ASTM B1004-16(2022)
(Practice)Standard Practice for Contact Performance Classification of Electrical Connection Systems
Standard Practice for Contact Performance Classification of Electrical Connection Systems
SIGNIFICANCE AND USE
5.1 This practice is based on the use of electrical resistance as an indicator of contact performance. This is the fundamental physical attribute that reflects the condition of the electrical contact interface(s) within a connection. For practical current-carrying electrical connections, resistance may be calculated from potential drop measurements, as described, for example, in Test Method B539 and B812.
5.2 This practice accommodates the use of multiple test methods, as may be required to predict performance in a given application.
5.3 This practice applies only to the performance of the current-carrying contact interface(s). It does not characterize the performance of insulating materials or other components of a complete connection system.
5.4 Specifiers may use the performance classification as a requirement for a given application.
5.5 Manufacturers may use the performance classification to reflect the relative quality of their products.
SCOPE
1.1 This practice provides a method of specifying performance requirements for (or reporting test results of) electrical contact and connection systems. Both conductor and connector system performance may be specified by this practice, separately or in combination.
1.2 This practice may be used for separable or permanent contacts employing metallic conducting components.
1.3 This practice is applicable to both signal and power applications.
1.4 This practice is intended to be used for specifying performance of connectors and connection systems that are marketed for general public and trade application, as for instance for use in building wiring, electronics, and vehicles.
1.5 This practice is not intended to be used to specifying the performance of connection systems for specialized applications, such as military, industrial, aircraft, power distribution, and medical apparatus.
1.6 This practice does not specify the sample preparation or test sequences required for determining contact performance. It is the responsibility of the user of this practice to determine the applied test sequence(s) appropriate for the application.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provide by the manufacturer, to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
- Status
- Published
- Publication Date
- 31-Mar-2022
- Technical Committee
- B02 - Nonferrous Metals and Alloys
Relations
- Effective Date
- 01-Nov-2019
- Effective Date
- 01-Nov-2018
- Effective Date
- 01-Aug-2013
- Effective Date
- 01-Aug-2013
- Effective Date
- 01-Feb-2013
- Effective Date
- 01-Mar-2008
- Effective Date
- 01-Mar-2008
- Effective Date
- 01-May-2007
- Effective Date
- 01-May-2004
- Effective Date
- 10-May-2002
- Effective Date
- 10-May-2002
- Effective Date
- 10-Oct-2000
- Effective Date
- 10-May-1996
Overview
ASTM B1004-16(2022): Standard Practice for Contact Performance Classification of Electrical Connection Systems establishes a systematic method for classifying the performance of electrical connections based on their contact characteristics, specifically their electrical resistance. This standard offers clear guidance for both specifying requirements and reporting test results for conductor and connector systems used in a wide range of general public and trade applications. It provides a means for manufacturers and specifiers to communicate expectations regarding the electrical integrity and durability of connectors and connection systems, serving applications such as building wiring, electronics, and vehicles.
Key Topics
- Performance Classification by Electrical Resistance: The standard uses electrical resistance as a core indicator of an electrical contact’s quality and reliability. Lower resistance typically reflects better contact performance, making it a primary measurement for classification.
- Applicability to Diverse Connection Types: Suitable for both separable and permanent metallic contacts, encompassing connectors used in signal and power applications.
- Classification System: Establishes three classes (A, B-xx, and C) based on the predicted stability of connection resistance under stated conditions. Class A indicates resistance stability for unlimited duration, Class B-xx for a defined minimum number of years, and Class C is used when no performance prediction is made.
- End-User Guidance: Addresses responsibilities for determining appropriate testing methods and safety practices relevant to the intended application and conditions of use.
- Broad, Non-Specialized Focus: Specifically designed for mainstream applications, while excluding specialized sectors like military, medical, and high-voltage power distribution systems.
Applications
ASTM B1004-16(2022) is directly applicable to the assessment and classification of current-carrying interfaces within electrical connection systems, supporting quality, interoperability, and safety in various end uses:
- Building Wiring Systems: Facilitates specification and verification of electrical connector performance in residential and commercial installations.
- Automotive and Vehicle Electronics: Ensures reliability and safety in vehicle wiring harnesses and electrical subsystems.
