Measurements

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By H. Boffin, et al., [faint scan]

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Enlarged view of Eastern and Southern seaboards arc on the following pages. 447 mls. a. Values are nominal design 3-second gust wind speeds in miles per hour at 33 feet abwe ground for Exposure C category. b. Linear interpolation between wind contours is permitted. c. Islands and coastal areas outside the last contour shall use the last wind speed contour of the coastal area. d. Mountainous terrain, gorges, ocean promontories and special wind r2ions shall be examined for unusual wind conditions.

TRAP SEAL. The trap seal is the maximum vertical depth of liquid that a trap will retain, measured between the crown weir and the top of the dip of the trap. VAPOR RETARDER. 7 . lo-" kglPa. s . m2)or less, when tested in accordance with the dessicant method using Procedure A of ASTM E 96. Vapor retarders limit the amount of moisture vapor that passes through a material or wall assembly. TRIM. Picture molds, chair rails, baseboards, handrails, door and window frames, and similar decorative or protective materials used in fixed applications.

QUICK-CLOSMG VALVE. A valve or faucet that closcs those installations, repairs, maintenance and alterations regulated by Chapters 25 through 32. automatically when released manually or controlled by mechanical means for fast-action closing. tem other than the occupied space being conditioned. 2006 INTERNATIONAL RESIDENTIAL CODE@ I DEFINITIONS R-VALUE, THERMAL RESISTANCE. The inverse of the time rate of heat flow through a building thermal envelope element from one of its bounding surfaces to the other for a unit temperature difference between the two surfaces, under steady state conditions, per unit area (h .

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Astrotomography by H. Boffin, et al., [faint scan]


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