Graduated scale for ozone test papers, 1851-1900.
Part associated with scale of graduated tints for an ozonometerby Negretti & Zambra, London, England 1851-1900.
- Object Number:
- 1926-157 Pt1
- type:
- instrument component and ozonometer
Scale of graduated tints for an ozonometer by Negretti & Zambra, London, England 1851-1900.
Test papers exposed to the air in an ozonometer would change colour, and the extent of the change could be compared with this scale. Made by Negretti and Zambra.
Details
- Category:
- Meteorology
- Object Number:
- 1926-157
- Measurements:
-
overall: 15 x 4.9 cm
- type:
- ozonometer
- credit:
- Negretti & Zambra
Parts
Graduated scale for ozone test papers, 1851-1900.
Scale of graduated tints for an ozonometer by Negretti & Zambraby Negretti & Zambra, London, England 1851-1900.
- Materials:
- glass and paper (fibre product)
- Object Number:
- 1926-157 Pt2
- type:
- instrument component and ozonometer
