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ITU-T X.321
SF-98-19-2 (RP-790) -- Development of an Emissions Test Procedure for Unitary Combustion Engine-Driven Heat Pumps
BS CECC 90000:1985
BS 3A 109:1985
ITU-T G.804
BS 6L 16:1985
ITU-T D.140 Supplement 3
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