Portable Whiteness Tester

Portable whiteness meters quantify whiteness by using a built-in light source to illuminate the sample and measuring the intensity of blue light reflected from the object's surface. They are used for whiteness detection of materials such as paper, plastics, and coatings, enabling quick on-site assessment of product appearance consistency.
Selection
When selecting, pay attention to the measurement aperture matching the sample size, and ensure that calibration plates are fully equipped. Check the instrument's repeatability error range, and ensure the battery life meets on-site usage requirements. The simplicity of the operation interface and the convenience of data export need to be verified in practice.

Terms

Standards

Instruments

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

Using 45/0 lighting conditions, Repeatability of 0.2, small size and light weight, support fluorescent whiteness measurement, one battery can be used continuously for more than 60 hours, moisture-proof design to adapt to harsh environments.

$ 385.00

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

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

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

Can measure ISO whiteness and fluorescence whiteness, equipped with diffuse ball diaMeter 150mm, test hole 19mm, support light scattering coefficient, absorption coefficient and other Optical inspection paraMeters, suitable for a variety of material surface whiteness analysis.

$ 1174.00

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

Using LED Illuminant and 45/0 illumination conditions, Measurement range 0~ 199.9, resolution 0.1, can detect Fluorescent Whitening Agent and measure increased whiteness, Repeatability ≤ 0.3.

$ 417.00

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

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

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

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

Articles

Paper Whiteness Tester Measures CIE Whiteness
This article explains how a paper whiteness meter measures CIE whiteness. Whiteness is a crucial optical indicator for evaluating paper quality. Traditional methods rely on subjective judgment, while modern instruments provide objective data by simulating standard lighting conditions.
Principle and Application of Whiteness Meter in Measuring Coating Whiteness
A whiteness meter quantifies the whiteness of paint samples by simulating human perception of white, measuring the diffuse reflectance of light—particularly in the blue wavelength range—and converting it into a numerical whiteness value. It employs standardized optical configurations and mathematical models, such as the Ganz formula, to assess the brightness and chromaticity of coatings.
Calibration and Use of Paper Whiteness Tester
This article introduces the working principle, calibration process, operational steps, and factors influencing the measurement results of a paper whiteness tester. The instrument evaluates whiteness by measuring the reflectance of blue light from paper, and calibration requires the use of a standard whiteboard in accordance with relevant standards.
Application of Whiteness Meter in the Evaluation of Paper Brightness and Visual Comfort
The whiteness meter quantifies the brightness and whiteness of paper by measuring its reflected light characteristics, following international standards such as ISO to ensure comparability of results. The brightness of paper affects visual comfort, and moderate whiteness can enhance the reading experience, but excessive whiteness may lead to fatigue.
Whiteness meter measures the whiteness of white pigments
This article introduces the standard method for measuring the whiteness of white pigments using a whiteness meter. Whiteness is an important optical indicator for evaluating the quality of white pigments, and a whiteness meter can provide objective measurements.