What are the differences between the different types of air particle counter calibrations?

Standard Size Calibration (includes as received data)

1. The following three parameters will be tested and stated as per ISO 21501-4:2018
   1. Size Setting
   2. Sampling Flow Rate
   3. False count
2. As received data will be stated for the following three parameters:
   1. Size Setting Error
   2. Sampling Flow Rate
   3. False count

ISO 21501-4 Calibration (includes as received data)

3. The following five parameters will be tested and stated as per ISO 21501-4:2018
   1. Size Setting
   2. Counting Efficiency
   3. Sampling Flow Rate
   4. Size Resolution
   5. False count
4. As received data will be stated for the following four parameters:
   1. Size Setting
   2. Sampling Flow Rate
   3. Size Resolution
   4. False count

(Reccomended) ISO 17025 Accredited Calibration (includes as received data) Click here to find out more What to expect from an ISO 17025 calibration 

5. The following five parameters will be tested and stated as per ISO/IEC 17025 and ISO 21501-4:2018 with as received data
   1. Size Setting
   2. Counting Efficiency
   3. Sampling Flow Rate
   4. Size Resolution
   5. False count

You can request a calibration on the RMA Website.