Multifunctional Whiteness Meter
BGD 584 Multi-Function Whiteness Meter adopts liquid crystal display, integrates light, mechatronics, and micro-computer measurement and control technology, and has the function of data statistics processing, which can quickly and accurately measure the whiteness (brightness) of various objects. It can be widely used in the determination of whiteness of pigments, fillers or other products in coatings, as well as in papermaking, textile, printing and dyeing, plastics, ceramics, enamel, grain, building materials, and other industries. The instrument can measure not only ISO brightness (R457 whiteness), but also the fluorescent whiteness of fluorescent materials, and also the brightness stimulation value Y10, transparency, opacity, light scattering coefficient, and absorption coefficient of coating, paper, and other page materials.
BGD 584 conforms with CIE 15 and CIE S 005 "standard illuminants and color specifications", simulating D65 illuminant lighting, adopting 0°/d lighting observation geometry conditions, diffusion ball diameter is 150 mm, with two test hole diameter, Ø 30 mm and Ø 19 mm, equipped with light absorber, eliminating the influence of specular reflection light (SCE). The peak wavelength of spectral power distribution of R457 whiteness optical system is 457 nm, half height width is 44 nm.
Standards:
- GB/T 23774: Ignorance chemicals for industrial use - General method for the determination of whiteness.
- GB/T 5950: Method for measurement of whiteness of building materials and non-metal mineral products.
- ISO 105-J02: Textiles - Tests for color fastness - Part 12: Instrumental assessment of relative whiteness.
- ISO 2470-2: 2008: Paper, board, and cardboard - Measurement of diffuse reflectance factor - Part 2: Outdoor daylight conditions.
- GB/T 6141: 2008 - Paper and board - Determination of opacity (paper backing) - Diffuse reflectance method.
Features:
- Come with powder sampler for powder measurement.
- Come with thermal printer.
- Can measure continuously sample many times and calculate automatically the arithmetic mean value.
- With power-off protection, zero adjustment, alignment standard value, and other data, even if the power is lost for a long time, the data will not be lost.
Main Technical Parameters:
- Measurement Range: 0.0–120.0
- Zero Drift: ±0.1
- Indication Drift: ±0.1%
- Indication Error: ±0.2%
- Repeatability: ±0.1%
- Specular Reflectance Error: ±0.1%
- Sample Size: Test plate > 30 mm, thickness < 40 mm
- Power Supply: 220V ± 10%, 50Hz, 0.3A
- Working Condition: Temperature 0–40 °C, relative humidity < 85%
- Overall Dimension: (L x W x H) 365 mm × 260 mm × 425 mm
- Net Weight: About 11 kg
- Ordering Information: BGD 584: Multi-function Whiteness Meter
