Pipettes with instrument standard reports, United Kingdom, 1940-1950
The paperwork accompanying the glass pipettes and measuring cylinders is from the National Physical Laboratory (NPL). The UK’s NPL is where standards of measurements are set and accurately tested. The pipettes and glassware were standardised by the NPL for a medical researcher at University College in 1943. Accurate equipment is important for scientific and medical research.
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A graduated tube (marked in ml) used to transport a definite volume of a gas or liquid in laboratory work.
Instrument for the analysis, synthesis, matching, and measurement of colour; it compares a given colour to a standard colour from a scale of colours, combinations of primary colours.