A Launderometer, a machine which tests the fastness of dyes in chemicals used in commercial laundries. Pieces of the dyed fabric are place din the jars with the chemicals and some stainless steel balls. The whole battery of jars is then revolved for the duration of the test.
A Zeiss Pulfrich photometer with a sphere reflectometer attachment, is used for measuring reflection from any surface at various wave lengths of light. The machine is used in the laboratory to test detergency by measuring the brightness of scoured pieces. This equipment is located at the Technical Laboratory in Deepwater Point, New Jersey.