Postal services - Quality of services - Measurement of the transit time of end-to-end services for single piece priority mail and first class mail
Edition 2020-07

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Edition 2016-05

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Edition 2023-01

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Edition 2014-02-15

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Edition 2005-09-01

Measurement of water flow in closed conduits. Tracer methods. Part vii:transit time method using radioactive tracers
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Measurement of gas flow in conduits. Tracer methods. Part 4: transit time method using radioactive tracers
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Postal services - Quality of service - Measurement of the transit time of end-to-end services for bulk mail
Edition 2024-03-01

Postal services - Quality of services - Measurement of the transit time of end-to-end services for single piece priority mail and first class mail
Edition 2020-10-15

Postal services - Quality of service - Measurement of the transit time of end-to-end services for single piece non-priority mail and second class mail
Edition 2016-07-01