NEN EN 141 : 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
RESPIRATORY PROTECTIVE DEVICES - GAS FILTERS AND COMBINED FILTERS - REQUIREMENTS, TESTING, MARKING
31-07-2004
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Description
5 Classification
5.1 Introduction
5.2 Types of filters
5.2.1 Gas filters
5.2.2 Multi-type gas filters
5.2.3 Combined filters
5.2.4 Special filters
5.3 Classes of filters
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 Gas capacity
7.13 Combined filters
7.13.1 General
7.13.2 Filter penetration
7.14 Clogging (optional)
7.14.1 General
7.14.2 Filter penetration
7.14.3 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 Gas capacity
8.7.1 General
8.7.2 Filters Type A, B, E and K
8.7.3 Special filters
8.8 Filter penetration
9 Marking
9.1 General
9.2 Filters
9.3 Special markings
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 Directive
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.