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BS ISO 17420-7:2021

BS ISO 17420-7:2021

$167.15

Respiratory protective devices. Performance requirements – Special application marine, mining, welding, and abrasive blasting. Filtering RPD and supplied breathable gas RPD

Published By Publication Date Number of Pages
BSI 2021 40
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This document specifies the requirements for supplied breathable gas respiratory protective device (RPD) and filtering RPD to be used for special application marine, mining, welding and abrasive blasting for use in the workplace to protect the wearer.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
11 4 Classification overview
4.1 General
4.2 Supplied breathable gas RPD
12 4.3 Filtering RPD
5 General requirements for RPD
6 Basic requirements for supplied breathable gas RPD or filtering RPD
7 Special application for supplied breathable gas RPD for marine, mining, welding, abrasive blasting and filtering RPD formining, welding, abrasive blasting
7.1 Special application – Requirement matrices
7.1.1 General
13 7.1.2 Supplied breathable gas RPD
17 7.1.3 Filtering RPD
20 7.2 Requirements for special application RPD for marine, mining, welding and abrasive blasting
7.2.1 Thermal requirements
21 7.2.2 Resistance to flame of fabric materials – Supplied breathable gas RPD
22 7.2.3 Radiant heat
7.2.4 Resistance to hot particles (embers/sparks/ash) – Supplied breathable gas RPD and filtering RPD
23 7.2.5 Chemical resistance of materials – Supplied breathable gas RPD
24 7.2.6 Chemical resistance of visor only – Supplied breathable gas RPD and filtering RPD
25 7.2.7 Contact with hot and cold surfaces generated by the RPD
7.2.8 Avoidance of frictional sparks – Supplied breathable gas RPD and filtering RPD
7.2.9 Mechanical Requirement
26 7.2.10 Requirements for audible warning devices – Supplied breathable gas RPD
27 7.2.11 Practical performance requirements – Supplied breathable gas RPD and filtering RPD
29 7.2.12 Requirements for RPD used in explosive atmospheres – Supplied breathable gas RPD and filtering RPD
7.2.13 Antistatic properties – Supplied breathable gas RPD and filtering RPD
30 7.3 Pre-conditioning of supplied breathable gas RPD and filtering RPD
7.3.1 General
7.3.2 Exposure to vibration and shock – Marine – Supplied breathable gas RPD
31 7.3.3 Exposure to vibration and shock – Mining – Supplied breathable gas RPD and filtering RPD
7.3.4 Resistance to changes in atmospheric pressure – Supplied breathable gas RPD and filtering RPD
32 7.3.5 Enhanced resistance to corrosion – Intermittent exposure – Supplied breathable gas RPD and filtering RPD
7.3.6 Exposure to impact from drop
33 7.3.7 Exposure to abrasive blasting – Supplied breathable gas RPD and filtering RPD
34 8 Testing
8.1 General
8.2 Inspection
8.3 Hose permeation
8.3.1 Hose material
8.3.2 Sampling air
35 8.3.3 Test equipment
37 8.4 Testing of leak tightness using positive pressure
9 Marking
38 10 Information supplied by the RPD manufacturer

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BS ISO 17420-7:2021
$167.15