NEN EN 143 : 2000 C2 2006

1 Scope
2 Normative references
3 Definitions
4 Description
5 Classification
6 Designation
7 Requirements
    7.1 General
    7.2 Nominal values and tolerances
    7.3 Visual inspection
    7.4 Connection
    7.5 Mass
    7.6 Multiple filters
    7.7 Material
    7.8 Packaging
    7.9 Mechanical strength (M.S.)
    7.10 Temperature conditioning (T.C.)
    7.11 Breathing resistance
    7.12 Filter penetration
    7.13 Clogging
          7.13.1 General
          7.13.2 Filter penetration
          7.13.3 Breathing resistance
8 Testing
    8.1 General
    8.2 Visual inspection
    8.3 Mechanical strength (M.S.)
          8.3.1 Test equipment
          8.3.2 Test procedure
    8.4 Temperature conditioning (T.C.)
    8.5 Test flow conditions
          8.5.1 General
          8.5.2 Multiple filters
    8.6 Breathing resistance
    8.7 Filter penetration
          8.7.1 General
          8.7.2 Sodium chloride test
          8.7.3 Paraffin oil test
    8.8 Clogging
          8.8.1 General
          8.8.2 Test equipment
          8.8.3 Test conditions
          8.8.4 Test procedure
9 Marking
    9.1 General
    9.2 Encapsulated filters
    9.3 Unencapsulated filters
    9.4 Filter package
10 Information supplied by the manufacturer
Annex ZA (informative) Clauses of this European Standard
                         addressing essential requirements
                         or other provisions of EU Directives

Describes particle filters for use as components in unassisted respiratory protective devices with the exception of escape apparatus and filtering facepieces.