Dear colleagues,
It is our pleasure to invite you to take part in proficiency testing № PTS 22/08-1 by means of an interlaboratory comparison.
The subject of testing will be product “Construction soils” under standard methods and parameters, pointed below.
The product and the parameters are under the scope of accreditation of PT Provider PTS Bulgaria at PTS Bulgaria Ltd.
You may find more details in the Detailed PT plan and the Invitation for participation in section “Documents for participation”.
Subjects of the proficiency testing
Construction soils
Testing
| Code of the standаrd | Parameter |
|---|---|
*EN ISO 17892-1 |
Water content |
*EN ISO 17892-3, clause 5.1 (Fluid pycnometer method) |
Particle density |
*EN ISO 17892-12, clause 5.4 (Casagrande method) |
Liquid limit |
*EN ISO 17892-12, clause 5.3 (Fall cone method) |
Liquid limit |
*EN ISO 17892-12, clause 5.5 |
Plastic limit |
*AASHTO T 89 |
Liquid limit |
*AASHTO T 90 |
Plastic limit |
* All tests will be carried out according to the last valid versions of the pointed standards!