Sodium hydroxide solution density table / baumé chart °Bé
Sodium hydroxide solution density table: concentration, percentage, density, Baumé °Bé - NIST Standard, the density of lye and baumé scale degrees [»]
Lots of articles about tiny industries such as creams, ointments, soap, grease hypochlorite and more. Most of theme are in Arabic but some are in English too