PT Provider PTS Bulgaria invites you to take part in proficiency testing testing scheme № 25/06-T-1 by means of an interlaboratory comparison.
The PT scheme is in accordance with ISO/IEC 17043:2023 and includes the laboratory activity “Testing” of 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 September 15, 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”.
Object of the proficiency testing
AGGREGATE
TESTING
| Code of the standаrd | Parameter | Number of participations |
|---|---|---|
*EN 933-1 |
Particle size distribution /#16 mm, #12,5 (12) mm, #8 mm, #4 mm, #2 mm и #1 mm/ (three determinations) |
|
*EN 1097-6, item 7 (Wire basket method) |
Apparent particle density, ρа (three determinations) |
|
*EN 1097-6, item 7 (Wire basket method) |
Water absorption, WA24 (three determinations) |
|
*EN 1367-1 |
Resistance to freezing and thawing, F (three determinations) |
|
*EN 1367-2 |
Magnesium sulfate value, MS (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.
⚠️Important: The preparation of the samples shall be performed according to the last valid version of EN 932-2.