PT Provider PTS Bulgaria invites you to take part in proficiency testing № 25/01-T-1 by means of an interlaboratory comparison. The proficiency testing will include the laboratory activity “testing”.
The subject of testing will be product Aggregate under standard methods and parameters, indicated in the table below.
The product and the parameters are under the scope of accreditation of PT Provider PTS Bulgaria at PTS Bulgaria Ltd.
The submission period is until April 30, 2025.
⚠️After filling out and submitting the application in word format, the date of application will be considered the date of receipt of the completed application at the e-mail specified in it!
⚠️When applying through the electronic form on the website /electronic application/, the date of receipt of the automatic e-mail with the data filled in by you is considered the date of application.
You may find more details in the Detailed PT plan and the Invitation for participation in section “Documents for participation”.
Subject of the proficiency testing
Aggregate
Testing
| Code of the standаrd | Parameter | Number of participations |
|---|---|---|
*EN 933-3 |
Overall flakiness index (three determinations) |
|
*EN 933-4 |
Shape index (three determinations) |
|
*EN 1097-1 |
Resistance to wear - micro Deval coefficient (three determinations) |
|
*EN 1097-2, item 5 |
Resistance to fragmentation - Los Angeles coefficient (three determinations) |
|
*EN 1097-3 |
Loose bulk density (three 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.
⚠️Important: The reduction of the samples into test specimens shall be performed according to EN 932-2.