N.Y.C. Admin. Code § 27-233: § 27-233 Abbreviations.

bhp: brake horsepower

mph: miles per hour

Btu: British thermal unit

oz.: ounce

C: centigrade

P.C.E.: pyrometric cone

cfm: cubic feet per minute

equivalent

cps: cycles per second

pcf: pounds per cubic foot

cu. ft.: cubic feet

plf: pounds per linear foot

db: decibel

psf: pounds per square foot

dia.: diameter

psi: pounds per square inch

F: Fahrenheit

psia: pounds per square inch

fpm: feet per minute

absolute

fps: feet per second

psig: pounds per square inch

fsp: fire standpipe

gauge

ft.: foot

rpm: revolutions per minute

gal.: gallon

sec: second

gpm: gallons per minute

swp: steam working pressure

gps: gallons per second

sq. ft: square foot

h.p.: horsepower

sq. in.: square inch

hr.: hour

sq. yd.: square yard

in.: inch

STC: sound transmission class

INR: impact noise rating

Tag: tagliabue

I.P.S.: iron pipe size

wwp: water working pressure

lb.: pound

Note: For abbreviation of name of referenced national organizations, see reference standard RS 2-1.