Certified Reference Material

KLEN International manufacture and supply certified reference material for use in monitoring and testing the accuracy of laboratory analysis of minerals and ores. Each CRM batch is manufactured in in accordance with the relevant ISO Guides and is analysed by multiple laboratories worldwide as part of a round robin certification programme. Product information is available via the link below.


Klen became ISO 17034 Accredited in 2018.

Pack Sizes:
2kg Jars
10g sachets
30g Sachets
50g Sachets
Tailored solutions available upon request