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DIN 53728-3

1985 Edition, January 1, 1985

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Testing of plastics; determination of the viscosity number of polyethylene terephthalate (PETP) or polybutylene terephthalate (PBTP) in dilute solution

Includes all amendments and changes through Change/Amendment , January 1985


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Product Details:

  • Revision: 1985 Edition, January 1, 1985
  • Published Date: January 1985
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: Deutsches Institut fur Normung E.V. (DIN)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

The procedure described in this standard is used to determine the viscosity number of PETP or PBTP in dilute solution. A mixture consisting of equal parts by mass of phenol and 1,2-dichlorobenzene is used as solvent. Additives, e.g. fillers, affect the results of the viscosity measurement and allowance shall be made for these when weighing the sample.

Note. Special agreements shall be made when additives are used which in themselves contribute to an increase in the viscosity of the solvent mixture.