These are used to maintain and audit evidential breath alcohol equipment in the United Kingdom and the Irish Republic.
The standards require a suitable breath alcohol simulator – we recommend the Guth Model 2100.
Liquid standards are supplied with analyses traceable to UKAS national primary standards (analysed by LGC Limited).
Certified liquid standards have a shelf life of 2 years from the date of analysis, and their caps are fitted with security seals. The values we make on a regular basis are 22, 35, 50, 140 and 200 microgram/100 ml air. Liquid standards can be delivered by road transport worldwide.
Small quantities of surplus stock are available, however for larger orders please contact us for a quote.