A dedicated instrument for the determination of the haze and the light transmittance of transparent and translucent sheet materials such as plastic sheet, film, glass and liquid products. Conforms to ASTM D1003 and BS2782. Traceable calibration to NPL.
Description
The Hazemeter measures the haze and transmittance of transparent and translucent materials, such as plastic sheets, film, glass, and liquid products. Its unique optical design allows the evaluation of large or small specimens in a wide variety of industries.
The Hazemeter features 0 degree illumination, diffuse viewing geometry for accurate measurement of haze, total luminous transmittance, and diffuse transmittance. The optical system eliminates the need for sphere-pivoting.
Measurements can be made quickly as samples can be hand-held or placed at the measurement port.
Features
- Easy to use: direct reading obtained quickly
- Versatile: measure in the laboratory or in the plant
- Immune to ambient light: sample compartment is light tight
- Optical geometry: 0 degrees illumination with diffuse viewing
- Capable of accepting samples up to 90mm thick
Operation
The sample is placed in holder at entrance to sphere. Calibration is automatically achieved when the microprocessor switch is activated. Similarly, the haze reading is displayed when the “press to read” button is depressed.
Evaluations
Below are examples of how the Hazemeter can by used for evaluation:
- haze and transmittance of clear or coloured plastic or glass
- plastic films for packaging
- laminated car windshields
- translucency of signs or rear-projection screens
- evaluation of the effect of detergents in cleaning glassware
- detection of flocculation in varnish or lacquer
- scratch resistance evaluation of plastic glazing materials or face shields (taber resistance)
- haze and transmittance of petroleum products
| Technical Specifications |
Sample size: Wide variety of sample size due to unique design; illumination
beam 90mm above base plate |
Sample port: Transmission: 22mm diameter |
Geometry: 0 degree/diffuse (0 degree illuminating, diffuse viewing); in conformance
with ASTM D1003 and BS2782 |
Illuminated area: Transmission: l5mm diameter |
| Spectral response: In conformance with CIE luminosity function illuminant A & C |
Traceability: National Standards NPL |
| Repeatability: 0.l unit |
Reproducability: 0.3 unit |
| Warm-up time : l minute |
Zero drift : None |
| Full Scale Drift: Less than 0.l unit in 5 minutes after warm-up |
Operating Temperature: 5 to 50 degrees centigrade |
Options: 232 Serial port; glass cell for haze and transmission of liquids,
taber abrasion adaptor |
Storage Temperature: -l0 to 65 degrees centigrade |
| Dimensions: 530mm x 240mm x 200mm ( W x D x H ) |
Power: 110-230VAC 50-60HZ |
| Weight: 12kg |
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