Engineering topics

Whidby, J. F.

Publications and source records attributed to Whidby, J. F..

2 records

NASA NTRS1973

Calibration of dissolved oxygen standard for analysis with methylene blue

Accurate standard solutions of oxygen can be prepared with this apparatus. Sample may be used as a dissolved oxygen standard with methylene blue or with other techniques such as gas chromatography.

Whidby, J. F.↗

NASA NTRS1973

Oxygen sensitive paper

Paper is impregnated with mixture of methylene blue and ethylenediaminetetraacetic acid. Methylene blue is photo-reduced to leuco-form. Paper is kept isolated from oxygen until ready for use. Paper can be reused by photo-reduction after oxygen exposure.

Whidby, J. F.↗