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Lab Expo 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.
$3,797.00 $ 3164
Specifications
| 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 × 264 × 400 mm |
| Net weight | 20 kg |
| Power supply | 220 V ± 10 %, 50 Hz |
Features
Applications
Function Implementation Quality control labs ≤ 0.5 % indication error ensures accurate whiteness assessment Clinical sample testing Diameter ≥30 mm allows analysis of standard specimen sizes Research laboratories D65 illuminating source supports standardized color evaluation Industrial production lines Net weight 20 kg enables stable benchtop operation Educational institutions Repeatability error ≤ 0.1 % provides consistent measurement results
Lab Expo Paper Testing Instruments are used for strength, thickness, smoothness, tearing, bursting, compression, whiteness, water absorption, and tensile analysis of paper, pulp, carton, and corrugated board materials. Systems support measuring ranges up to 6000 kPa bursting pressure, 50 kN compression force, 16000 mN tearing capacity, and 1000 N tensile testing with high-resolution digital measurement. Units integrate air permeability, stiffness, folding endurance, friction, chromaticity, and ply bond testing for paper manufacturing, packaging inspection, and quality control applications.