| http://www.w3.org/ns/prov#value | - AOS) having 12 - 18 carbon atoms and polyoxyethylene alkyl ether sulfate (AES) expressed by the general formula R'O(C.sub.2 H.sub.4 O).sub.n SO.sub.3 M' (wherein R' represents straight chain or branched chain alkyl group having 8 - 12 carbon atoms on the average, n is an integer in the range of 1 - 8, and M' represents an alkali metal or an alkaline earth metal), at a mixing ratio within the hatch
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