AS/NZS ISO 17420.3:2021
Respiratory Protective Devices – Performance requirements, Part 3: Thread Connection
AS/NZS ISO 17420.3:2021 identically adopts ISO 17420-3:2012 for Australia and New Zealand, which applies to an unassisted filtering device and specifies a standard thread connection between a filter and the respiratory interface as required in AS/NZS 17420.2. This document also includes the description of test simulators that are necessary for the assessment of some of the requirements. KEYWORDS: Respiratory protective devices; Filtering device; Thread connection
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$155.70 NZD
|
|
| HardCopy |
$173.00 NZD
|
|
| Networkable PDF |
Price varies
|
|
| Online Library ( Annual subscription) |
Info
Price varies
Online Library subscription pricing The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz. |
AS/NZS ISO 17420.3:2021 Respiratory protective devices - Performance requirements Thread connection
Preface
Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Requirements
4.1 Elements of thread connection
4.2 Sealing element
4.3 Geometry of thread profile
4.3.1 Circularity of threads
4.3.2 Male thread connector
4.3.3 Female thread connector
4.3.4 Sealing element
4.3.5 Absence of geometric interference
4.4 Physical and mechanical requirements of the thread connection
4.4.1 Resistance of the connectors to pull forces
4.4.2 Physical and mechanical requirements of the sealing element
5 Testing
5.1 Visual inspection
5.2 Circularity of threads
5.2.1 Circularity of male threads
5.2.2 Circularity of female threads
5.3 Geometry of male thread connector
5.4 Geometry of female thread connector
5.5 Beginning of the effective thread of the male connection
5.6 Resistance of the connectors to pull forces
6 Marking and identification
Bibliography
Keep me up-to-date
Sign up to receive updates when there are changes to this standard
Related Information
Similar Standards
-
AS/NZS 16900.14:2021
Respiratory protective devices - Methods of test and test equipment, Part 14: Measurement of sound pressure level
-
AS/NZS 1715:2009
Selection, use and maintenance of respiratory protective equipment
-
AS/NZS 17420.1:2022
Respiratory protective devices – Performance requirements Part 1: General
-
AS/NZS 17420.2:2021
Respiratory protective devices - Performance requirements, Part 2: Requirements for filtering RPD
AS/NZS ISO 17420.3:2021 Respiratory protective devices - Performance requirements Thread connection
Preface
Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Requirements
4.1 Elements of thread connection
4.2 Sealing element
4.3 Geometry of thread profile
4.3.1 Circularity of threads
4.3.2 Male thread connector
4.3.3 Female thread connector
4.3.4 Sealing element
4.3.5 Absence of geometric interference
4.4 Physical and mechanical requirements of the thread connection
4.4.1 Resistance of the connectors to pull forces
4.4.2 Physical and mechanical requirements of the sealing element
5 Testing
5.1 Visual inspection
5.2 Circularity of threads
5.2.1 Circularity of male threads
5.2.2 Circularity of female threads
5.3 Geometry of male thread connector
5.4 Geometry of female thread connector
5.5 Beginning of the effective thread of the male connection
5.6 Resistance of the connectors to pull forces
6 Marking and identification
Bibliography
AS/NZS ISO 17420.3:2021
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.