CHNSpec Technology （Zhejiang）Co.,Ltd chnspec@colorspec.cn 86-571-85888707-813
CS-820N contains both D/8 and D/0 geometry to make it is suitable to measure both opaque, translucent and transparent materials. We get four plastic samples from customers. They need to measure the sample color value.We will introduce how to measure the color of plastic by the colour measurement spectrophotometer CS-820N.
Step 1. Prepare the Samples
Grey and Blue Plastic (Opaque)
Transparent and Yellow Plastic (Transparent)
Step 2. Measurement and Test Results
1. Do black and white calibration according to the instrument instruction (in reflectance mode).
White calibration
Black calibration
2. Set instrument setting as follows for color test of opaque plastic samples.
1).Illuminate: D65
2).Standard Observer: 10 degree
3).Test Mode: Reflectance
4). Test Parameter: L*a*b
5).Test Mode: SCI
3.Measure and Test Result
Test Method: One sample measure one point to get the test result.
Grey Plastic (Opaque) Color Measurement
Blue Plastic (Opaque) Color Measurement
Grey and Blue Plastic Color Test Result
| Name | L | a | b |
| Blue Plastic | 44.51 | -12.73 | -34.15 |
| Grey Plastic | 46.97 | -0.08 | -3.04 |
2. Set the instrument into transmittance mode.
1).Illuminate: C
2).Standard Observer: 2 degree
3). Test Parameter: L*a*b
3. Do black and air calibration according to the instrument instruction (in transmittance mode).
Black calibration
Air calibration
3.Measure and Test Result
Test Method: One sample measure one point to get the test result.
Transparent Plastic Color Measurement
Yellow Plastic Color Measurement
Transparent and Yellow Plastic Color Test Result
| Name | L | a | b |
| Transparent Plastic | 87.64 | -1.32 | 2.24 |
| Yellow Plastic | 93.56 | -22.04 | 83.07 |
CHNSpec Tech is specialized on manufacturing instrument for color, gloss and haze measurement. If any inquiry or questions, you are welcome to contact with us.
