Gester Instruments | Professional Textile Testing Equipment Manufacturers Since 1997
Paper Brightness Whiteness Opacity Tester GT-N04B
Paper Brightness Whiteness Opacity Tester GT-N04B
Application
This paper brightness tester is designed for measuring the whiteness, yellowness, hue, and color difference of materials across various industries, including paper manufacturing, printing, textile dyeing, ceramic and enamel production, building materials, chemicals, food processing, and salt production. Additionally, it evaluates paper properties such as opacity, transparency, light scattering coefficient, light absorption coefficient, and ink absorbency.
Standards
ISO 2469, ISO 2470, ISO 9416, ISO 12625-7, GB/T 7973, GB/T 7974, GB/T 1543, GB/T 10339,GB/T 12911, GB/T 5950,GB/T 8424.2, GB/T 2679.1-2020
Paper Brightness Tester Key Specification
Model | GT-N04B |
Light source | Simulated D65 |
Integrator diameter | 150mm. |
Sample size | Test Flat≥φ30mm, Thickness≤40mm |
Resolution | Chromaticity coordinates: 0.0001; the others: 0.01 |
Zero drift | ≤0.1 |
Indication drift | ≤0.1 |
Indication accuracy | Chromaticity coordinates≤0.01 R457≤0.5 Y≤1.0 |
Repeatability | R457≤0.1, Chromaticity coordinates≤0.001, Y≤0.1, △E≤0.2 |
Specular reflection | ≤0.2 |
Printer | Thermal printer |
Communication interface | RS232 (optional purchase) |
working environment | Temperature (20±10°C), humidity <85% |
Power supply | 1phase AC(100～240)V, (50/60)Hz, 50W |
Dimensions | 260×390×400mm (L×W×H) |
Weight | About 15kg |
Product details
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