ISO 105-B02 testing: the specifications that decide the fit

The Light Fastness Testers TNG1032 and TNG1036 are designed to meet the requirements of ISO 105-B02, ensuring accurate and repeatable results for colour fastness testing under simulated light exposure conditions.

Understanding Specification Tables for ISO 105-B02 Compliance

When interpreting a specification table for ISO 105-B02 compliance, it is essential to focus on the key parameters that define the test environment. For instance, the Irradiance value of the TNG1032 Light Fastness Tester is specified as 0.80 ~ 1.50W/m² @ 420nm, which directly corresponds to the light intensity required to simulate natural sunlight. This range allows for precise control over the light exposure level, ensuring that the test conditions align with the standard's requirements for simulating solar radiation. The irradiance accuracy of ± 0.02W/m² @ 420nm further supports compliance by minimizing measurement variability, thus enhancing the reliability of the test results.

Sample Holders and Test Setup Configuration

The Sample holder specification for the TNG1036 Light Fastness Tester indicates that it can accommodate ISO / GB 16 Pcs for samples measuring 175 x 45mm and AATCC 8 Pcs for 175 x 75mm samples. This flexibility is crucial for ISO 105-B02 testing, as it allows the use of different sample sizes depending on the standard or the specific test method being applied. The ability to hold multiple samples in a single setup improves efficiency and ensures that all samples are exposed to the same light and environmental conditions, maintaining consistency across the test batch.

Environmental Control and Precision

Environmental control is a critical aspect of ISO 105-B02 testing, and the Temperature range of both TNG1032 and TNG1036 is specified as 25 ~ 50 ℃ with a Resolution of 0.1 ℃. This range allows for the simulation of various environmental conditions that may affect the colour fastness of materials. The high resolution ensures that temperature fluctuations are minimized, which is essential for maintaining the accuracy of the test results. Additionally, the use of a 2500W air-cooled long-arc xenon lamp as the light source provides a consistent and stable light output, further supporting the precision required by the standard.

Conclusion

By adhering to the specifications provided, the TNG1032 and TNG1036 Light Fastness Testers ensure that the testing process meets the rigorous requirements of ISO 105-B02. The combination of precise irradiance control, flexible sample holders, and accurate environmental monitoring enables reliable and repeatable results, making these instruments essential for colour fastness testing in laboratory settings.

Instrument models referenced

• TNG1032 Light Fastness Tester (Colour Fastness Testing). Published specifications include Working modes To simulate and reinforce the impact of the nature of the measured object, providing light and dark, temperature and humidity, raining and other quantitative indicators.; Irradiance 0.80 ~ 1.50W/m2 @ 420nm (340nm, 300~400nm, 300~800nm is offered on request), Digital set, automatic closed-loop compensation; Irradiance accuracy ± 0.02W/m2 @ 420nm.
• TNG1036 Light Fastness Tester (Colour Fastness Testing). Published specifications include Working modes To simulate and reinforce the impact of the nature of the measured object, providing light and dark, temperature and humidity, raining and other quantitative indicators.; Irradiance 0.80 ~ 1.50W/m2 @ 420nm (340nm, 300~400nm, 300~800nm is offered on request), Digital set, automatic closed-loop compensation; Irradiance accuracy ± 0.02W/m2 @ 420nm.