Witheid Meter

Whiteness Meter 61-PPT101 is used to measure the whiteness of objects. Its compact, advanced circuit design ensures the accuracy and stability of measurement data. It measures ISO (R457) whiteness and fluorescence whitening of the materials. The whiteness meter is provided with light absorber to eliminate the influence of specular reflection of the sample.

Sample (size) length: Diameter ≥30 mm, Thickness ≤ 40 mm System: D/0 lighting geometrical viewing conditions, diffuser diameter (d) 150mm, testing hole diameter 30mm Light source: D65 as illuminating source Zero drift: ≤ 0.1 % Indication drift: ≤ 0.1 % Indication error: ≤ 0.5 % Repeatability error: ≤ 0.1 % Mirror reflection error: ≤ 0.1 % Dimension (L*W*H) : 360 x 264 x 400 mm Net weight: 20 kg Power supply: 220 V ± 10 %, 50 Hz

Whiteness meter is widely used to measure whiteness in paperboard, textile printing & dyeing, paint, plastic products, ceramic, enamel, detergent, cosmetics.

Sample (size) length :Diameter ≥30 mm, Thickness ≤ 40 mm Measurement mode :Diffuse reflection factor Rx, Ry, Rz, stimulus value Y10, X10, Z10, chromaticity coordinates x10, y10, z10; lightness L *, chroma a * b *, chroma C * ab, hue angle h * ab, dominant wavelength λd, excitement purity Pe, color difference ΔE * ab, lightness difference ΔL *, chroma difference ΔC * ab, hue difference ΔH * ab, Hunter system L, A, b Stability :≤ 0.1 within 30 min Accuracy :Chromaticity co-ordinate 0.0001