Dear Colleagues,
PT provider UCLSB invites you to take part in Interlaboratory Technical Project MC 08/2024. Test subjects will be: Filler, according to the pointed standards and parameters in the following table:
| Test subject | Code of the standard | Name of the standard | Tested parameters (characteristics) |
|---|---|---|---|
| Filler | EN 933-1 | Tests for geometrical properties of aggregates - Part 1: Determination of particle size distribution - Sieving method. | Particle size distribution #2mm,#1mm, #0.500mm, #0.250mm, #0.125mm , #0.063mm /ua/ |
| EN 933-9, AnnexA | Tests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test. | Assessment of fines – Methylene blue test /ua/ | |
| EN 1097-7 | Tests for mechanical and physical properties of aggregates - Part 7: Determination of the particle density of filler - Pyknometer method. | Particle density of filler – Pyknometer method /ua/ | |
| EN 933-10 | Tests for geometrical properties of aggregates - Part 10: Assessment of fines - Grading of filler aggregates (air jet sieving) | Particle size distribution of filler #2mm, #0.125mm , #0.063mm /ua/ | |
| EN 1097-5 | Tests for mechanical and physical properties of aggregates - Part 5: Determination of the water content by drying in a ventilated oven | water content | |
| EN 1744-1, clause 7 | Tests for chemical properties of aggregates - Part 1: Chemical analysis | Water-soluble chloride salts /ua/ | |
| EN 1744-1, clause 12 | Tests for chemical properties of aggregates - Part 1: Chemical analysis | Acid soluble sulfates /ua/ |
/ua/ - under accreditation, within the scope of accreditation of the PT provider; /oa/ - out of the scope of accreditation of the PT provider
- “Invitation for participation” (QF 4.4-3) in MC 08/2024;
- “Application form” (QF 4.4-4) for MC 08/2024;
- "Detailed plan for proficiency testing" (QF 4.4-1) for MC 08/2024;
Additional information regarding Interlaboratory Technical Project (ITP) MC 08/2024.
Deadline for accepting applications for participation: 15.10.2024;
• Sending the samples to the participants: by 12.11.2024 at the latest;
• Conducting the tests: 09.12- 12.12.2024
• Preparation of the final report: no later than 30.01.2025;
Detailed information will be given in the instruction for conducting the interlaboratory comparison and proficiency test QF 4.4-5. You will be informed about all other changes that may be imposed during the course of MC 08/2024 by e-mail.
Please, in case you have any questions, do not hesitate to contact us via e-mails sslsb@abv.bg or sslsb@yahoo.com!
*The date indicated as the start of the respective project is also the date from which the acceptance of participation requests begins.
** Requests for the relevant project, in English and Bulgarian, can be found in the "PT schemes" section of our website: https://ptprovider.sslsb.org/
*** The due date of the relevant project means that this is the deadline for the preparation of the report, unless otherwise stated in the instruction (QF 4.4-5).
Note : All participants will receive further instructions for the process of implementing the relevant PT scheme. The minimum number of participants for a parameter to be included in the relevant PT scheme is 5.