference Electropedia entries generically. Is resolved to an "all parts" reference to IEC 60050, which in turn is resolved into the specific documents cited by their top-level clause.


Bug reports and pull requests are welcome on GitHub at


The gem is available as open source under the terms of the MIT License.