Dental Material Color Stability Tester Manufacturer | ISO 4049 Dental Composite Testing Equipment
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Standards
YY0270.1-2011:Dentistry - Base polymers - Part 1: Denture base polymers
YY/T0631-2008:Dental materials - Determination of colour stability
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
Feature
The dental material color stability tester has the following features:
Simulated Environmental Conditions: By simulating the light, temperature, and humidity conditions of the oral cavity, the sample undergoes accelerated aging treatment, and its color change is measured periodically to evaluate the material's color stability.
Ease of Operation: The instrument is user-friendly, easy to operate, and convenient to maintain.
High Sensitivity: Color change is measured using spectrophotometry, with repeatability accuracy reaching ΔE*ab ≤ 0.015. ensuring sensitive detection of color changes.
Environmental Stress Simulation: By setting specific periods (e.g., several hours to several days), changes in material color stability are observed.
Color Stability Evaluation Indicators: Auxiliary parameters include yellowness index (YI) and whiteness index (WI), used to quantify specific color shifts.
These features make the dental material color stability tester of significant application value in the research, development, production, and clinical application of dental materials.
Technical parameter
| Project | Details |
|---|---|
| Control System | PLC |
| Operation Interface | Color touch screen with Chinese-English switching |
| Light Source | Illuminance of 150.000 lx with an accuracy deviation not exceeding 10% |
| Color Temperature Range | 5000K - 10000K |
| Filter | Light transmittance greater than 90% |
| Test Chamber | Water temperature range: 0 - 99°C; Test temperature: 37°C; Adjustable water temperature with temperature display |
| Clamp | 304 stainless steel clamp with an outer diameter of 50MM and a thickness of 0.5MM |
| Polyurethane Film | Thickness ranging from 50μm to 0.5MM |
| Built-in Dial Indicator of the Equipment | Range: 0 - 25.5MM; Precision: 0.01MM |
| Standard | 15L constant-temperature tank with a temperature range of 0 - 99°C |
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