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CHINA NBC-5635 whiteness Tester, digital whiteness Tester paper, Spinning & weaving product whiteness Tester

SE
The test plane is ≥ 30mm, the thickness is less than or equal to 40mm, the diameter of the diffusing ball is 150mm, and the diameter of the test hole is 19mm. A light absorber is provided to eliminate the influence of the specular reflection of the sample.
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SKU
NB044573
Power
AC220V±10%   50HZ
Zero drift
≤0.1%
Indication drift
≤0.1%
Error of indication
≤0.5%
Repeatability
≤0.1%
Mirror reflection error
≤0.1%
Specimen size
Test plane ≥ 0019 30mm, thickness ≤ 40mm
Dimensions
250*310*400mm
Net Weight
15kg
NBC-5635
Whiteness meter
The test plane is ≥ 30mm, the thickness is less than or equal to 40mm, the diameter of the diffusing ball is 150mm, and the diameter of the test hole is 19mm. A light absorber is provided to eliminate the influence of the specular reflection of the sample.
CHINA NBC-5635 whiteness Tester, digital whiteness Tester paper, Spinning & weaving product whiteness Tester Picture

Product Description

NBC-5635 Whiteness Meter is used to measure the blue light whiteness of the object surface, and the measurement results are displayed on the LCD. It is suitable for departments such as textiles, printing and dyeing, chemical fiber, plastics, china clay, talc powder, white cement, coatings, paints, ceramics, enamel, paper, pulp, etc. that need to measure the whiteness of products.

The 5635 meter is a special instrument for measuring the whiteness of objects. Widely used in whiteness measurement of paper and cardboard, textile printing and dyeing, paints and coatings, chemical building materials, plastic products, cement, calcium carbonate powder, ceramics, enamel, porcelain clay, talc, starch, flour, salt, detergents, cosmetics and other objects.

The main function

1. Determine ISO Brightness (ie R457 whiteness). For fluorescently whitened samples, you can also measure the fluorescent whitening degree produced by the emission of fluorescent substances. 

2. Determine the lightness stimulation value. 

3. Determine the opacity. 

4. Determine the transparency. 

5. Determine the light scattering coefficient and absorption coefficient.

6. Determine the ink absorption value.

7. Measure the reflected optical density.

8. Determination of lead core concentration

Implementation standards

ISO 2469 "Paper, board and pulp --- Determination of diffuse reflection factor"

ISO 2470 "Paper and paperboard - Determination of whiteness (diffuse/vertical method)

ISO 2471 "Paper and paperboard --- Determination of opacity (paper backing) --- Diffuse reflectance method"

ISO 9416 "Determination of light scattering and light absorption coefficient of paper (Kubelka-Munk)"

GB/T 7973 "Determination of diffuse reflection factor of paper, cardboard and pulp (diffuse/vertical method)"

GB/T 7974 "Determination of brightness (whiteness) of paper, paperboard and pulp (diffusion/vertical method)"

GB/T 2679 "Method for determination of paper transparency"

GB/T 1543 "Determination of opacity of paper and paperboard (paper backing) (diffuse reflection method)"

GB/T 10339 "Determination of light scattering and light absorption coefficients of paper, cardboard and pulp"

GB/T 12911 "Determination of ink absorbency of paper and paperboard"

GB/T 2913 "Test Method for Whiteness of Plastics"

GB/T 13025.2 "General test methods for salt production industry, determination of whiteness"

GB/T 5950 "Measurement method of whiteness of building materials and non-metallic mineral products"

GB/T 8424.2 "Instrumental evaluation method for relative whiteness in color fastness test of textiles"

GB/T 9338 "Instrumental Method for Determination of Relative Whiteness of Fluorescent Whitening Agents"

GB/T 9984.5 "Industrial sodium tripolyphosphate test method for determination of whiteness"

GB/T 13173.14 "Test Methods for Surfactant Detergents - Determination of Whiteness of Powdered Detergents"

GB/T 13835.7 "Test Method for Whiteness of Rabbit Hair Fiber"

GB/T 22427.6 "Starch Whiteness Determination"

QB/T 1503 "Method for determination of whiteness of daily ceramics"

FZ-T50013 "Test Method for Whiteness of Cellulose Chemical Fibers Blue Light Diffuse Reflection Factor Method"

Main performance parameters

1. The instrument has a novel appearance, compact structure, and professional circuit design to effectively ensure the accuracy and stability of measurement data.

2. The instrument simulates D65 illuminator lighting.

3. The instrument uses d/o lighting to observe geometric conditions. The diameter of the diffusion ball is 150mm and the diameter of the test hole is 19mm. It is equipped with a light absorber to eliminate the influence of the specular reflection light of the sample.

4. The instrument has power-off protection, and the calibration data will not be lost after a power outage.

FAQ
QI want to measure the whiteness of paper, which whiteness meter is suitable?
A The NBC-5635 whiteness meter specializes in the measurement of ISO whiteness (R457 whiteness), which conforms to the paper industry standard GB/T 7974. It can accurately determine the whiteness value of paper and Cardboard, and can also measure the opacity and light scattering coefficient. It is very suitable for paper and paper inspection.
QWe make ceramics, and we need to measure the whiteness meter. Do you have any recommendations?
A The NBC-5635 whiteness meter is very suitable for the ceramic industry. It implements the QB/T 1503 ceramic whiteness standard. The d/o observation structure can eliminate mirror reflection interference, measure the whiteness of the ceramic surface more accurately, and can also measure the fluorescence whitening effect. Quality control requirements for ceramic glaze and white billets.
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