Application:

It 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.

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

Standard:

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 "Paper - Determination of light scattering and light absorption coefficient (Kubelka-Munk)"

GB/T 7973 "Paper, cardboard and pulp - Determination of diffuse reflection factor (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 "Textiles - Color fastness test - Instrumental assessment method for relative whiteness"

GB/T 9338 "Fluorescent whitening agents - Determination of relative whiteness - Instrumental method"

GB/T 9984.5 "Industrial sodium tripolyphosphate test method - Determination of whiteness"

GB/T 13173.14 "Surfactants - Test methods for 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"

Application:

It 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.

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

Standard:

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 "Paper - Determination of light scattering and light absorption coefficient (Kubelka-Munk)"

GB/T 7973 "Paper, cardboard and pulp - Determination of diffuse reflection factor (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 "Textiles - Color fastness test - Instrumental assessment method for relative whiteness"

GB/T 9338 "Fluorescent whitening agents - Determination of relative whiteness - Instrumental method"

GB/T 9984.5 "Industrial sodium tripolyphosphate test method - Determination of whiteness"

GB/T 13173.14 "Surfactants - Test methods for 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 advanced 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.