Finding AATCC 8 equipment through Colour Fastness

The Crockmeter (TNG1029) is the recommended instrument for testing in accordance with AATCC 8, as it meets the required specifications for colour fastness evaluation.
Instrument Category and Standard Compliance

AATCC 8 outlines the procedures for assessing the colour fastness of textiles to rubbing. This standard is crucial for industries such as fashion, home textiles, and automotive, where fabric durability and appearance are paramount. The instrument category for this test is "Colour Fastness Testing," which encompasses all devices designed to evaluate the resistance of dyed fabrics to rubbing. The Crockmeter (TNG1029) is a key device within this category, specifically designed to simulate the rubbing action that occurs during normal use.
Specifications and Their Relevance to AATCC 8
The Crockmeter (TNG1029) is an electronic device that ensures precise and repeatable results. Two key specifications directly support the requirements of AATCC 8. First, the rubbing head has a diameter of 16 mm, which matches the standard dimensions used in colour fastness testing. This size ensures that the rubbing action is consistent with the conditions described in the test method, allowing for accurate comparisons between different samples. Second, the vertical pressure applied by the instrument is 9N ±10%, which aligns with the specified force required to simulate real-world rubbing conditions. This pressure ensures that the test is neither too gentle nor too aggressive, maintaining the integrity of the test results.
Additional Features Supporting Standard Compliance

Beyond the two critical specifications, the Crockmeter (TNG1029) offers several features that enhance its suitability for AATCC 8 testing. The rubbing stroke of 104 mm ensures that the fabric is subjected to the correct amount of movement during the test, mimicking the natural rubbing motion encountered in daily use. The counter, which can measure up to 999,999 cycles and automatically stops, allows for precise tracking of the number of rubs applied, ensuring that each test is conducted to the exact number of cycles specified by the standard. The net weight of 11 kg is also important, as it ensures the instrument is stable and secure during testing, reducing the risk of movement that could affect the results.
Conclusion
The Crockmeter (TNG1029) is an essential tool for laboratories conducting AATCC 8 tests. Its specifications, including the 16 mm rubbing head and 9N ±10% vertical pressure, directly support the requirements of the standard, ensuring accurate and reliable results. By adhering to these specifications, the instrument enables laboratories to produce consistent data, which is vital for quality control and product development in the textile industry.
Instrument models referenced
- TNG1029 Crockmeter (Colour Fastness Testing). Published specifications include Type of Crockmeter Electronic Crockmeter; Rubbing head 16 mm; Vertical pressure 9N+/-10%.
Editorial note. This application note summarises the published scope of the standard and our documented model data. Configuration requirements vary between standard editions, and instruments support a method only with the appropriate fixtures and accessories. Please confirm the required configuration against the applicable edition of the standard before ordering; conformity of a given test result also depends on the specimen and the procedure followed.
Instruments referenced
Test standards referenced
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