Pulp & Paper Testing

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>>> Color Meter

>> Color Meter
>> Model: PN-48A
>> Made In China
PDF Product Data Sheet  


Description :

  • Make measurement of color and color difference reflected by materials.

  • Make measurement of ISO brightness (Blue Whiteness R457) and degree of whiteness for Fluorescent whitener.

  • Make measurement of CIE whiteness (Ganz whiteness W10 and Color cast value Tw10) Make measurement of whiteness of building materials and non-metallic minerals.

  • Make measurement of Hunter system Lab and Hunter (Lab) whiteness reflectance factor.

  • Make measurement of yellowness.

  • Make measurement of opacity, transparency, light scattering coefficient and light absorbing coefficient.

  • Make measurement of ink absorption.


Paper, Board, Pulps, Chemical fiber, Textile, Plastic, Ceramic, Enamel, Salt, White cerement, Porcelain clay , washing powder and French chalk etc.


ISO2470: paper and board Blu-ray diffuse reflectance factor method (ISO brightness);

ISO2471: paper and cardboard is not transparent method;


  • Repeatability of test: δ(Y10)<0.1,δ(X10,Y10)<0.001。

  • Accuracy:  △Y10<1.0,△x10(Y10)<0.01。

  • Sample size: Diameter of the testing plane should be larger than 30mm while the thickness is less than 40mm.

  • Power supply: 170~250V, 50Hz, 0.3A。

  • Working condition: Temp.10~30℃, relative humidity within 85%

  • Size and weigh: 370×270×410 (mm),15kg.


  • Simulate D65 illuminator to illuminate. Adopt CIE 1964 supplementary standard colorimetric system and CIE 1976(L*a*b) colour space and colour difference formula.

  •  Adopt d/o illuminating--geometrical viewing conditions. Diameter of the globe of diffusion is 150mm and diameter of the testing hole is 25mm.

  • Light absorber is provide to eliminate the effect of mirror reflection.


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.