Accreditations and certifications

Calibration and certification

Calibrations covered by ISO 21501-4

DFM’s particle laboratory was the first in Denmark to be accredited for calibration of particle counters which are covered by ISO 21501-4 and we calibrate with one of the best accuracies in the world.

We work constant to develop new services that are in demand by Danish companies but also to improve existing services.

We offer services within:

  • Calibration of clean room particle counters
  • Certification of reference particles
  • Custom measurements

If you have questions, are looking for guidance or can not find what you are looking for on our website then contact us.

 

Calibration of particle counters

Particle meter calibration is accredited according to ISO 21501-4. The reference aerosols used during the calibration are made of particles measured by the DFM during accreditation and are therefore traceable to the SI definition of the meter.

Accredited calibration of the following parameters:

  • Counting efficiency
  • Size setting error
  • Size resolution
  • False count rate
  • Sampling flow rate
  • Sampling time
  • Response time

Contact person

Jacob Larsen

Researcher, Nano
+45 25459050
jla@dfm.dk

Datasheet

Accredit the measuring ranges:

Particle concentration: 100 nm – 6000 nm

Size setting error: 200 nm – 6000 nm

Size resolution: 200 nm – 6000 nm

If you want calibration outside these areas, contact us for more information.

Accredited calibrations are performed in accordance with DANAK Accreditation Reg. Nr. 255 as well as our internally ISO 9001 certified quality system.

Size certified reference particles

DFM offers polystyrene latex (PSL) particle suspensions with traceability to recognized national and international standards. The particles can e.g. used as calibration particles for optical particle counters according to ISO 21501-4. The measurement of the particles is performed under accreditation and in accordance with DS / EN ISO / IEC 17025.

 

Accredited calibration in the area:

Particle size: 100 nm – 5000 nm

 

Measuring range outside accreditation:

Particle size: 5000 nm – 10000 nm

If you want calibration outside these areas, contact us for more information.

 

Accredited calibrations are performed in accordance with DANAK Accreditation Reg. Nr. 255 as well as our internally ISO 9001 certified quality system.

Datasheet

Contact person

Jørgen Garnæs

Senior Researcher, Nano
+45 2545 9018
jg@dfm.dk

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