Dear colleagues,
It is our pleasure to invite you to take part in proficiency testing № 24/01-T-1 by means of an interlaboratory comparison. The proficiency testing will include the laboratory activity “testing”. The subject of testing will be product “Aggregates” 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
Testing
| Code of the standаrd | Parameter |
|---|---|
*EN 1097-6, item 8 (pyknometer method) |
Apparent particle density, ρа (three determinations) |
*EN 1097-6, item 8 (pyknometer method) |
Water absorption, WA24 (three determinations) |
*EN 1097-3 |
Loose bulk density (three determinations) |
*EN 1367-2 |
Magnesium sulfate value (two determinations) |
* The tests will be carried out according to the last valid versions of the indicated standards!
Note: The product and the parameters are under the scope of accreditation of PT Provider PTS Bulgaria at PTS Bulgaria Ltd.