Gas Abbreviations and Acronyms
- HLIDHydrocarbon Leak and Ignition Database
- HLOHelicopter Landing Officer
- HLOHeavy Load-Out
- HLOHeavy Load Out
- HMAXMaximem Wave Height
- HMBHeat and Material Balance
- HMUHydrogen Manufacturing Unit
- HNHeavy Naphtha
- HNGSHostile Naturalpgamma-Ray Spectrometry
- HNOHigh Nitric Oxide
- HOAHead of Agreement
- HOAHeads of Agreement
- HOASHeads of Agreements
- HOEHouston Offshore Emgineering
- HPHindustan Petroleum
- HP/HTHigh Pressure / High Temperature
- HP/IPHigh Pressure And/Or Intermediate Pressure
- HPAHelium Privatisationeact
- HPCHigh Pressure Cylinder
- HPIHydrocarbon Processing Industry
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