Proficiency testing programs
PTS 91a : Microbiological analyses of organic fertilizing materials: Multi-parameter enumeration
Details of the program
PTS created in 2018
ISO/IEC 17043 accredited by COFRAC
18 registered laboratories from 8 countries
Schedule
Sending date
Registration deadline
Code
Matrix
Weight
Accredited
Details
2025/10/20
2025/10/05
0191
Compost Multi-parameter enumeration
10 g
20/10/2025 00:00:00
20/10/2025 00:00:00
20/10/2025 00:00:00
20/10/2025 00:00:00
20/10/2025 00:00:00
20/10/2025 00:00:00
20/10/2025 00:00:00
2025/10/20
2025/10/05
0091
Temperature standard
20/10/2025 00:00:00
20/10/2025 00:00:00
2026/03/16
2026/03/01
0191
Compost Multi-parameter enumeration
10 g
16/03/2026 00:00:00
16/03/2026 00:00:00
16/03/2026 00:00:00
16/03/2026 00:00:00
16/03/2026 00:00:00
16/03/2026 00:00:00
16/03/2026 00:00:00
2026/03/16
2026/03/01
0091
Temperature standard
16/03/2026 00:00:00
16/03/2026 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