National Physical Laboratory

Haze Measurements

Haze measurements map
Image courtesy of iStockphoto

Measurements of haze can be made for any flat or pseudo-flat transmitting material.

Measurements are performed on the NPL Reference Hazemeter which complies with BS 2782: Methods of Testing Plastics, Part 5: Method 521A: Determination of haze of film and sheet (1992). The measurements can be made with sources approximating either CIE Illuminant A or CIE Illuminant C, and use a detector providing a close approximation to the CIE photopic spectral luminous efficiency function, V(λ).

Clients will receive a calibration certificate (available as both electronic and hard copy).


Customer Service tel: +44 20 8943 6151

Last Updated: 22 May 2014
Created: 6 Aug 2009


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