Color Matching Cabinet TU300C/D

What is the main difference between the ISO 105 and AATCC TM 16 standards for testing light colorfastness?

The main differences between the ISO 105 and AATCC TM 16 standards for testing color fastness to light shown below in Table 2.

Compare content/Method	Method 1		Method 2	Method 3
	ISO 105 B02-1994		AATCC TM E16-1998	AATCC TM 16-2003
Standard system	Hardware features		Hardware features	Technical performance
Device description	Appendix A（Air-Cooled）、Appendix B（Water-cooled）		Appendix A（Air-cooled）、Appendix D（Water-cooled）	Appendix A
Operating procedures	420nm Water-cooled、300~400nm Air-cooled		420nm Water-cooled、300~400nm Air-cooled	No specific requirements
Lamp cooling method	Distinguish air-cooled, water-cooled		Distinguish air-cooled, water-cooled	No specific requirements
Sample rack structure	Requires rotation, diameter requirements		Requires rotation, diameter requirements	Plane and rotation can be
Light filler type	Specify device hardware features		Specify device hardware features	Specify the performance characteristics according to the purpose of the experiment
Spectral definition	No request		No request	Quantify the reference spectrum
Exposure options	Xenon arc light source		A、B、C、D…J（According to the type of light source and cooling method）	1、2、3、4…6（Only according to light source classification, do not distinguish between cooling methods）
Exposure conditions	ISO 105 B02 Chapter 6		AATCC TM 16 Section 9,5	AATCC TM 16 Section 9,5
Exposure method	European approach	American approach	American approach	American approach
Light irradiation energy control （W/m^2@420nm）	No request	No request	1.10±0.03	1.10±0.03
Blackboard temperature （℃）	Maximum	63±1	63±1	63±1
Chamber air temperature（℃）	No request	43±2	43±2	43±2
Chamber relative humidity（%）	Range requirements	30±5	30±5	30±5
Sample rack speed	Given based on specific equipment		Given based on specific equipment	No request
Lamp, filter replacement time	Given based on specific equipment		Given based on specific equipment	Permission to operate according to different equipment suppliers
Maintenance cycle	Given based on specific equipment		Given based on specific equipment	Permission to operate according to different equipment suppliers

 

How to use color assessment cabinet correctly?

What is colour matching cabinet？

Colour matching cabinet,also called color viewing light box or colour matching box,is a light booth for color matching.It can be easily felt in our daily lives that under different lighting conditions, the color of an object would appear to be different to us to certain extent. This is because different light sources own their own radiating energy, when the light hits on the object, different colors would be reflected and appeared.

Similar situation applies to the manufacturing industry. For example, when quality assessors have done their job to make sure that the color of the product is right, but complaints from the customers regarding the difference in color are still received. Sometimes it can even lead to the request for refund or return for the product and this would bring negative impacts to the reputation of that company.

To solve this problem effectively, the easiest approach is to do the color assessment test through color assessment cabinet and color matching cabinet under the same source of lighting with controllable requirement. For example, use the popular white light source- d65 light box for the test. Otherwise, the test would be meaningless and untrustworthy.

How to use the color assessment cabinet correctly?

1. Objective Angle

Below is the features that a color assessment cabinet should have. Note that the angle of observation affects the result of quality assessment directly and there are only two angles of observation that can be used. And, they are:

1. Zero degree light source, observe at the angle of 45 degree (0 °-45 °). i.e. The light source shoots perpendicularly on the specimen, or zero degree of incident angle, and the observer should observe at the angle of 45 degree.
2. Light source at 45 degree

Light source at 45 degree and observe at the angle of zero (0 °-45 °). For this setup, the use of 45°fixed angle table is involved so that the light source shoots on the specimen at the direction of 45 degree and the observer should observe at the angle of zero degree(perpendicular to the specimen).

2. Positioning of the specimen for the 45°light source test

Note that for whichever approach from above, the specimen should always be placed at the center of the color matching light box to reduce the effect of the outside light source on the result. Besides that, the most important thing when it comes to comparing the colors of two or more objects, avoid stacking the objects. Instead, place them side by side to do the comparison.

 

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Q: What is the size of the fuselage for different light quantities?

A: light box for 5 light sources: 710mm×420mm×570mm (L×W×H),

light box for 7 light sources: 710mm×620mm×625mm (L×W×H).