English to German Tech/Engineering Chemistry; Chem Sci/Eng insecticide

XX contains 400 g/l (38% w/w) of dimethoate in xylene and cyclohexanone

Ich weiß, was w/w bedeutet, nämlich:
an abbreviation for "by weight," used in chemistry and pharmacology to describe the concentration of a substance in a mixture or solution. Properly speaking, 2% w/w means that the mass of the substance is 2% of the total mass of the solution or mixture. The metric symbol g/g has the same meaning as w/w.)

allerdings weiß ich nicht, ob das im Dt. beibehalten wird, Gewichtsprozent oder sonst wie heißt. Kann jemand helfen? VDIV