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Types of 3NH Grayscale Charts Products

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FAQs About  Grayscale Charts

Gloss level is not given out in percentage but in gloss units (GU). In practice, however, 100 GU is considered 100 percent reflective. To contrast visually, the 20-40 GU is a low-gloss surface, and 85 or more is almost 100 percent mirror-like reflection.


Gloss is the general reflectivity of a surface, which encompasses a variety of degrees. One particular type of finish is high gloss, which has the maximum shine and reflectance. It increases the richness but emphasizes flaws as compared to satin or matte.


  • The core function of a portable multi-parameter colorimeter is to measure various color parameters, including color difference and chromaticity, and it is mainly used in scenarios requiring precise color management.

  • 3nh portable colorimeters are designed specifically for the above needs, combining portability and high-precision color measurement, making them especially suitable for on-site rapid testing.

  • Our portable colorimeter products effectively improve color quality control efficiency and help users optimize workflows.

  • For more product information or to apply for a trial, you can contact our color engineers by email at service@3nh.com.


    3nh – High-Quality Colorimeter Manufacturer | Delivering Accurate Color Measurement Data

    With over 20 years of experience in color management, 3nh helps optimize your enterprise’s color management workflow, 3nh’s color measurement instruments include colorimeters, benchtop spectrophotometers, color testers, and color matching software. Contact our color experts today!


Daylight, store light, home light, and UV fluorescence light sources are included in Pantone light boxes as D65, TL84, CWF, A, and UV. 


 The five common gloss levels are:

1. Flat/Matte (0–10 GU)

2. Eggshell (10–25 GU)

3. Satin (26–40 GU)

4. Semi-gloss (41–70 GU)

High Gloss (71–100+ GU)
These levels vary slightly depending on industry and standards used.


Color evaluation will change based on how a sample is viewed.  A 45° viewing angle to the source is recommended to reduce shading and achieve consistent comparison.

Further Grayscale Charts Applications and Solutions

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