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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Climate change Standards and specifications support climate targets
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Standards [CURRENT]

ETS 300196-4
Integrated Services Digital Network (ISDN) - Generic functional protocol for the support of supplementary services - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user

Edition 1998-04

Original language English

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