RATA Relative Accuracy Test Audit or CAL2 (EN14181) - Environmental - Environmental Regulations and Compliance

An important step of CEMS testing is verifying of gas analyzers linearity : this step is well performed with a 30 steps gas divider. With just one test gas reference and a zero gas (diluting gas), the required 5 or 10 scaled concentrations may be easily produced "just in time". 30 steps dilution are available to allow using test gases with concentration up to 3 or 6 times the gas analyzer span.