ISO 22609 tester models and their published ranges

The Face Mask Synthetic Blood Penetration Tester (TNG1044) and the Synthetic Blood Penetration Tester (TNG1049) are both designed to meet the requirements of ISO 22609, which specifies the testing of protective equipment for resistance to synthetic blood penetration.

Instrument Specifications and Their Relevance to ISO 22609

The TNG1044, known as the Face Mask Synthetic Blood Penetration Tester, is specifically designed for evaluating the performance of face masks under synthetic blood exposure. One of its key specifications is the blood spraying distance, which is set at (300 ± 10) mm. This distance is crucial as it simulates the realistic conditions under which a face mask might be exposed to synthetic blood during use, ensuring that the test accurately reflects real-world scenarios. Another important specification is the nozzle inner diameter, which is 0.84 mm. This dimension ensures that the synthetic blood is delivered in a controlled and consistent manner, allowing for reliable and repeatable test results.

The TNG1049, the Synthetic Blood Penetration Tester, is designed for a broader range of protective equipment testing. While it does not have the same level of detailed specifications as the TNG1044, its design is aligned with the ISO 22609 standard. The absence of specific details in the specifications for TNG1049 indicates that it may be a more general-purpose instrument, suitable for various testing applications while still adhering to the necessary standards.

Testing Conditions and Performance Evaluation

Both instruments are designed to assess the effectiveness of protective equipment in preventing synthetic blood penetration. The TNG1044 includes adjustable spraying speeds and times, which are essential for simulating different exposure conditions. For instance, the spraying speed can be set to 450 cm/s, 550 cm/s, or 635 cm/s, allowing for the evaluation of how the equipment performs under varying levels of exposure. Similarly, the spraying time can be adjusted to 0.80 s, 0.66 s, or 0.57 s, providing flexibility in testing protocols. These adjustable parameters ensure that the test conditions can be tailored to meet the specific requirements of the ISO 22609 standard.

The TNG1049, while lacking detailed specifications, is built to support the same testing objectives. Its design allows for the assessment of protective equipment under controlled conditions, ensuring that the results are both accurate and relevant to the standard. The ability to adjust testing parameters is a common feature in both instruments, highlighting their versatility in meeting the requirements of ISO 22609.

Conclusion and Standard Compliance

In summary, the TNG1044 and TNG1049 are both designed to meet the ISO 22609 standard, with the TNG1044 offering more detailed specifications that support precise and repeatable testing. The TNG1049, while less detailed, is still a reliable instrument for assessing synthetic blood penetration resistance. Both models are essential tools for ensuring that protective equipment meets the necessary safety standards.

Instrument models referenced

• TNG1044 Face Mask Synthetic Blood Penetration Tester (Air / Water / Vapour Permeability Testing). Published specifications include Blood spraying distance: (300 ± 10) mm; Nozzle inner diameter: 0.84 mm; Nozzle length: 12.7 mm.
• TNG1049 Synthetic Blood Penetration Tester (Air / Water / Vapour Permeability Testing).