


PT Scheme Service Provider
PT Schemes entail the organisation, development and evaluation of tests of the same items or similar items by several laboratories, according to predefined conditions.

Reference Material Sales
We can prepare reference materials in batches from 20kg - 1000kg depending on the client's requirements and application.

ISO 17043 Accredited
Qotho is SANAS ISO 17043 Accredited for Proficiency Schemes.

ISO 17034 Accredited
Qotho is SANAS ISO 17034 Accredited for Reference Material.





Latest News
PT Schemes have Global Reach
Currently servicing over 196 laboratories in Africa and various International countries.
Proven proficiency benefits operations
Globally, low commodity prices are putting pressure on mining companies to ensure that all aspects of their operations are performing at the highest standard possible,
We have Moved!
36 Pelindaba Road, Broederstroom, Madibeng, North West Province PO Box 13 Broederstroom 0240 South Africa Phone: +27 (0) 87 004 3200
ISO 17034 Accredited Certified Reference Material Producer
In the analytical chemistry field, certified reference materials are used as standards that are inserted as blind samples within a batch of samples during analysis.