Reference number
ISO 13468-2:2021
International Standard
ISO 13468-2:2021
Plastics — Determination of the total luminous transmittance of transparent materials — Part 2: Double-beam instrument
Edition 2
2021-06
Preview
ISO 13468-2:2021
81839
No disponible en español
Publicado (Edición 2, 2021)
Esta publicación se revisó y confirmó por última vez en 2026. Por lo tanto, esta versión es la actual.

ISO 13468-2:2021

ISO 13468-2:2021
81839
Idioma
Formato
CHF 67

Resumen

This document covers the determination of the total luminous transmittance, in the visible region of the spectrum, of planar transparent plastics and substantially colourless plastics, using a double-beam scanning spectrophotometer. This document cannot be used for plastics which contain fluorescent materials.

This document is applicable to transparent moulding materials, films and sheets not exceeding 10 mm in thickness.

NOTE 1   Total luminous transmittance can also be determined by a single-beam instrument as in ISO 13468-1.

NOTE 2   Substantially colourless plastics include those which are faintly tinted.

NOTE 3   Specimens more than 10 mm thick can be measured provided the instrument can accommodate them, but the results cannot be comparable with those obtained using specimens less than 10 mm thick.

Informaciones generales

  •  : Publicado
     : 2021-06
    : Norma Internacional confirmada [90.93]
  •  : 2
     : 7
  • ISO/TC 61/SC 5
    83.080.01 
  • RSS actualizaciones

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