Plunger, glass

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Ingenium, 1996.0497.003
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OBJECT TYPE
evaporation pan
DATE
1930
ARTIFACT NUMBER
1996.0497.003
MANUFACTURER
P.N.F.I.
MODEL
HURST INTEGRATING ATMOMETER
LOCATION
Chalk River, Ontario, Canada

More Information


General Information

Serial #
N/A
Part Number
3
Total Parts
13
AKA
N/A
Patents
N/A
General Description
GLASS TUBE CONTAINING LEAD SHOT, COTTON PADDING, PAPER SCALE

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
N/A
Width
N/A
Height
28.5 cm
Thickness
N/A
Weight
N/A
Diameter
3.0 cm
Volume
N/A

Lexicon

Group
Forestry
Category
Fire fighting
Sub-Category
N/A

Manufacturer

AKA
PNFI
Country
Canada
State/Province
Ontario
City
Chalk River

Context

Country
Canada
State/Province
Ontario
Period
1930'S +
Canada
CANADIAN DESIGNED EVAPORATION MEASURING DEVICE MADE FOR CANADIAN FORESTRY SERVICE./ FROM COLLECTION OF FORESTRY & FIRE-FIGHTING EQUIPMENT USED BY & ACQUIRED FROM PNFI, CANADIAN GOV'T FORESTRY RESEARCH ESTABLISHMENT WHICH OPERATED FROM 1918-1995. PNFI STUDIED SPECIES GROWTH & FOREST MANAGEMENT, PARTICULARLY FIRE PREVENTION & SUPPRESSION.
Function
DEVICE USED TO MEASURE RATE AT WHICH LIQUID EVAPORATES INTO AIR. THIS TYPE CONSISTED OF ONE SMALL PAN CONTAINING SULPHURIC ACID & ONE CONTAINING GLYCERINE; MEASUREMENTS OF EVAPORATION WERE TAKEN FROM EACH BY MEANS OF CALIBRATED PLUNGER. THEY WERE USED BY FORESTRY SERVICE IN DETERMINING RISK OF FOREST FIRE.
Technical
DESIGNED BY DR. DONALD HURST OF NRC ATOMIC ENERGY PROJECT AT CHALK RIVER, ON. THESE WERE SIMPLE MEANS OF MEASURING FOREST FIRE DANGER; IT WAS THOUGHT THAT THEY WOULD INTEGRATE EFFECTS OF WIND, HUMIDITY & TEMPERATURE. RAINFALL & EVAPORATION MEASUREMENTS WERE MAIN COMPONENTS OF FIRE DANGER RATING.
Area Notes
Unknown

Details

Markings
BLACK SCALE MARKINGS ON PAPER SCALE FOR 0 TO 90
Missing
N/A
Finish
COLOURLESS TRANSPARENT GLASS, GREY SHOT, WHITE COTTON & PAPER (DISCOLOURED IN PLACES)
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

P.N.F.I., Plunger, glass, circa 1930, Artifact no. 1996.0497, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1996.0497.003/

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