AATCC 22: which instrument fits and how to decide

The Spray Rating Tester (TNG1054) is the appropriate instrument for compliance with AATCC 22, as it provides the necessary specifications to accurately perform the required testing.

Instrument Selection Criteria for AATCC 22 Compliance

When selecting an instrument for testing in accordance with AATCC 22, it is essential to focus on the specifications that directly relate to the method's requirements. The Spray Rating Tester (TNG1054) is the only instrument listed in the verified facts for this standard, and its specifications must be evaluated to ensure compatibility. AATCC 22 involves assessing the resistance of fabrics to water penetration, and the Spray Rating Tester is designed to simulate this condition through controlled spraying. The specifications that are most relevant to this standard include the physical dimensions of the instrument and its compliance with related international standards.

Physical Dimensions and Their Significance

The Spray Rating Tester (TNG1054) has a length of 360 mm and a width of 280 mm. These dimensions are critical for ensuring that the test sample is properly positioned and exposed to the spray without any interference from the instrument itself. The specified size allows for accurate placement of the fabric sample within the testing chamber, ensuring that the spray is uniformly distributed across the surface. This uniformity is essential for obtaining reliable and repeatable results, as any variation in the spray distribution could affect the final rating. The dimensions also ensure that the instrument is compact enough for use in standard laboratory environments while still providing the necessary space for the test setup.

Compliance with Related Standards

The Spray Rating Tester (TNG1054) is compliant with both ISO 4920 and AATCC 22 GB/T4745. This dual compliance is significant because it ensures that the instrument meets the requirements of multiple international standards, which is often necessary for global product testing and certification. ISO 4920 provides guidelines for the determination of water resistance in textiles, while GB/T4745 is the Chinese standard that aligns with AATCC 22. By adhering to these standards, the Spray Rating Tester (TNG1054) ensures that test results are consistent and recognized across different regions and regulatory bodies. This compliance is a key factor in selecting the instrument for AATCC 22 testing, as it supports the validity and acceptance of the results.

Conclusion on Instrument Suitability

The Spray Rating Tester (TNG1054) is the only instrument that meets the specifications required for AATCC 22 testing. Its physical dimensions and compliance with related standards make it the most suitable choice for accurate and reliable results. When selecting an instrument for this standard, the focus should be on the dimensions and the adherence to international testing protocols, as these factors directly influence the validity of the test outcomes.

Instrument models referenced

• TNG1054 Spray Rating Tester (Air / Water / Vapour Permeability Testing). Published specifications include Length: 360 mm Width: 280 mm; ISO 4920 AATCC 22 GB/T4745.