Pulp & Paper Testing

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>>> Brightness Tester

>> Brightness Meter
>> Model: PN-48B
>> Made In China
PDF Product Data Sheet  


Description :

This brightness tester is mainly used to measure the whiteness of paper, paperboard, paper pulps, pulps of chemical fiber, cotton, chemical fiber, textile, plastic, grain, starch, salt, white cement, porcelain clay and talcum powder, etc. It can also be used to measure the opacity and other optical performance of thin pages.

  • Measure the diffuse blue reflectance factor (R457), which is also called blue brightness or ISO brightness.

  • Analyze whether the sample material contains fluorescence brightener, and measure the fluorescence brightness produced from fluorescence emission. I.e. brightness degree.

  • Measure the brightness stimulus value Y10 of sample, i.e. diffuse green reflectance factor Ry.

  • Measure the transparency, opacity, optical-absorption coefficient and light-scattering coefficient of samples.

  • Measure the ink absorbency of paper and board.

Major technical features:

  • Measure and digital display the whiteness, fluorescence whiteness and opacity (%), etc.

  • Zero drift: 0.1

  • Indication drift: 0.1

  • Indication error: 0.5

  • Repeatability error: 0.1

  • Error of specular reflection: 0.1

  • Sample size: testing surface is not less than 30mm, thickness of sample is not exceeding 40mm

  • Power: 220V, 50Hz, 0.3A

  • Working environment: temperature is 0-40, relative humidity is not exceeding 85%.

  • Size and gross weight: 340*260*420mm, 11Kg


ISO 2469, ISO 2470, ISO 2471, GB/T 7933, GB/T 7974, GB/T 8940.2, GB/T 1840, GB/T 2913, GB/T 13025.2, GB/T 1543, GB/T 10339, GB/T 5950.


Additional Products and Services

Hangzhou PNSHAR TESTER CO.,LTD. carries over 200 products, including many other test instruments, accessories and spare parts. If you don't locate what you want, please contact us with your requirements.