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ISO 15223-1 device labelling, laboratory safety marks and gas cylinder identification. What holds the group together is that every member replaces a sentence with a picture so that a device sold in forty countries needs no translation, and that several assert something narrower than they are read as asserting: STERILE R does not mean radioactive, autoclave tape proves exposure and not sterility, a cylinder's shoulder rather than its body carries the identity of the gas. The pin index system exists in this family as documented evidence that colour coding alone failed.
The letters STERILE with EO beside them in a rounded box.
The letters STERILE with R beside them in a rounded box.
A crossed-out STERILE box with a diagonal bar.
A figure 2 struck through by a diagonal bar in a circle.
An open book with a lowercase i, in blue.
A simplified factory building with a roofline.
The letters LOT in capitals.
Adhesive tape whose pale stripes turn dark after processing.
A coloured band on a cylinder's shoulder above a white or coloured body.