ASTM F2865-13

Standard Guide for Classifying the Degrees of Ingress of Dust and Water into a Membrane Switch

SIGNIFICANCE AND USE
5.1 Ingression protection classifications are widely used by manufacturers for specifying the level of protection offered by enclosures.  
5.2 An example of such a classification scheme is IEC 60529. Membrane switch manufacturers are often asked to meet these standards, however the test methods specified within these standards do not address considerations specific to membrane switches.  
5.3 The MSIP classification system considers the membrane switch separately from the testing and IP codes used for classifying the enclosure when subject to similar test conditions.  
5.4 Ingression testing can be useful to identify design deficiencies.
SCOPE
1.1 This guide establishes a classification system and references test methods for verifying the degrees of:  
1.1.1 The ingress of dust into the internal layers of a membrane switch.  
1.1.2 Ingress of water into the internal layers of a membrane switch.  
1.1.3 Where external test methods are referenced, this guide specifies the special conditions that shall be considered in applying these tests to membrane switches and how the results are interpreted.  
1.2 This guide references test methods that can be used to establish the ingress classification of a membrane switch.  
1.3 This guide utilizes the test methods and reporting structure of IEC 60529 – (Degrees of Protection Provided by Enclosures) modified for membrane switches.

General Information

• Status: Historical
• Publication Date: 31-Dec-2012
• ICS: 31.220.20 - Switches
• Technical Committee: F01 - Electronics
• Drafting Committee: F01.18 - Printed Electronics

