ISO 6384:1981
ISO 6384:1981



On separate test portions the following determinations are carried out: measurement of the apparent pH in methanolic medium; determination of the water content; determination of the distribution of primary, secondary and tertiary amines contents; determination of oxyethylene groups content; determination of sulphated ash. Furthermore an aqueous or methanolic solution of a test portion is prepared and the free polyethylene glycols are isolated. On the separated polyethylene glycols the absence of nitrogen is verified and their relative molecular mass is determined.

General information 

  •  :  Published
     : 1981-04
  •  : 1
     : 7
  •  : ISO/TC 91 Surface active agents
  •  :
    71.100.40 Surface active agents

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