PT SCHEMES
China NIL Research Center for Proficiency Testing takes great
pleasure in informing you that we provide some international
proficiency testing schemes in 2024. Furthermore, many perennial
proficiency testing schemes will also be provided according to the
requirement of internal and international laboratories.

- PTS PROGRESSRegistration for 2024 PT schemes is now open. Please join us2023-11-07
The 2024 pt schemes are now available to order
- PTS PROGRESSCNCA-22-I01 and CNCA-22-I02 are now open for registration2022-09-07
“CNCA-22-I01 Determination of TFe, SiO2, P, S in iron ore" and " CNCA-22-I02 Determination of SiO2, CaO, MgO, Fe2O3, Al2O3 in limestone" are now open for registration
- PTS PROGRESSSamples for NIL PT-3037-1 NIL PT-3099-1 NIL PT-3427-1 NIL PT-3430-1 NIL PT-3433-1 NIL PT-3429-1 have been distributed to participating laboratories2022-05-16
Samples for NIL PT-3037-1 NIL PT-3099-1 NIL PT-3427-1 NIL PT-3430-1 NIL PT-3433-1 NIL PT-3429-1 have been distributed to participating laboratories
- PTS PROGRESSSamples for NIL PT-3100-1 NIL PT-3041-1 NIL PT-3435-1 NIL PT-3032-1 NIL PT-3033-1 have been distributed to participating laboratories2022-04-15
Samples for NIL PT-3100-1 NIL PT-3041-1 NIL PT-3435-1 NIL PT-3032-1 NIL PT-3033-1 have been distributed to participating laboratories
- PTS PROGRESSThe first samples of the 2022 pt schemes will be sent out in April2022-03-24
The first samples of the 2022 pt schemes will be sent out in April