Reflectance test paper

Reflectance test paper evaluates the whiteness or color of paper by measuring its surface's ability to reflect a standard light source. The principle is based on calculating the ratio of the intensity of reflected light to that of incident light after illumination. It is used for quality control in the papermaking and printing industries to ensure color consistency of paper.
Selection
When selecting, consider the alignment with testing standards and confirm the instrument's compatibility. Pay attention to whether the measurement range covers the sample's reflectivity interval and ensure the material stability meets environmental requirements. Compare with industry-standard specifications and verify calibration traceability. Evaluate the ease of operation and the consistency of data reproducibility.

Instruments

Made of non-fluorescent paper, does not contain Fluorescent Whitening Agent, the black part reflectance is less than 1, the white part reflectance is 80 +/- 2, the surface is smooth and anti-Curl, and the test area is 0.1 square Meters.

$ 91.00

Made of high-quality non-fluorescent paper, does not contain Fluorescent Whitening Agent, black reflectance < 1, white reflectance 80 +/- 2, Laminating design enhances anti-Curl ability, test area of 0.1 square Meters.

$ 89.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, no Laminating design to enhance paint wettability, avoid checking or cissing, suitable for specific spreading rate brushing tests.

$ 88.00

Using non-fluorescent paper substrate, white reflectance 80 +/- 2, black reflectance < 1, Laminating design enhances Curl resistance, 0.1 square Meter standard area is suitable for spreading rate testing.

$ 91.00

White part reflectance 80 +/- 2, black part reflectance less than 1, surface smoothing anti-Curl, suitable for 0.1 square Meter spreading rate test, wettability is good for checking.

$ 89.00

With 45/0 reflectance and hiding power test function, repeability 0.2%, repRoducibility 0.5%, automatic calibration and correction of black and white board values, support USB data transmission and statistical mode.

$ 646.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, Laminating design enhanced anti-Curl ability, suitable for spreading rate testing, area of 0.1 square Meters.

$ 89.00

Measurement accuracy of +/- 1, resolution 0.1, support USB and Bluetooth data output, using Photocell, photovoltaic cell technology for reflectance detection, suitable for a variety of material surface analysis.

$ 517.00

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

Adopt 45/0 lighting mode, the measurement diaMeter is Φ 20mm, Repeatability Delta R0.1 or less, intelligently store the calibrated value, no need to calibrate frequently, compact and portable can directly measure reflectance value.

$ 490.00

Using 450nm Illuminant and 7 * 14mm elliptical measurement aperture, can accurately measure transparency and surface reflectance, support USB and Bluetooth data output, suitable for a variety of material detection.

$ 517.00

Black part reflectance is less than 1, white part reflectance is 80 +/- 2, Laminating design enhances anti-Curl ability, size 145 × 262mm is suitable for spreading rate testing.

$ 89.00

Checkerboard pattern design, black part reflectance below 1%, white part reflectance 80 +/- 2, Laminating structure enhanced anti-Curl ability, size 195 × 286mm, suitable for fast Spreader testing.

$ 91.00

White part reflectance 80 +/- 2, non-Laminating design to enhance paint wettability, test area of 0.1 square Meters, Curl and checking resistance, suitable for brushing applications.

$ 88.00

Adopt 45/0 geometrical optics structure, repeability accuracy Delta E * ab within 0.04, equipped with large integrating sphere and 3.5 inch Touchscreen, support Light spectrum reflectance Linear dispersion display and color scheme function.

$ 2623.00