- Consumer Electronics: Enables manufacturers and specifiers to communicate electrical contact quality, contributing to durable device performance.
- General Electrical Installations: Useful wherever signal or power connections are made with metallic contacts, offering confidence to both manufacturers and consumers regarding product quality.
Manufacturers may use the classification to differentiate products, emphasizing longevity or performance in marketing and technical documentation. Specifiers and designers can use this standard to select products meeting required performance thresholds, improving system reliability and helping to manage field failure risks.
Related Standards
ASTM B1004-16(2022) references several other standards essential for comprehensive evaluation of electrical connection systems:
- ASTM B539: Test Methods for Measuring Resistance of Electrical Connections (Static Contacts) - Provides methodologies for resistance measurement, foundational to B1004’s classification practice.
- ASTM B542: Terminology Relating to Electrical Contacts and Their Use - Supplies consistent definitions used within the context of contact performance.
- ASTM B812: Test Method for Resistance to Environmental Degradation of Electrical Pressure Connections Involving Aluminum and Intended for Residential Applications - Covers resistance testing in environmentally challenged applications commonly encountered in the field.
Conclusion
ASTM B1004-16(2022) offers practical, performance-based classification for electrical connection systems, supporting enhanced reliability, safety, and transparency in mainstream electrical, electronic, and vehicle applications. By standardizing performance criteria and reporting, it assists manufacturers, engineers, and purchasers in selecting and specifying electrical components that meet defined quality and operational expectations. The standard’s alignment with internationally recognized principles further ensures broad compatibility and applicability.
Frequently Asked Questions
ASTM B1004-16(2022) is a standard published by ASTM International. Its full title is "Standard Practice for Contact Performance Classification of Electrical Connection Systems". This standard covers: SIGNIFICANCE AND USE 5.1 This practice is based on the use of electrical resistance as an indicator of contact performance. This is the fundamental physical attribute that reflects the condition of the electrical contact interface(s) within a connection. For practical current-carrying electrical connections, resistance may be calculated from potential drop measurements, as described, for example, in Test Method B539 and B812. 5.2 This practice accommodates the use of multiple test methods, as may be required to predict performance in a given application. 5.3 This practice applies only to the performance of the current-carrying contact interface(s). It does not characterize the performance of insulating materials or other components of a complete connection system. 5.4 Specifiers may use the performance classification as a requirement for a given application. 5.5 Manufacturers may use the performance classification to reflect the relative quality of their products. SCOPE 1.1 This practice provides a method of specifying performance requirements for (or reporting test results of) electrical contact and connection systems. Both conductor and connector system performance may be specified by this practice, separately or in combination. 1.2 This practice may be used for separable or permanent contacts employing metallic conducting components. 1.3 This practice is applicable to both signal and power applications. 1.4 This practice is intended to be used for specifying performance of connectors and connection systems that are marketed for general public and trade application, as for instance for use in building wiring, electronics, and vehicles. 1.5 This practice is not intended to be used to specifying the performance of connection systems for specialized applications, such as military, industrial, aircraft, power distribution, and medical apparatus. 1.6 This practice does not specify the sample preparation or test sequences required for determining contact performance. It is the responsibility of the user of this practice to determine the applied test sequence(s) appropriate for the application. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provide by the manufacturer, to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
SIGNIFICANCE AND USE 5.1 This practice is based on the use of electrical resistance as an indicator of contact performance. This is the fundamental physical attribute that reflects the condition of the electrical contact interface(s) within a connection. For practical current-carrying electrical connections, resistance may be calculated from potential drop measurements, as described, for example, in Test Method B539 and B812. 5.2 This practice accommodates the use of multiple test methods, as may be required to predict performance in a given application. 5.3 This practice applies only to the performance of the current-carrying contact interface(s). It does not characterize the performance of insulating materials or other components of a complete connection system. 5.4 Specifiers may use the performance classification as a requirement for a given application. 5.5 Manufacturers may use the performance classification to reflect the relative quality of their products. SCOPE 1.1 This practice provides a method of specifying performance requirements for (or reporting test results of) electrical contact and connection systems. Both conductor and connector system performance may be specified by this practice, separately or in combination. 