2021-12-112021-12-112001http://hdl.handle.net/20.500.12091/3022Source: https://us.ohaus.com/en-US/en-USScales & BalancesANALYTICAL Plus Electronic Balances Models AP110, AP210, AP310, AP250D, AP110E, AP210E, AP310E and AP250E Instruction ManualArticle