Good User Reputation for Liquid Repellent Efficiency Tester - YYP103B Brightness &Color Meter – Yueyang

Brightness Color Meter is widely applied in papermaking, fabric, printing, plastic, ceramic and porcelain enamel, construction material, grain, salt making and other testing department that need to test whiteness yellowness, color and chromatism. 

Menstruate many times and give series of arithmetic measuring result; Digital display and the result can be printed out;

1.Test objects color ,diffuse reflectance factor RX、RY、RZ; stimulus value X10、Y10、Z10,  chromaticity coordinate X10、Y10，Lightness L*，Chromaticity a*、b*，Chroma C*ab，hue angle h*ab， dominant wavelengthλd;  ChromatismΔE*ab; lightness  difference  ΔL* ; Chroma difference ΔC*ab;  Hue difference H*ab; Hunter system L、a、b；

2. Test yellowness YI

3. Test opacity OP

4 Test light scatting coefficient S

5. Test light absorption coefficient. A

6 Test transparencies

7. Test Ink absorption value

8. Reference can be practicality or data; The meter can maximum store ten references’ information;

9. Take the average value; digital display and the test results can be printed out.

10. The testing data will be stored while powering off for a long time. 

1. Test the color and color difference of reflective objects.

2. Test ISO brightness (Blue-ray brightness R457), as well as the degree of fluorescent whitening of fluorescent whitening materials.

3. Test CIE whiteness (W10 Gantz brightness and color cast value TW10).

4. Test Non-metallic mineral products and construction materials whiteness.

5. Test yellowness YI

6. Test non-transparency, transparency, light scattering coefficient and light absorption.

7. Test ink absorption value.

1、GB7973: Pulp, paper and paperboard diffuse reflectance factor assay (d/o method).

2、GB7974: paper and paperboard whiteness assay (d/o method).

3、GB7975: paper and paperboard color measurement (d/o method).

4、ISO2470：paper and board Blue-ray diffuse reflectance factor method (ISO brightness);

5、GB3979: object color measurement

6、GB8904.2：Pulp whiteness assay

7、GB2913：plastics whiteness assay

8、GB1840：Industrial potato starch assay

9、GB13025.：Salt making industry general test method; whiteness assay. Textile industry standards: pulp of chemical fiber whiteness measurement method

10、GBT/5950 construction material and non-metallic mineral products whiteness assay

11、GB8425: Textile whiteness test method

12、GB 9338: fluorescent brightening agent whiteness test method

13、GB 9984.1: sodium tripolyphosphate whiteness determination

14、GB 13176.1: test method for brightness of washing powder

15、GB 4739: Chroma of ceramic pigment test method

16、Gb6689: Dye chromatism Instrumental determination.

17、GB 8424: test method for color and chromatism of textile

18、GB 11186.1:Coating color test method

19、GB 11942: Colorimetric methods for color building materials

20、GB 13531.2: color of cosmetics tristimulus values and delta E * chromatism measurement.

21、GB 1543: Paper opacity determination

22、ISO2471: paper and cardboard opacity determination

23、GB 10339: paper and pulp light scatting coefficient and light absorption coefficient determination

24、GB 12911: Paper and paperboard Ink absorption determination

25、GB 2409: Plastic yellow index. test method

1.Simulate D65 illumination lighting. Adopt CIE1964 supplement color system and CIE1976 (L * a * b *) color space color difference formula.

2.Adopt d / o observation geometry lighting conditions. Diffusion ball diameter of 150 mm, 25 mm diameter of test hole, with light absorbers to eliminate the sample mirror reflected light.

3.Repetitive: δ(Y10)＜0.1,δ(X10.Y10)＜0.001

4.Indication accuracy: △Y10＜1.0,△X10(Y10) ＜0.01.

5.Sample size: test plane no less than Φ30 mm, thickness no more than 40 mm.

6.Power: 170-250V, 50HZ, 0.3A.

7.Working situation: Temperature 10-30 ℃, relative humidity no more than 85%.

8.Sample size: 300×380×400mm

9.Weight: 15 kg. 

1.YYP103B brightness meter;

2.A power line; a black trap;

3.Two pieces of no fluorescent white standard plate;

4.One piece of fluorescent whitening standards board

5.Four light bulbs

6.Printing paper 4 volumes

7.A Power sample

8.Certification

9.Specification

10.Packing list

11.Warranty

12.Optional: constant pressure powder sampler.