Dear colleagues,
It is our pleasure to invite you to take part in proficiency testing № PTS 23/04
by means of an interlaboratory comparison. The proficiency testing will include the laboratory activity “testing”.
The subject of testing will be product “Bitumen” 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
Hardened concrete
Testing
| Number of participantions | Code | Name | Characteristics |
|---|---|---|---|
* EN 1426 |
Bitumen and bituminous binders - Determination of needle penetration. |
Penetration |
|
* EN 1427 |
Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method. |
Softening point |
|
* EN 15326+A1 |
Bitumen and bituminous binders - Measurement of density and specific gravity - Capillary-stoppered pyknometer method. |
Density |
|
* EN 12592 |
Bitumen and bituminous binders - Determination of solubility. |
Solubility |
|
* EN 12593 |
Bitumen and bituminous binders - Determination of the Fraass breaking point. |
Fraas breaking point |
|
* EN ISO 2592 |
Petroleum and related products - Determination of flash and fire points - Cleveland open cup method. |
Flash point |
* All tests will be carried out according to the last valid versions of the pointed standards!