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The Organisation Internationale de Metrologie Legale (aka OIML) is an internationally based, intergovernmental treaty organization that promotes harmonization of legal metrology procedures for approval of legal measuring instruments and devices.

In regards to breath alcohol instruments, the OIML has released a ‘recommendation’ for Evidential Breath Alcohol Instruments under their R-126 document.  As a ‘recommendation’ this document is designed to provide guidelines for a minimum standard to approve evidential breath alcohol instruments.  The individual program must decide which of these procedures they will implement based on their unique breath testing needs.

The document can be obtained directly from OIML’s website by using the links below.


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