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ISO 27891 : 2015

M00022595

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ISO 27891 : 2015

AEROSOL PARTICLE NUMBER CONCENTRATION - CALIBRATION OF CONDENSATION PARTICLE COUNTERS

International Organization for Standardization

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Table of Contents

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Calibration using reference instruments - General
  principles
6 Calibration using an FCAE as reference instrument
7 Calibration using a CPC as reference instrument
8 Reporting of results
Annex A (informative) - CPC performance characteristics
Annex B (informative) - Effect of particle surface
        properties on the CPC detection efficiency
Annex C (informative) - Example calibration certificates
Annex D (normative) - Calculation of the CPC detection
        efficiency
Annex E (informative) - Traceability diagram
Annex F (informative) - Diluters
Annex G (normative) - Evaluation of the concentration
        bias correction factor between the inlets of the
        reference instrument and test CPC
Annex H (informative) - Extension of calibration range
        to lower concentrations
Annex I (informative) - Example of a detection efficiency
        measurement
Annex J (normative) - Volumetric flow rate calibration
Annex K (normative) - Testing the charge conditioner and
        the DEMC at maximum particle number concentration
Annex L (informative) - A recommended data recording
        method when using a reference FCAE
Annex M (informative) - Uncertainty of detection efficiency
        due to particle size uncertainty
Annex N (informative) - Application of calibration results
Bibliography

Abstract

Defines methods to determine the detection efficiency of condensation particle counters (CPC[s]) at particle number concentrations ranging between 1 cm[-3] and 10[5] cm[-3], together with the associated measurement uncertainty.

General Product Information

Document Type Standard
Status Current
Publisher International Organization for Standardization
Committee TC 24
Supersedes
  • ISO/DIS 27891 : 60.00 (2014)