Barktrometer for measuring the density of tanning liquor

Made:: 1876 in Bermondsey

maker:: Dring and Fage

Barktrometer in box, serial no 1115
Science Museum Group
© The Board of Trustees of the Science Museum

Barktrometer in box, serial no 1115. Hydrometer, used by tanners when tanning leather, for ascertaining the density of bark liquor, made by Dring & Fage, London, 1876.

Details

Category:: Experimental Chemistry

Object Number:: 1876-553

Materials:: gilt, box: mahogany, thermometer: mercury-in-glass, brass scale and slide-rule: ivory and boxwood

Measurements:: length 338 mm

type:: hydrometer and barktrometer

credit:: Dring and Fage

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Barktrometer for measuring the density of tanning liquor

Details

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