1.2 This practice may be used for separable or permanent contacts employing metallic conducting components. 1.3 This practice is applicable to both signal and power applications. 1.4 This practice is intended to be used for specifying performance of connectors and connection systems that are marketed for general public and trade application, as for instance for use in building wiring, electronics, and vehicles. 1.5 This practice is not intended to be used to specifying the performance of connection systems for specialized applications, such as military, industrial, aircraft, power distribution, and medical apparatus. 1.6 This practice does not specify the sample preparation or test sequences required for determining contact performance. It is the responsibility of the user of this practice to determine the applied test sequence(s) appropriate for the application. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provide by the manufacturer, to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM B1004-16(2022) is classified under the following ICS (International Classification for Standards) categories: 31.220.10 - Plug-and-socket devices. Connectors. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B1004-16(2022) has the following relationships with other standards: It is inter standard links to ASTM B542-13(2019), ASTM B539-18, ASTM B539-02(2013), ASTM B812-96(2013), ASTM B542-13, ASTM B812-96(2008), ASTM B539-02(2008), ASTM B542-07, ASTM B542-04, ASTM B539-02e1, ASTM B539-02, ASTM B542-00, ASTM B812-96(2002)e1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B1004-16(2022) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B1004 − 16 (Reapproved 2022)
Standard Practice for
Contact Performance Classification of Electrical Connection
Systems
This standard is issued under the fixed designation B1004; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This practice provides a method of specifying perfor-
mance requirements for (or reporting test results of) electrical
2. Referenced Documents
contact and connection systems. Both conductor and connector
system performance may be specified by this practice, sepa-
2.1 ASTM Standards:
rately or in combination.
B539 Test Methods for Measuring Resistance of Electrical
Connections (Static Contacts)
1.2 This practice may be used for separable or permanent
B542 Terminology Relating to Electrical Contacts and Their
contacts employing metallic conducting components.
Use
1.3 This practice is applicable to both signal and power
B812 Test Method for Resistance to Environmental Degra-
applications.
dation of Electrical Pressure Connections Involving Alu-
1.4 This practice is intended to be used for specifying
minum and Intended for Residential Applications
performance of connectors and connection systems that are
marketed for general public and trade application, as for
3. Terminology
instance for use in building wiring, electronics, and vehicles.
3.1 Terms used in this practice are defined in Terminology
1.5 This practice is not intended to be used to specifying the
B542 except as noted in 3.2.
performance of connection systems for specialized
3.2 Definitions of Terms Specific to This Standard:
applications, such as military, industrial, aircraft, power
3.2.1 conductor, n—electrically conductive member carry-
distribution, and medical apparatus.
ing current to a contact interface. Examples are wire and cable,
1.6 This practice does not specify the sample preparation or
busbar, and conductive paths on an etched printed circuit
test sequences required for determining contact performance. It
board.
is the responsibility of the user of this practice to determine the
3.2.2 connection performance, n—the condition and behav-
applied test sequence(s) appropriate for the application.
ior of the contact interface(s) within the connection as indi-
1.7 This standard does not purport to address all of the
cated by electrical resistance and resistance change with time
safety concerns, if any, associated with its use. It is the
under the applied conditions.
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate 3.2.3 connection system, n—the completed electrical contact
Safety Data Sheet (SDS) for this product/material as provide by
interface and all associated parts, assembled as prescribed by
the manufacturer, to establish appropriate safety, health, and the manufacturer(s) for the intended service.
environmental practices and determine the applicability of
3.2.4 intended conditions of use, n—any combination of
regulatory limitations prior to use.
applied electrical, environmental, and other conditions associ-
1.8 This international standard was developed in accor-
ated with the intended and rated application.
dance with internationally recognized principles on standard-
3.2.5 nonincreasing, adj—as applied to connection resis-
ization established in the Decision on Principles for the
tance values, mathematically, a series of numbers that are
Development of International Standards, Guides and Recom-
bounded above.
This practice is under the jurisdiction of ASTM Committee B02 on Nonferrous
Metals and Alloys and is the direct responsibility of Subcommittee B02.05 on
Precious Metals and Electrical Contact Materials and Test Methods. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2022. Published April 2022. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2016. Last previous edition approved in 2016 as B1004 – 16. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/B1004-16R22. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B1004 − 16 (2022)
4. Perfor
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...