icon

Call Now

86-755-26508999

icon

Email

tilo@3nh.com

icon

Time

8:00 AM - 5:30 PM (GMT+8)

Message

Consultation

About Us

3nh specializes in high-precision color measurement instruments, including colorimeters, spectrophotometers, and haze meters, serving industries like textiles, plastics, and coatings. With innovative R&D and global reach, we deliver reliable solutions for color management and quality control, trusted by customers in over 80 countries.

Test Charts

Test Charts Frequently Ask Questions

Lightbooths come in different dimensions. A typical tabletop model occupies 0.5-1 m². The bigger industrial variants take up 2-4 m².  If you have special requirements, we can customize the product according to your size


A haze meter measures the light.  It quantifies the measure of transmitted light across a material and the degree of scattered and diffused light.


To ensure a consistent color perception, observers should look at samples at a 45° light angle and 0° viewing angle to reduce glare.


For complete color evaluation, the CAC is commonly outfitted with D65 (daylight), TL84 (store light), F (home light), UV, and CWF (cool white fluorescent) lamps. 


A calorimeter is used to measure heat that is gained or lost during a chemical or physical reaction. A sample is taken in an insulated container, and a temperature change is measured. This assists in computing the alterations in energy by the equation Q = mcΔT, where Q is heat.


Gloss level is the extent of reflectance of light on a surface. It measures the shininess or dullness of a finish, from flat or matte to high gloss. It is important in aesthetic, functional, and quality control applications.


Our machine is packed by standard export wooden box, it won’t be damaged. We’ve delivered many testing machines abroad by sea or by air without damage.

Always a pre-production sample before mass production; Always final Inspection before shipment; 

This refers to assessing samples with a specific color and maintaining the same alloted time interval on all parameters to ensure neutrality of variables and reproducibility of lightness in the color. 


A CAC is a professional light booth designed to provide standardized lighting conditions for visual color assessment. It includes multiple light sources like D65, TL84, and UV.