DIN 51769-9:1981-10
Отменен
Testing of petroleum products; determination of the lead content (total lead) of liquid mineral oil hydrocarbons with a mass fraction of lead of 50 to 1000 µg/kg; iodine monochlorid disentegratien; extraction with dithizone and photometric determination of the lead dithizone complex
— 5 стр.
