Shelfmark

Sal.1

Maker

Salford Electrical Instruments Ltd.

Subjects

Colorimetry; Photoelectric cells; Liquids--Optical properties; Chemistry; Analytic

Title

Photo-electric Colorimeter: an apparatus for the direct comparison of the opacity of liquids by means of photo-electric cells

Description

Under a photograph of the instrument, a short paragraph describes how the different features work and interact, together with the means by which the opacity of a liquid may be determined in terms of another known liquid.
A second paragraph defines the purpose of the instrument, and ends with a summary of its chief advantages:
Measurements are objective and do not therefore involve the
observer's visual judgement
Absorption and extinction values can be observed on direct
reading scales
Quantities of solution from 1.0cc to 100cc can be measured
High sensitivity is combined with robustness
Headed Diagrammatic, a diagram with numbered parts with a key follows, then two paragraphs headed:
Accumulator
Size & Weight

Earliest Date

Latest Date

Pages

2

Address

Peel Works, Silk Street, Salford 3, Lancs.

Other Makers

Cat no

[Leaflet No. 8 ?...]

Contents List

Hardback

Prices

Index

Illustrations

Yes

General Ref