| AAE | American Association of Engineers |
| ACI | American Concrete Institute |
| ACRI | Air Conditioning and Refrigeration Institute |
| A-E | Architect-engineer |
| AEC | American Engineering Council |
| AESC | American Engineering Standards Committee |
| AFFFA | American Forged Fitting and Flange Association |
| AIDD | American Institute of Design and Drafting |
| AIME | American Institute of Mechanical Engineers |
| AISC | American Institute of Steel Construction |
| AISE | Association of Iron and Steel Engineers |
| AISI | American Iron and Steel Institute |
| AMAA | Adhesives Manufacturers Association of America |
| AMCA | Air Moving and Conditioning Association |
| AMFIE | Association of Mutual Fire Insurance Engineers |
| AMICE | Associate Member of Institute of Civil Engineers |
| ANS | American Nuclear Society |
| ANSI | American National Standards Institute |
| API | American Petroleum Institute |
| ARI | Air Conditioning and Refrigeration Institute |
| ASBC | American Standard Building Code |
| ASCE | American Society of Civil Engineers |
| ASCEA | American Society of Civil Engineers and Architects |
| ASCHE | American Society of Chemical Engineers |
| ASE | Amalgamated Society of Engineers |
| ASEA | American Society of Engineers and Architects |
| ASEE | American Society of Engineering Education |
| ASHACE | American Society of Heating and Air-Conditioning Engineers |
| ASHRAE | American Society of Heating, Refrigerating and Air-Conditioning Engineers |
| ASME | American Society of Mechanical Engineers |
| ASNE | American Society of Naval Engineers |
| ASRE | American Society of Refrigeration Engineers |
| ASSE | American Society of Safety Engineers |
| ASTM | American Society for Testing and Materials |
| ASWG | American steel and wire gauge |
| AWG | American wire gauge |
| AWS | American Welding Society |
| AWWA | American Water Works Association |
| BHN | Brinell hardness number |
| CAD | Computer-aided design |
| CADD | Computer-aided design drafting |
| db | Dry bulb |
| DCCP | Design change control program |
| DCEA | Directory of Civil Engineering Abbreviations |
| DCN | Design/drawing change notice |
| DIN | Deutsches Institu fu¨r Normung; German Standards Institute |
| DIPRA | Ductile Iron Pipe Research Association DIS Ductile Iron Society |
| EJMA | Expansion Joint Manufacturers Association |
| FCI | Fluid Controls Institute |
| FMA | Forging Manufacturers Association |
| gpm | Gallons per minute |
| gps | Gallons per second |
| HI | Hydraulic Institute |
| HVAC | Heating, ventilating, and air conditioning |
| IAEE | International Association of Earthquake Engineers |
| IFHTM | International Federation for the Heat Treatment of Materials |
| IFI | Industrial Fasteners Institute |
| IGSCC | Intergranular stress corrosion cracking |
| ISA | International Standards Association; Instrument Society of America |
| NACE | National Association of Corrosion Engineers |
| NAPE | National Association of Power Engineers |
| NASE | National Association of Stationary Engineers |
| NASPD | National Association of Steel Pipe Distributors |
| NCPI | National Clay Pipe Institute |
| NFPA | National Fire Protection Association |
| NIMA | National Insulation Manufacturers Association |
| NPT | National Pipe Taper |
| NSPE | National Society of Professional Engineers |
| NSSS | Nuclear steam system supplier |
| OBE | Operating-basis earthquake |
| OSHA | Occupational Safety and Health Act, or Administration |
| PACE | Professional Association of Consulting Engineers |
| PFI | Pipe Fabrication Institute |
| PJA | Pipe Jacking Association |
| PLCA | Pipe Line Contractors Association |
| ppb | Parts per billion |
| PFMA | Pipe Fittings Manufacturers Association |
| PPI | Plastic Pipe Institute |
| ppm | Parts per million |
| PPMS | Plastic Pipe Manufacturers’ Society |
| PRI | Plastics and Rubber Institute |
| RWMA | Resistance Welding Manufacturers’ Association |
| SAE | Society of Automotive Engineers |
| SCC | Stress corrosion cracking |
| SMA | Solder Markers’ Association; Steel Manufacturers’ Association |
| VMA | Valve Manufacturers’ Association |
Acronyms and Abbreviations
Prabhu TL is an author, digital entrepreneur, and creator of high-value educational content across technology, business, and personal development. With years of experience building apps, websites, and digital products used by millions, he focuses on simplifying complex topics into practical, actionable insights. Through his writing, Dilip helps readers make smarter decisions in a fast-changing digital world—without hype or fluff.
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