What is ISO 26723 about?
ISO 26723 discusses plastics. ISO 26723 specifies the determination of total luminous transmittance and total luminous reflectance on clear, translucent, or opaque plastics. Specimen shapes include moulded plaque or discs, films, and sheets.
Note 1: Fluorescent plastics and chromatic colour plastics are not covered by ISO 26723.
Note 2: The scope of ISO 13468-1 shows that ISO 26723 covers planar transparent and substantially colorless plastics. The method in ISO 26723 provides the way to trap diffused light and covers to measure translucent and opaque plastics.
Who is ISO 26723 for?
ISO 26723 on the determination of total luminous transmittance and reflectance for plastic is relevant for:
- Plastic manufacturers
- Quality control personnel
Why should you use ISO 26723?
Luminous transmittance is a measure of the amount of light that passes through a transparent material. Luminous reflectance means the ratio of the amount of light that is reflected by a material to the amount of light that falls on the material.
When evaluating the total luminous transmittance of light diffusing material, the scattered light will go toward the edge of the specimen by its light-diffusing property. This method in ISO 26723 intends to collect scattered light from the edge of the specimen toward the inside of the integrating sphere. This method in ISO 26723 is suitable for not only light-diffusing materials but also clear materials.
The method in ISO 26723 can also evaluate the total luminous reflectance of clear, translucent, or opaque materials. ISO 26723 helps you to improve the quality control of plastic for maintaining the marketability of plastic.
