A steel instrument vaguely resembling a clothing iron. The instrument has a handle covered in black plastic. The handle has a metal key hanging from it. A second key is in a lock at the back of the instrument. The front part of the instrument has a hinged door that opens into the interior of the instrument. There are three small glass windows on the instrument: two at one side, one at the top.
There are two metal labels on the instrument: one, at the side, for the maker, Casella Instruments of London; the second, on the front, for the distributor, Wilson Products Division ESB, Incorporated.
Accession Number: 2016.phlt.1.121
Isleworth Gravimetric Dust Sampler Type 113A
Primary Materials: Steel, Plastic
On one side of this instrument is a sticker that reads:
“Occupational Medicine & Hygiene
University of Toronto
The maker’s label lists an embossed serial number, “934”.
The distributor’s label lists an embossed serial number, “934”, an approval code “BM2F2117”, and a type code “113A”.
Dimensions (cm): Length = 23, Width = 11, Height = 18.
This instrument collects and measures environmental dust.
Very Good: The instrument has some rust on it.
Manufacturer: Casella Instruments. London, England.
Date of Manufacture: c. 1970s
This instrument was developed by the Mining Research Establishment of the National Coal Board at Isleworth, England (Jacobson 1972, 661).
Murray Jacobson, “Sampling and Evaluating Respirable Coal Mine Dust. Annals of the New York Academy of Sciences; 200, 1 (1972): 661-665.