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2865 − 13
Standard Guide for
Classifying the Degrees of Ingress of Dust and Water into a
1
Membrane Switch
This standard is issued under the fixed designation F2865; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This guide establishes a classification system and refer- 3.1 Definitions of Terms Specific to This Standard:
ences test methods for verifying the degrees of:
3.1.1 membrane switch, n—a momentary switching device
1.1.1 The ingress of dust into the internal layers of a
in which at least one contact is on, or made of, a flexible
membrane switch.
substrate.
1.1.2 Ingressofwaterintotheinternallayersofamembrane
switch.
4. Classification System
1.1.3 Where external test methods are referenced, this guide
4.1 The ingress classification of a membrane switch is
specifies the special conditions that shall be considered in
designated by the MSIP code:
applying these tests to membrane switches and how the results
4.1.1 MSIP 6 5 A
are interpreted.
4.1.1.1 MSIP = Membrane Switch Ingress classification.
1.2 This guide references test methods that can be used to
4.1.1.2 1st Numeral = Dust Protection Code (see Table 1).
establish the ingress classification of a membrane switch.
4.1.1.3 2nd Numeral = Water (Liquid) Protection Code (see
1.3 This guide utilizes the test methods and reporting
Table 2).
structure of IEC 60529 – (Degrees of Protection Provided by
4.1.1.4 A = If “A” is present then method or media deviates
Enclosures) modified for membrane switches.
from this guide and is reported.
4.1.2 The MSIP code comprises a series of numerals. Each
2. Referenced Documents
numeral represents the level of ingress offered by the mem-
2
2.1 ASTM Standards:
brane switch to each contaminant. In this guide when address-
F1578 Test Method for Contact Closure Cycling of a Mem-
ing only the 1st or 2nd numeral the other numeral is replaced
brane Switch
with an “X” for clarity. For example, MSIP X5 refers only to
F1595 Practice forViewing Conditions forVisual Inspection
testing for water ingression. The “X” notation is not used as a
of Membrane Switches
final designation. If testing is not completeda“0”is used for
F1680 Test Method for Determining Circuit Resistance of a
that numeral (see Table 1 and Table 2).
Membrane Switch
4.1.3 The numeric designations for dust and water are based
F1689 Test Method for Determining the Insulation Resis-
on those classified under IEC 60529.
tance of a Membrane Switch
F2592 Test Method for Measuring the Force-Displacement
5. Significance and Use
of a Membrane Switch
3
5.1 Ingression protection classifications are widely used by
2.2 IEC Standard:
manufacturers for specifying the level of protection offered by
60529 Degrees of Protection Provided by Enclosures
enclosures.
5.2 An example of such a classification scheme is IEC
1
This guide is under the jurisdiction of ASTM Committee F01 on Electronics
60529. Membrane switch manufacturers are often asked to
and is the direct responsibility of Subcommittee F01.18 on Membrane Switches.
meet these standards, however the test methods specified
Current edition approved Jan. 1, 2013. Published January 2013. Originally
approved in 2011. Last previous edition approved in 2011 as F2865-11. DOI:
within these standards do not address considerations specific to
10.1520/F2865-13.
membrane switches.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.3 The MSIPclassification system considers the membrane
Standards volume information, refer to the standard’s Document Summary page on
switch separately from the testing and IP codes used for
the ASTM website.
3
classifying the enclosure when subject to similar test condi-
Available from International Electrotechnical Commission (IEC), 3, rue de
Varembé, P.O. Box 131, CH-1211 Geneva 20, Switzerland, http://www.iec.ch. tions.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2865 − 13
TABLE 1 1st Numeral = Dust Protection Code
Numerals or Letters Degree of Ingress Requirement Summary Test Equipment
0 Not tested or no ingress none N/A
prevention demonstrated
A
1,2,3,4 Not applicable to membrane none N/A
switches
5 Dust protected Ingress of dust is not totally prevented. IEC 60529 – Dust Chamber
The switch operates as declared and Category2–Nopressure difference created in the
the post-test circuit resistance change is chamber
less than +30 % of pre-test, and below
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2865 − 11 F2865 − 13
Standard Guide for
Classifying the Degrees of Ingression Protection Provided
1
by Ingress of Dust and Water into a Membrane Switch
This standard is issued under the fixed designation F2865; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This guide establishes a classification system and references test methods for verifying the degrees of protection provided
by a membrane switch against the following:of:
1.1.1 The ingress of dust into the internal layers of a membrane switch.
1.1.2 Ingress of water into a membrane switch, or the entry into the finished product on which it is mounted.the internal layers
of a membrane switch.
1.1.3 It can be expanded to incorporate the degrees of protection from other environmental contaminants (such as salt fog) as
these tests are developed either by ASTM, or existing test methods developed by other organizations are determined to be
appropriate.
1.1.3 Where external test methods are referenced, this guide specifies the special conditions that shall be considered in applying
these tests to membrane switches and how the results are interpreted.
1.1.5 The IP rating is based on the switch construction only and does not consider the effects of the switch body as a sealant
for the enclosure.
1.1.6 For ingress of dust, numerals 5 and 6, the test is carried out according to category 2 (testing at atmospheric pressure).
1.2 This guide references appropriate test methods for verifying that a membrane switch satisfies the level of protection
specified by a given classification.that can be used to establish the ingress classification of a membrane switch.
1.3 This guide is a modification of the classification system described within utilizes the test methods and reporting structure
of IEC 60529 – Degrees of Protection Offered By An Electronic Enclosure.(Degrees of Protection Provided by Enclosures)
modified for membrane switches.
2. Referenced Documents
2
2.1 ASTM Standards:
F1578 Test Method for Contact Closure Cycling of a Membrane Switch
F1595 Practice for Viewing Conditions for Visual Inspection of Membrane Switches
F1680 Test Method for Determining Circuit Resistance of a Membrane Switch
F1689 Test Method for Determining the Insulation Resistance of a Membrane Switch
F2592 Test Method for Measuring the Force-Displacement of a Membrane Switch
3
2.2 IEC Standard:
60529 Degrees of Protection Offered by an Electronic EnclosureProvided by Enclosures
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 membrane switch, n—a momentary switching device in which at least one contact is on, or made of, a flexible substrate.
4. Classification System
4.1 The degree of protection provided by ingress classification of a membrane switch is designated by the MS-IPMSIP code:
4.1.1 MS A IP MSIP 6 5 A
1
This guide is under the jurisdiction of ASTM Committee F01 on Electronics and is the direct responsibility of Subcommittee F01.18 on Membrane Switches.
Current edition approved July 1, 2011Jan. 1, 2013. Published August 2011January 2013. Originally approved in 2011. Last previous edition approved in 2011 as F2865-11.
DOI: 10.1520/F2865-11.10.1520/F2865-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from International Electrotechnical Commission (IEC), 3, rue de Varembé, P.O. Box 131, CH-1211 Geneva 20, Switzerland, http://www.iec.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2865 − 13
4.1.1.1 MSMSIP = membrane switch.Membrane Switch Ingress classification.
4.1.1.2 A = If “A” is present in code then method or media deviates from this standard.
4.1.1.3 IP = Standard Ingress Protection designation.
4.1.1.2 1st Numeral = Dust Protection Code (see Table 1).
4.1.1.3 2nd Numeral = Water (Liquid) Protection Code (see Table 2).
4.1.1.4 A = If “A” is present then method or media deviates from this guide and is reported.
4.1.2 The MSIP code comprises a series of numerals. Each numeral represents the level of ingress protection offered
...