Chapter S: S Synchronous Speed

S

S

sulfur (element)

saturated air

point where the dry and wet bulb temperatures of an air/water-vapor mixture are equal; 100 percent humidity.

Saybolt Second Furol (SSF)

American unit for kinematic viscosity of very heavy liquids. A larger orifice is used for measurement and the time of efflux is a tenth of that used in the Saybolt Second Universal system.

Saybolt Second Furol =

• 0.463 cSt

• 0.1 Saybolt Second Universal

Saybolt Second Universal (SSU); Saybolt Universal Second (SUS)

American unit for kinematic viscosity unit of lighter liquids, by measuring the time required for 60 cm ³ of the liquid to flow through a standard orifice at a specified temperature.

Saybolt Second Universal =

• 4.63 cSt

• 10 Saybolt Second Furol

Saybolt Universal Second (SSU)

See also Saybolt Second Universal (SSU); Saybolt Universal Second (SUS).

Sb

antimony (element)

Sc

scandium (element)

score

20 items

screen, screen openings

scruple (apoth) =

0.3333 dr (apoth/troy)	0.002857 lb (avdp)
0.73143 dr (avdp)	1296 mg
1.296 g	0.0417 oz (apoth/troy)
20 gr	0.0457 oz (avdp)
0.001296 kg	0.8333 pwt
0.003472 lb (apoth/troy)

See also mesh.

Se

selenium (element)

secant

second =

1.1574 E ? 05 d	0.01667 min
2.778 E ? 04 h

second (angular) =

2.778 E ? 04 degrees (angular)	4.848 E ? 06 rad
0.01667 min (angular)

See also trigonometry table of function value (angle in degrees).

section

measure of area, equal to 1 mi ²