Proficiency testing programs
PTS 28 : Patulin determination
Details of the program
PTS created in 2004
ISO/IEC 17043 accredited by COFRAC
40 registered laboratories from 12 countries
Schedule
Sending date
Registration deadline
Code
Matrix
Weight
Accredited
Details
2025/11/03
2025/10/19
0328
Stewed apples
200 g
03/11/2025 00:00:00
03/11/2025 00:00:00
2026/02/02
2026/01/18
0628
Pommeau
200 mL
02/02/2026 00:00:00
02/02/2026 00:00:00
2026/04/13
2026/03/29
0228
Apple concentrate
200g
13/04/2026 00:00:00
13/04/2026 00:00:00
Shipment information
Samples sent by express carrier
DAP Incoterm
Delivery of samples in Europe + USA at D+1
Other countries between D+2 and D+5
Samples marked with
are sent frozen / refrigerated
Matrices and analytes may be changed or removed for technical or scientific reasons.
Some samples are sent frozen / refrigerated