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Schedule + Costs: Gas Measurement & Gas Cylinder Proficiency Testing Scheme
2024 Schedule:
Task |
Deadline / Date |
Round 22 Registration Opens |
2nd January 2024 |
Round 22 Registration Deadline |
21st May 2024 |
Round 22 Visit to NPL |
9th to 12th July 2024
16th to 19th July 2024
2nd week
depending on demand |
Round 22 Results Submission |
10 working days after testing |
Round 22 Report Issued |
19th September 2024 |
The Gas Measurement & Gas Cylinder Scheme will be conducted at NPL. Measurements of three test concentrations and gas cylinders will be completed in one day. The details for testing on the day can be found in the individual protocols located at: Forms and Protocols.
Range of concentrations for Gas Measurement Component:
Pollutant |
Maximum |
Minimum |
Unit |
SO2 |
100 |
5 |
PPM |
NO |
190 |
10 |
PPM |
NO2 |
60 |
2 |
PPM |
CO |
100 |
5 |
PPM |
C3H8 |
9.9 |
1 |
PPM |
O2 |
17 |
2 |
% |
H2O |
20 |
1 |
% |
The price for participation of a single test team in the Gas Measurement & Gas Cylinder Scheme is £3,820.00 + VAT.
Test teams may report up to 2 instruments per determinand for both the Gas Measurement and Gas Cylinder components.
Participants will be invited to set up instrumentation the day before testing, between 4pm and 6pm only.
Companies participating in the Scheme will be listed the following year on this website. An option to opt out is available when registering.
Please note that NPL is within the ULEZ zone and it is the responsibility of participants to check if they are required to pay the fee on days when they attend the NPL site. Please see the TfL website for more details.
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