Air and Gases -Explosive Limits of Gases and Vapors-New Automotive Trailer Wiring and Connector Guide -- Updated images Chemistry and Physics Element and Element Property Tables -- Updated Periodic Table of Elements --. Major Update Elementary Particles -- Updated Computer ASCII and ALT Codes -- Major Update First Aid- Priorities --Updated CPR -- Updated Mouth to Mouth Breathing -- Updated Hypothermia -- Updated Poisoning --Updated Small Animal Artificial Respiration and CPR -- New Blood Type Distribution in the USA --New Holidays --Updated American Sign Language -- New Military Rank and Grade – Air Force, Army, Navy, Marines --Updated State Population --Updated North American Area Codes -- Updated Worldwide Area Codes -- Updated Dialing Instructions for Countries -- Updated Airports USA -- Updated Major World Airports -- Updated Airline Two Letter Codes --Updated Airline Toll-Free Phone Numbers --Updated Lost Credit Card Phone Numbers -- Updated Car Rental Phone Numbers -- Updated Country Codes – 2 and 3 Letter -- Updated General Science - Body Mass Index – CDC, Atlanta GA -- New Fuels and Combustion Temperatures -- New Flame or Material Color Combustion Temperatures -- New Animal Names – Groups, Male, Female, Baby --New Geology - Gold, Silver and Diamond Classification -- Updated Earthquakes – The Largest and Deadliest --New Volcanic Explosive Index --New Money - Currency Exchange Rates -- Updated Pumps and Tanks - Capacities of Large Tanks and Cylinders -- New Propane Tank Sizes -- Updated Surveying and Mapping -Magnetic Declination Map -- Major Update Weather -Dew Point Tables C and F -- New Welding -SMAW Electrode Amperages -- Major Update SMAW Electrode Amperages -- Major Update SMAW Electrode Amperages -- Major Update SMAW Electrode Amperages -- Major Update Electrode Brand Conversion --Major Update