BRL Humidity Slide Rule MK. 6A
Country of manufacture
: England,
Date of manufacture
: ____
Overall length
: 33.7 cm,
Width
: 5.0 cm,
Weight
: 121.6 gms.
Materials
: closed body form, all plastic
Cursor
: 3.8 X 5.9 X 1.2 cms; all plastic, slightly magnifying;
lines
= one on both front and back
Scales
: 18, mostly specialized
Front
: (4) Vapor Pressure & R.H. % [ (6) Temperature,
(5) Pressure
, (3) Dry Bulb and Dew Point, (3A) Temperature,
(2B) Adjusted Depression of Aspirated Wet Bulb, (2C) Adjusted Depression of Aspirated Ice Bulb
, (2) Depression of Wet Bulb in Screen, (2A) Depression of Ice Bulb in Screen ] (1) Wet Biulb and Dew Point, (1B) Ice Bulb & Frost Point, (1A) Dew Point
Back
: (7) Vapour Pressure, Frost Point, Dew Point [ Brief Instructions, C ] D, T
A
, T
B
Gauge Marks
:
[ ]
Condition
: C2 (Mint but no manual)
Came with
: Original gray/black plastic case labeled, "Blundell Harling Humidity Slide Rule Mk 6A - Celsius