Figure 2-23. Distillation Test Apparatus

TM 5-6640-212-14

countertop and it extends into cabinet N2 (fig. 1-2). The

b. Operation.

apparatus consists of items required for the immersion of

(1) Push the toggle switch to ON position.

four RVP bombs in a constant temperature bath. The

four RVP bombs and gages are stored in a rack to the

(2) Turn the temperature control knob clockwise to

right and above the bath. Included are heating unit and

increase temperature; counterclockwise to decrease

sensitive controls for automatic maintenance of required

temperature.

temperature. Components include a stainless steel bath,

set into the counter. Over the top are mounted a 1/30

(3) To operate the elevating control, push in and

horsepower motor, a thermometer, a 500-watt low lag

turn the knob clockwise to raise the platform;

immersion heater controlled by a micro set

counterclockwise to lower the platform. Total vertical

thermoregulator (stored in drawer El, fig. B-11ll), and

adjustment is three-fourths of an inch.

brackets

for

suspending

the

bombs.

The

theromoregulator is adjustable; the maximum current

(4) Consult ASTM Method D86 (TM 10-1166) for

carrying capacity is 15 milliampere.

A standpipe

detailed test procedures.

stoppered drain is threaded into the bottom of the bath.

In the housing below the bath working chamber are

2-25. Reid Vapor Pressure Bomb Bath.

mounted a relay, pilot light, and ON-OFF toggle switch.

a. Description. The Reid vapor pressure (RVP)

bomb bath (fig. 2-24), designed to comply with the

requirements specified in ASTM Method D323 (TM 10-

1166)

flush

mounted

the

right-hand

2-42