VPT 311: General and Systemic Veterinary Pharmacology (2+1)

COMMON SYSTEM - WEIGHTS AND MEASURES

Avoirdupois system

Weights

• 437.5 grains (gr) = 1 ounce (oz)
• 16 ounce (oz) = 1 pound (lb)
• 14 pounds(lbs) = 1 stone (st)
• 2 stones (sl) = 1 quarter (qr)
• 4 quarter (qr) = 1 hundred weight (cwt)
• 20 hundred weights = 1 ton (t)

Apothecaries system

Weights

• 20grains (gr) = 1 scruple ( Э )
• 3 scruples ( Э ) = 1 drachm ( -)
• 8 drachms (- ) = 1 ounce (- )
• 12 ounces ( -) = 1 pound (lb)

Measures (common for both systems)

• 60 minims (min,) = 1 fluid drachm (fl.dr )
• 8 fluid drachm (fl.dr J ) = 1 fluid ounce (fl.oz) ;
• 20 fluid ounces (fl. oz) = 1 pint (pt or o)
• 2 pints ( o) = 1 quart (qt)
• 4 quarts = 1 gallon (c)