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Gravimetric Dust Sampler (Casella Instruments)

DLSPH Occupational Health

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

Alternative Name:

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
(416) 978-2745″

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.

Associated Instruments:

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).

Additional Information and References:

Murray Jacobson, “Sampling and Evaluating Respirable Coal Mine Dust. Annals of the New York Academy of Sciences; 200, 1 (1972): 661-665.

Historical Notes: