Description: unique and unambiguous combination of letters and/or numbers that distinguishes a product from products of a different manufacturing process; Name: Supplier batch number
Description: unique combination of numbers and letters that distinguishes a product from other products of a different fabrication process; Name: batch number from supplier
Description: input variable to a comparing element in a controlling system, which sets the desired value of the controlled variable and is deducted from the command variable; Name: reference variable