Since 1992, the IRSST has had a quality control program for fibre counting with samples originating from different Québec workplaces. According to the requirements of the official counting method, fibre counters must participate in an interlaboratory exchange program using samples that are representative of their industrial activities, thus allowing their efficiency to be verified. Every three months, the participating analysts receive four samples. After three successful consecutive exchanges, based on specific criteria, they receive a certificate confirming their efficiency. This remains in force as long as they participate in the program and meet these criteria. The list of recognized companies and counters available on the IRSST’s website is updated after each CQ Fibres’ round.
Important dates
For purposes of continuous improvement of our CQ Fibres Fiber Counting Quality Control program, the IRSST has organized the shipping of slides by dividing the participants into two groups. The groups have been randomly created to obtain a similar number of counters in each group. Since 2012, companies participate in CQ Fibres in a predetermined group. Note that a counter cannot participate in a round of the other group and that a company cannot change groups.
Group A
| Serial number |
2024-1
|
2024-2
|
2024-3
|
2024-4
|
| Deadline to add a new counter |
2024-01-05
|
2024-04-05
|
2024-07-05
|
2024-10-05
|
| Samples shipment |
2024-01-16
|
2024-04-15
|
2024-07-15
|
2024-10-15
|
| Deadline to submit results online |
2024-02-16
|
2024-05-15
|
2024-08-23
|
2024-11-15
|
| Reports available |
2024-03-15
|
2024-06-17
|
2024-09-16
|
2024-12-16
|
Group B
| Serial number |
2024-1
|
2024-2
|
2024-3
|
2024-4
|
| Deadline to add a new counter |
2024-02-14
|
2024-05-15
|
2024-08-15
|
2024-11-14
|
| Samples shipment |
2024-02-23
|
2024-05-24
|
2024-08-23
|
2024-11-22
|
| Deadline to submit results online |
2024-03-25
|
2024-06-25
|
2024-09-25
|
2025-01-03
|
| Reports available |
2024-04-25
|
2024-07-25
|
2024-10-25
|
2025-01-27
|
Any new requests to add a company, branch or counter must be received by the IRSST before the date of deadline to add a new counter at the beginning of the round. No additions may be made while a round is in progress.
Address
The CQ Fibres Team
Direction des laboratoires (Laboratory Division)
IRSST
505, De Maisonneuve Blvd. West,
12th floor
Montréal (Quebec) H3A 3C2