Paper Whiteness Measuring Instrument

The paper whiteness meter quantifies whiteness by simulating the human eye's sensitivity to blue-violet light, using a specific light source to illuminate the paper surface and detecting the intensity of reflected light. It is used to evaluate the appearance of paper and to control product quality and consistency in the papermaking and printing industries.
Selection
When selecting a paper whiteness measurement instrument, it is essential to consider measurement standards such as ISO or TAPPI to ensure compatibility with industry specifications. Pay attention to the instrument's accuracy and repeatability to accommodate different types of paper. Ease of operation and maintenance costs affect daily usage, so determine the functional scope based on actual testing requirements.

Terms

Standards

Instruments

R457 blue light whiteness formula, Measurement range 0~ 199.9%, resolution 0.1, Basis Weight measurement of whiteness of fluorescent whitening objects and paper Opacity, suitable for a variety of materials surface flat samples.

$ 332.00

It can measure the blue light diffuse reflection factor (R457) and fluorescence whiteness, use d/o illumination observation geometry conditions, test hole diaMeter 30mm, can analyze whether the material contains fluorescent whitening agent and measure a variety of Optical inspection coefficients.

$ 1348.00

Using blue light whiteness R457 standard, Measurement range 0~ 100, Repeatability ≤ 0.5, Basis Weight can reflect fluorescent whitening effect and accurate measurement paper Opacity.

$ 654.00

R457 blue light whiteness formula, Measurement range 0~ 100%, resolution 0.1, Repeatability ≤ 0.3, suitable for fluorescent whitening objects and paper Opacity measurement.

$ 490.00

Using R457 whiteness formula, blue light whiteness and fluorescence whiteness can be measured simultaneously, Repeatability ≤ 0.3, Operating temperature 5~ 35 ℃, optical path design is simple to ensure measurement accuracy and Repeatability.

$ 432.00

Repeatability of 0.2 for measurement of diffuse reflection factor using 457 nm blue wavelength can detect Fluorescent Whitening Agent and calculate fluorescence whiteness value, which is suitable for surface whiteness analysis of various materials.

$ 554.00

Using LED Illuminant, 45/0 illumination conditions, Measurement range 0~ 199.9, Repeatability ≤ 0.3, suitable for whiteness measurement of white objects or powders, easy to carry and on-site detection.

$ 393.00

Adopt LED Illuminant and 45/0 illumination conditions, measurement aperture Φ 15mm, resolution 0.1, Repeatability ≤ 0.3, AC-DC dual-use design is convenient for on-site rapid detection of whiteness value.

$ 233.00

Can measure ISO blue light whiteness and fluorescence whiteness, support powder whiteness measurement, Repeatability ≤ 0.02, built-in thermal printer, data can be cached and power-off protection, equipped with RS232 interface for easy communication.

$ 1051.00

Measurement time is only 1.5 seconds, Repeatability is less than R0.1, which can measure a variety of whiteness indicators and reflectance, and is suitable for the analysis of fluorescent whitening samples.

$ 800.00

Fully automatic one-click measurement of a variety of whiteness paraMeters, support chromaticity coordinates ≤ 0.001 High Accuracy, built-in thermal printer and RS232 interface, suitable for powder, paper and other samples.

$ 1818.00

Geometry conditions were observed using d/o illumination, and the diaMeter of the diffuse sphere was 150mm, which can measure the diffuse reflection factor of blue light and the fluorescence whiteness, and support Multi-ParaMeter analysis such as Opacity and light scattering coefficient.

$ 1300.00

Can measure ISO whiteness and fluorescence whiteness, Repeatability ≤ 0.02, support data cache and power-off protection, equipped with RS232 interface for easy communication, suitable for powder and flake samples.

$ 953.00

R457 blue light whiteness measurement, Indication Error +/- 2.5, repeatability error ≤ 0.3, equipped with 10V/30W halogen tungsten lamp light source to ensure stable reflection performance detection.

$ 687.00

R457 blue light whiteness formula and 45/0 illumination conditions, Measurement range 0~ 100%, Precision 0.1, Unique positioning structure and High Accuracy optical path system ensure measurement accuracy and Repeatability.

$ 322.00

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