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Whiteness and chromaticity tester measures the whiteness, yellowness, color and color difference, reflectance value, stimulus value of the sample. It measures the paper opacity, transparency, light scattering coefficient, light absorption coefficient and ink absorption value. The compact, advanced circuit design ensures the accuracy and stability of measurement data. This color tester measures the ISO brightness (blue whiteness R457) & Z whiteness (Rz) of fluorescent whitening sample due to the emission of the fluorescent material.
$4,301.00 $ 3584
Specifications
| 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 |
| Repeatability | Rx, Ry and Rz s ≤ 0.1 chromaticity co-ordinate s ≤ 0.0010, R457 s ≤ 0.10 |
| System | D/0 lighting geometrical viewing conditions, diffuser diameter (d) 150 mm, testing hole diameter 30 mm |
| Light measurement | CIE whiteness (Ganz whiteness W10, Color cast value TW10), WH hunter whiteness, YI Yellowness, ISO brightness R457 |
| Storage | 9 reference samples |
| Dimension (L*W*H) | 360 × 264 × 400 mm |
| Net weight | 23 kg |
| Power supply | 220 V ± 10 %, 50 Hz |
Features
Applications
Whiteness & color tester is used to measure color values, brightness, whiteness in papermaking, printing, ceramics, chemicals, textile printing and dyeing, building materials, food, salt and other industries.
Lab Expo offers Paper Testing Instruments designed for a wide range of sample sizes to test packaging materials with high precision. Our paper testing instruments are designed with a compact and portable structure, easy to transport, and ideal for testing in various environments. They offer a built-in printer that ensures efficient printing of test results for seamless documentation. Their advanced signal-transmitting pressure system offers precise control, ensuring reliable and accurate performance. Our instruments feature a user-friendly LCD to provide real-time monitoring of stiffness and burst strength values.