Digital Brightness Tester


Digital Brightness Tester

Specifications

Type ISO Type

Additional Information

Min. Order Quantity 01 Pcs

This instrument can be used to measure colour parameters of the surface of an object. It can also be used to determine the colour difference between two coloured samples using various international standard methods for objective comparisons, which will give quantitative colour difference perceptibility or acceptability in colour matching. The degree of whiteness of white objects may be determined in accordance with various whiteness standards, as can light scattering coefficient, absorption coefficient, degree of opacity and degree of yellowness, yellowing tendency of paper etc. Instead of using visual assessment this instrument can assess the degree of colour changing and staining in textile colour fastness.

Accessories :

  • Powder disc
  • Standard white powder (Barium sulphate)
  • plastic white plate (negligible fluorescent)
  • plastic white plate (fluorescent)
  • Black cylinder
  • Power cable
  • Pulsed xenon lamp
  • Fuse (NM51 1A/250V) Paper

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Colour Measurement Systems Available

L*, a*,b* CIE 1976 uniform colour space.
C*, h*, W10 Hue, hue angle, whiteness value for porcelain (GB/T1503-92)
L, a, b Hunter’s uniform colour space (condition of colour difference formula is D65/10°).
R457, YI, Whiteness, yellowness, change of yellowness .(defined by ISO committee TC6).
Rx, Ry, Rz Primary colours: red , green and blue
OP

opacity


For Calibration Use

Room temperature 23±5oC
Relative humidity < 85%
Power 220V± 5%, 50Hz or 110V± 5%, 60Hz


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