ISO 1389-3:1977
Phthalic anhydride for industrial use — Methods of test — Part 3: Measurement of colour stability
Reference number
ISO 1389-3:1977
Edición 1
1977-02
Retirada
ISO 1389-3:1977
5957
Retirada (Edición 1, 1977)

Resumen

The principle is based on the measurement of the colour of a test portion, by the method specified in ISO 2211, after a specified heat treatment. The test sample is maintained in a colorimetric tube in an electrically heated aluminium block, controlled at (250 3) °C for 90 min, in the molten state. The results are expressed in Hazen units. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.

Informaciones generales

  •  : Retirada
     : 1977-02
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 47
    71.080.50 
  • RSS actualizaciones

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)