AATCC 8 FAQ: instruments, ranges and method scope

The Crockmeter (TNG1029) is a critical instrument for testing colour fastness under rubbing conditions, as it meets the requirements of AATCC 8.

How does the Crockmeter (TNG1029) support AATCC 8 testing?

AATCC 8 specifies the evaluation of colour fastness to rubbing, and the Crockmeter (TNG1029) is designed to replicate this process accurately. The instrument's electronic design ensures consistent and repeatable results, which is essential for compliance with AATCC 8. The rubbing head size of 16 mm is directly aligned with the standard's requirement for simulating human finger contact, ensuring that the test conditions are representative of real-world use.

What are the key specifications of the Crockmeter (TNG1029) and how do they align with AATCC 8?

The Crockmeter (TNG1029) features a vertical pressure of 9N+/-10%, which matches the standard's requirement for applying uniform pressure during the rubbing test. This specification ensures that the force applied to the fabric is consistent, reducing variability in test results. Additionally, the rubbing stroke of 104 mm corresponds to the standard's prescribed movement, ensuring that the test mimics the mechanical action of rubbing as defined by AATCC 8.

How does the Crockmeter (TNG1029) ensure accurate and repeatable testing?

The Crockmeter (TNG1029) includes a counter that can measure up to 1 ~ 999,999 times, automatically stopping when the desired number of rubs is reached. This feature ensures that the test is conducted with precise control over the number of rubbing cycles, which is crucial for meeting the reproducibility requirements of AATCC 8. The instrument's net weight of 11 kg also contributes to its stability during testing, minimizing any external factors that could affect the results.

What other features of the Crockmeter (TNG1029) support AATCC 8 testing?

The Crockmeter (TNG1029) is an electronic model, which ensures that the test process is automated and minimizes manual intervention. This automation reduces the risk of human error and enhances the accuracy of the results. The instrument's specifications are carefully aligned with AATCC 8 to ensure that the test conditions are standardized, making it a reliable tool for laboratories conducting colour fastness assessments.

Instrument models referenced

• TNG1029 Crockmeter (Colour Fastness Testing). Published specifications include Type of Crockmeter Electronic Crockmeter; Rubbing head 16 mm; Vertical pressure 9N+/-10%.