NEN EN 13826 : 2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
   4.1 Electrical safety
   4.2 Mechanical safety
5 Identification, marking and documents
   5.1 Marking of the scale or display
   5.2 Marking of PEFM or packaging
   5.3 Accompanying documents
   5.4 Technical description
6 PEFM measurement ranges
7 Performance requirements
   7.1 Error of measurement
   7.2 Linearity
   7.3 Resistance to flow
   7.4 Frequency response
8 Dismantling and reassembly
9 Effects of mechanical ageing
10 Effects of dropping hand-held PEFM
Annex A (normative) - Method of determining error, repeatability
                      and resistance to flow of peak expiratory
                      flow meter output
      A.1 - Principle
      A.2 - Apparatus
      A.3 - Procedure
      A.4 - Calculations
      A.5 - Test report
      A.6 - Pass/fail criteria
Annex B (normative) - Method of determining frequency response
      B.1 - Principle
      B.2 - Apparatus
      B.3 - Procedure
      B.4 - Calculations for frequency response
      B.5 - Test report
      B.6 - Pass/fail criteria
Annex C (normative) - Test methods for determining the effects of
                      dismantling, ageing and dropping
      C.1 - Principle
      C.2 - Apparatus
      C.3 - Procedures
      C.4 - Calculation of effects
      C.5 - Test report
Annex D (informative) - Rationale for tests and examples of test
                        apparatus
      D.1 - Introduction
      D.2 - General
      D.3 - Apparatus
Annex ZA (informative) - Clauses of this European standard
                         addressing essential requirements or other
                         provisions of EU directives
Bibliography

Provides requirements for peak expiratory flow meters (PEFM) intended for the assessment of pulmonary function in spontaneously breathing humans.