Dear colleagues,
It is our pleasure to invite you to take part in proficiency testing № PTS 22/08-2 by means of an interlaboratory comparison.
The subject of testing will be product “Aggregates (fine or all-in)” 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
Aggregates (fine or all-in)
Testing
| Code of the standаrd | Parameter |
|---|---|
*EN 1097-5 |
Water content |
*EN 1097-3 |
Loose bulk density |
*EN 933-8+А1 |
Sand equivalent |
*EN 933-9 |
Methylene blue value |
*EN 933-1 |
Particle size distribution |
*EN 933-1 |
Fines content |
* All tests will be carried out according to the last valid versions of the pointed standards!