schford

We all use some of those dreaded acronyms and abbreviations - have you wondered what they were but did not want to ask?

Well here all (hopefully) might be revealed.
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7P's or PPPPPPP - Proper Planning and Preparation Pevents Piss Poor Performance

AAS - Alternate Air Source
ADV - Automatic Dilutant Valve
ATA - Atmospheres Absolute
AP - Absolute Pressure / Ambient Pressure (also company behind YBOD!)
APD - Ambient Pressure Diving (Inspiration/Evolution)
ANDI - American Nitrox Divers Incorporated
ATM - Atmosphere

BCRA - British Cave Research Association
BOB - Bail Out (re-)Breather
BOV - BailOut Valve, OC integrated second stage in Dive/Surface Valve, aka OC/DSV
BSAC - British Sub-Aqua Club

CC - Closed Circuit
CCBA - Closed Circuit Breathing Apparatus
CCR - Closed Circuit Rebreather
CDG - Cave Diving Group
C-L - Cis-Lunar Development Laboratories
CL - counterlung
CO - Carbon Monoxide
CO2 - Carbon Dioxide

DAN - Diver's Alert Network
DCI - Decompression Illness
DCS - Decompression Sickness
DEMA - Diving Equipment Manufacturers Association
DIR - Do(ing) It Right
DM - Dive Master (PADI)
DO - Diving Officer
DPV - Diver Propulsion Vehicle
DSMB - Delayed Surface Marker Bouy
DSV - Dive/Surface Valve
DV - Demand Valve

EAD - Equivalent Air Depth Effective Air Depth
EAN - Enriched Air Nitrox
EANx - Enriched Air Nitrox
END - Equivalent Narcotic Depth
eCCR - electronically controlled closed circuit rebreather

FFM - Full Face Mask
FFW - Feet of Fresh Water
FSW - Feet of Salt Water

GPS - Global Positioning System
GUE - Global Unterwater Explorers

HID - High Intensity Discharge
HH - HammerHead electronics made by Juergensen Marine
HP - High Pressure
HPNS - High Pressure Nervous Syndrome

IANTD - International Association of Nitrox and Technical Divers
ISC - Innerspace Systems Corporation (Megalodon)
ITDA - Internation Technical Diving Association

KISS - Keep It Simple, Stupid!

LIDS - London International Dive Show
LP - Low Pressure

MDT - Maximum Dive Time
MFW - Metres of Fresh Water
MGR - Mixed Gas Rebreather
MOD - Maximum Operating Depth
MSW - Metres of Salt Water
mCCR - manually controlled closed circuit rebreather

N2 - Nitrogen
NACD - National Association for Cave Diving
NAUI - National Association of Underwater Instructors
NDL - No Decompression Limit
NOAA - National Oceanic and Atmospheric Administration
NSS-CDS - National Speleological Society - Cave Diving Section

O2 - Oxygen
OC - Open Circuit
OC/DSV - Open Circuit integrated second stage in Dive Surface Valve aka BOV
OMG - manufacturer Azimth, Nemesis, C/P96
OPV - Over Pressure Relieve Valve
OTT - Oxygen Tolerance Test
OTU - Oxygen Toxicity Unit

PADI - Professional Association of Diving Instructors
PP - Partial Pressure
PSI - Pounds per Square Inch
PVR-BASC - Passive Variable Respiratory-minute-volume Biased Addition Semi Closed (rebreather)
pSCR - passive gas addition semi-closed circuit rebreather

RMV - Respiratory Minute Volume

SC - Semi-Closed
SCR - Semi Closed Rebreather
SCUBA - Self-Contained Underwater Breathing Apparatus
SI - Surface Interval
SMI - Steam Machines Incorporated (PRISM)
STROKE - Society of Technical Risk-Optimizing Karst Explorers

TDI - Technical Diving International

UBA - Underwater Breathing Apparatus

VENTID - Vision Ears Nausea Twitching Irritation Dizziness

WKPP - Woodville Karst Plain Project (not to be confused with the Klu Klux Klan)
WOB - Work of Breathing

YBOD - Yellow Box of Death / Debt (Inspiration)


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If you know of any others please respond to this post and I will edit mine.