ZHIBANG ZB-B Whiteness Instrument

1. Overview

ZB-B Whiteness Meter is a special instrument for measuring the whiteness of objects. It is widely used in the whiteness measurement of paper and cardboard, textile printing and dyeing, paint and coating, chemical building materials, plastic products, cement, calcium carbonate powder, ceramics, enamel, china clay, talcum powder, starch, flour, salt, detergent, cosmetics and other objects.

The specific functions of the instrument are as follows:

1. Measure ISO brightness (i.e., R457 whiteness), and the fluorescence whiteness produced by the emission of fluorescent substances can also be measured for the fluorescent whitening sample. 

2. Measure the brightness stimulation value. 

3. Determine opacity. 

4. Determine transparency. 

5. Determine the light scattering coefficient and absorption coefficient.

6. Measure the ink absorption value.

Second, the implementation of standards

ISO 2469 Determination of diffuse reflectance factor --- paper, cardboard and pulp

ISO 2470 Paper and cardboard – Whiteness determination (diffuse/perpendicular)

ISO 2471 Determination of --- Opacity (Paper Backing) of Paper and Cardboard --- Diffuse Reflectance

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

GB/T 7973 Paper, cardboard and pulp – Determination of diffuse reflectance factor (diffusion/perpendicular method)

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

GB/T 2679 "Determination of paper transparency"

GB/T 1543 "Paper and cardboard – Determination of opacity (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 the Absorption of Paper and Cardboard Inks"

GB/T 2913 Test Methods for Whiteness of Plastics

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

GB/T 5950 "Methods for measuring the whiteness of building materials and non-metallic mineral products"

GB/T 8424.2 "Colorfastness test of textiles -- Instrumental evaluation method for relative whiteness"

GB/T 9338 "Fluorescent brightener -- Determination of relative whiteness -- Instrument 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 fibers

GB/T 22427.6

QB/T 1503

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

Third, the main performance parameters

1. The appearance of the instrument is novel, the structure is compact, and the professional circuit design effectively ensures the accuracy and stability of the measurement data.

2. The instrument simulates D65 illuminator lighting.

3. The instrument adopts D/O illumination to observe geometric conditions. The diffuser ball has a diameter of 150 mm and a test hole diameter of 30 mm (19 mm) and is equipped with a light absorber to eliminate the influence of specular reflection of light from the specimen.

4. Using large-screen high-pixel LCD module, Chinese display and prompt operation steps to display measurement and statistical results, friendly man-machine interface makes the instrument operation simple and convenient

5. The instrument has added a printer and adopted imported thermal printing core, which does not need to use ink and ribbon, no noise during work, and fast printing speed

6. This instrument is equipped with standard RS232 interface, which can communicate with microcomputer software

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

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.