Dental material color stability tester | Testing Equipment
The Dentistry Base Polymer Search Stability tester is an instrument used to evaluate the color stability of dental base polymers under different environmental conditions. A base polymer is a material used for dental restoration and correction, such as dentures, braces, dentures, etc.
Due to long-term use and the influence of the external environment, these base polymers may undergo color changes, affecting their beauty and durability. The color stability tester evaluates the color change of the base polymer under these conditions by simulating different environmental conditions, such as light, temperature, humidity, etc. Testers usually use standardized test methods and parameters to ensure the accuracy and comparability of test results.
During the test, a sample of the base polymer is placed in a tester and exposed to predetermined environmental conditions. The tester records the initial color of the sample and re-measures the color of the sample after a certain interval. The color stability of the base polymer can be assessed by comparing the initial color with the color of subsequent measurements.
The use of this tester can help dentists and technicians to select polymer materials with better color stability, thereby improving the effectiveness and durability of repairs and corrections. At the same time, manufacturers can use this tester to evaluate and improve the color stability performance of their products.
Enforce standards
YY0270.1-2011 and YY/T0631-2008.
ASTM C1442
Standard Practice for Conducting Tests on Sealants Using Artificial Weathering Apparatus
ASTM C1501
Standard Test Method for Color Stability of Building Construction Sealants as Determined by Laboratory Accelerated Weathering Procedures
ASTM D3424
Standard Practice for Evaluating the Relative Lightfastness and Weatherability of Printed Matter
ASTM D5071
Standard Practice for Exposure of Photodegradable Plastics in a Xenon Arc Apparatus
ASTM D6695
Standard Practice for Xenon-Arc Exposures of Paint and Related Coatings
ASTM G151
Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
ASTM G155
Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
COLIPA in-vitro UVA (2011)
Method for in vitro determination of UVA protection
EPA/ASTM E896
Standard Test Method for Conducting Aqueous Direct Photolysis Tests
GB/T 8427
Textiles - Tests for color fastness - Color fastness to artificial light: Xenon arc fading lamp test
GB/T 16422
Plastics -- Methods of exposure to laboratory light sources -Part 2: Xenon-arc lamps
ICH Q1B
Q1B Photostability Testing of New Drug Substances and Products
ICH Q5C
Stability testing of Biotechnological / Biological products
ISO 4049
Dentistry -- Polymer-based restorative materials
ISO 7491
Dental materials -- Determination of colour stability
ISO 4892-1
Plastics - Methods of exposure to laboratory light sources - Part 1: General guidance
ISO 4892-2
Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc sources
Technical parameter
Control system :PLC;
Operation interface: color touch screen, Chinese and English switch;
Light source: illuminance is 150 0001X----- accuracy is not biased to 10%;
Color temperature range :5000K-10000K;
Filter: transmittance greater than 90%;
Test box: Water temperature 0-99 degrees, test temperature 37 degrees,
water temperature can be adjusted with temperature display;
Clip :304 stainless steel clip outer diameter 50MM, thickness 0.5MM;
Polyurethane film: thickness of 50UM-- 0.5MM;
The device comes with a dial indicator :0-25.5MM, fine 0.01MM;
Standard :15L constant temperature tank, temperature 0-99 degrees.
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