Articles

When a product standard is revised, it is easy to assume that certificates issued against the previous edition immediately become invalid. For PPE, including respiratory protective equipment, that is not normally the case. The short

Choosing the correct headform for RPE testing is not always as straightforward as it first appears. Some standards clearly define the headform to use. Others refer to a separate test method. Some do not give

When you are developing Respiratory Protective Equipment (RPE), testing can feel like one single hurdle: pass the test, get the approval, launch the product. In reality, there are two very different types of testing that

When a PPE product has been CE certified, the certification applies to the approved product type: its design, materials, components, manufacturing process, intended use, technical documentation and test evidence. A product change does not automatically

In our RPE testing laboratory, accurate and reliable pressure measurement is a daily requirement. Whether we are carrying out breathing resistance testing, duration testing, or SCBA breathe-down work, we need instrumentation that gives us confidence

Airflow is one of the most important performance characteristics of powered filtering and supplied-air respiratory protective devices. It affects protection, comfort, breathing resistance, battery life, warning systems, filter performance and the way a product is

When a product is submitted for testing, it can be tempting to think that the “real” test begins when the equipment is switched on, the load is applied, the leakage is measured, or the performance