ISO/DIS 17744
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ISO/DIS 17744
85976
No disponible en español

Estado : En desarrollo

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Formato Idioma
std 1 63 PDF
std 2 63 Papel
  • CHF63
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Resumen

ISO 17744:2004 describes procedures for determining the specific volume of plastics as a function of temperature and pressure in both the molten and solid states.

The standard specifies the use of a piston-equipped apparatus in which the test sample, held in a measurement cell, is pressurized by means of the piston. Measurements under conditions of constant pressure or constant temperature can be made. In the constant-pressure mode, the maximum heating and cooling rates permissible are restricted to 5 °C/min.

By using these procedures, it is possible to obtain:

  • pvT diagrams that represent the relationship which exists between pressure, specific volume and temperature for a given material;
  • compressibility and volumetric thermal-expansion coefficients;
  • information on first-order and glass transitions as a function of temperature and pressure.

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Informaciones generales

  •  : En desarrollo
    Puede contribuir al desarrollo del borrador de esta norma internacional. Para ello, contacte con su miembro nacional
    : Voto sobre el DIS iniciado: 12 semanas [40.20]
  •  : 2
     : 19
  • ISO/TC 61/SC 5
    83.080.01 
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