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Where each number comes from

In shortCotokim's catalog was built from 51 sources, read and saved with the date. Each page shows the sources it uses; here they all are, by type. When one official source disagrees with another, the page shows both and says which one we follow and why.

Health agencies and government (34)

Public health and safety agencies.

Laws and standards (1)

Laws, regulations and technical standards.

Manufacturers (14)

Size charts, pack counts and brand guides, used only for what only the manufacturer publishes.

Other sources (2)

Other guides and references.