Pocket Ref 4th edition. The concise all-purpose pocket-sized reference book featuring abundant information on many subjects, hundreds of tables, maps, formulas, constants and conversions. If you need to know it, it is in this book! From the Back Cover Preface and Personal Information Intro Trade Names, Trade Marks, and References Air and Gases Composition of Air Physical Properties of Air Densities of Gases Standard Atmosphere Definition General Gas Laws & Formulas Density of Moist Air Elevation vs. Air & Water Properties Dry Air Specific Heat & Sound Velocity at 1 Atmosphere for Various Temperatures Dry Air Specific Heat at 20C Constant Temperature and Various Pressures Air Tool CFM & PSI Requirements CFM vs. PSI for Various Nozzle Sizes Air Hose Friction & Pressure Loss Air Line Recommended Sizes Air Receiver Capacities Air Pollution Safe Limits Automotive Antifreeze Table Spark Plug Spark Plug Lead-Acid Battery Specific Gravity/Charge Oil Viscosity vs. Temperature Auto Headlight Warning Automotive Air Conditioning Automotive Electric Wiring Tire Size vs. Load Rating Tire Manufacturer Codes Tire Size Coding Load Range vs. Ply Rating Automotive Formulas Carpentry and Construction Softwood Lumber Sizes Softwood Lumber Grading Hardwood Lumber Size and Grade Wood Moisture Content Plywood & Panel Grading Wood Characteristics Insulation Value of Materials Maximum Floor Joist Spans Douglas Fir - Larch Group Hemlock,-Fir Group Spruce- Ping Group Southern Pine Group Redwood Group Strength of Wood Beams Wood Gluing Characteristics Concrete Mortar Chemistry and Physics Element Tables Element Properties Periodic Table of the Elements pH of Common Acids pH of Common Bases pH Indicators Elementary Particles Radioisotope Half Lives Uranium-238 Decay Series Galvanic Series of Metals in Seawater Computers Computer ASCII Codes IBM PC Memory Map IBM PC Hardware Interrupts Serial Ports DMA Channels Megabytes and Kilobytes Constants- Physical, Chemical and Math Electrical- Wire, Motors and Frames Copper Wire Current Capacity Ampacity vs. Temperature Correction Copper Wire Current Capacity (3 wire) Standard Lamp & Extension Cord Current Capacities Aluminum Wire Amp Capacity Ampacity vs. Temp. Correction (Al) Aluminum Wire Amp Capacity (3 wire) Current Adjustment for more than 3 Wires in a Cable Copper Wire Resistance Standard Copper Wire Specs Wire Classes & Insulation Standard Wire Color Codes Wire Size vs. Voltage Drop Conduit Size vs. Wire Size Box Size vs. Number of Wires Average Electric Motor Specs NEMA Electric Motor Frames NEMA Electric Enclosure Types DC Motor Wiring Specs 3 Phase Electric Motor Specs HP vs. Torque vs. RPM for Motors Electronics Resistor Color Codes Resistor Standard Values Capacitor Color Codes Capacitor Standard Values Pilot Lamp Specs Fuses- Small Tube Type Battery Characteristics Batteries - Standard Sizes RF Coil Winding Data Wire Size vs. Number of Turns/Inch Decibels vs. Voltage & Power Ratios Formulas for Electricity General Informa