ASTM E761/E761M-92(2023)
(Test Method)Standard Test Method for Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural Members
Standard Test Method for Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural Members
SIGNIFICANCE AND USE
4.1 The intent of this test method is to determine properties of direct-applied SFRM that may be used to provide an indication of serviceability. Satisfactory performance of fire-resistive material applied to structural members and assemblies depends upon its ability while in place to withstand the various influences that may occur during the life of the structure, as well as upon its satisfactory performance under fire tests.
4.2 This test method measures the compressive strength of SFRM and is a measure of the resistance to deformation under a compressive load. It is an indication of the ability of SFRM to remain in place and resist removal during anticipated service conditions.
SCOPE
1.1 This test method covers a procedure for measuring the compressive strength of sprayed fire-resistive material (SFRM) applied to a rigid substrate. These fire-resistive materials include sprayed fibrous and cementitious materials applied directly in contact with these structural members. The test method is applicable to laboratory procedure.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.3 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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
- 14-May-2023
- Technical Committee
- E06 - Performance of Buildings
- Drafting Committee
- E06.21 - Serviceability
Relations
- Effective Date
- 01-Dec-2023
- Effective Date
- 01-Sep-2023
- Effective Date
- 01-Oct-2019
- Effective Date
- 01-Jul-2019
- Effective Date
- 15-Apr-2019
- Effective Date
- 01-Mar-2019
- Effective Date
- 01-Nov-2018
- Effective Date
- 01-Nov-2018
- Effective Date
- 01-Oct-2018
- Effective Date
- 01-Sep-2018
- Effective Date
- 01-Jul-2018
- Effective Date
- 01-Jun-2018
- Effective Date
- 01-Mar-2018
- Effective Date
- 01-Mar-2018
- Effective Date
- 01-Nov-2017
Overview
ASTM E761/E761M-92(2023), Standard Test Method for Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural Members, specifies the laboratory procedure for determining the compressive strength of sprayed fire-resistive materials (SFRMs). These materials, including both sprayed fibrous and cementitious types, are commonly applied to structural substrates such as steel to enhance fire resistance. Understanding the compressive strength of SFRM is essential for assessing its serviceability, durability, and ability to remain in place during the life cycle of a building or structure.
Developed under the guidelines of the World Trade Organization Technical Barriers to Trade (TBT) Committee, this international standard ensures globally recognized and harmonized testing approaches for fire-resistive materials used in construction.
Key Topics
- Compressive Strength Measurement: The standard outlines a method for applying a crushing load to SFRM-coated steel specimens under controlled laboratory conditions to determine the resistance to deformation, either up to 10% deformation or specimen failure.
- Scope of Application: Relevant for both fibrous and cementitious sprayed fire-resistive materials directly applied to rigid substrates such as structural steel members.
- Laboratory Testing Conditions: Specifies conditioning of test specimens, including humidity and temperature controls, specimen preparation (such as cleaning and surface capping), and use of precise testing equipment.
- Safety and Compliance: Notes the need for users of the standard to implement proper safety, health, and environmental protocols and assess regulatory requirements.
- International Alignment: Developed in accordance with internationally recognized standardization principles for broad acceptance and compatibility.
- Reporting Requirements: Specifies necessary data to be reported, including compressive strength values, mode of failure, specimen thickness, and density.
Applications
ASTM E761/E761M-92(2023) serves several practical roles in the building and construction industry, particularly for:
- Quality Assurance and Certification: Laboratories and manufacturers use this test method to verify the physical performance of SFRM before it is approved for use on structural members in new constructions or retrofits.
- Building Safety Compliance: Structural engineers, architects, and inspectors rely on compressive strength data to ensure that fire-resistive materials meet regulatory fire safety standards and will perform reliably under service conditions.
- Product Comparison and Development: Material producers leverage the standard to compare new fire-resistive products, enhance formulations, and demonstrate improvement in durability and fire protection efficacy.
- Contractor and Installer Guidance: Helps installation professionals confirm that field-applied SFRMs are consistent with laboratory-tested properties, supporting the material’s suitability for long-term structural fire resistance.
Related Standards
Several ASTM standards are referenced or often used in conjunction with ASTM E761/E761M-92(2023) for comprehensive assessment of fire-resistive materials:
- ASTM E119 - Test Methods for Fire Tests of Building Construction and Materials
- ASTM E605/E605M - Test Methods for Thickness and Density of Sprayed Fire-Resistive Material (SFRM) Applied to Structural Members
- ASTM E84 - Test Method for Surface Burning Characteristics of Building Materials
These standards collectively support a robust framework for evaluating, specifying, and ensuring the performance of sprayed fire-resistive materials in structural fire protection.
By adhering to ASTM E761/E761M-92(2023), organizations can ensure reliable, repeatable evaluations of SFRM compressive strength, which is critical for fire safety, product development, and regulatory compliance in construction projects worldwide.
Get Certified
Connect with accredited certification bodies for this standard
NSF International
Global independent organization facilitating standards development and certification.
CIS Institut d.o.o.
Personal Protective Equipment (PPE) certification body. Notified Body NB-2890 for EU Regulation 2016/425 PPE.
Kiwa BDA Testing
Building and construction product certification.
Sponsored listings
Frequently Asked Questions
ASTM E761/E761M-92(2023) is a standard published by ASTM International. Its full title is "Standard Test Method for Compressive Strength of Sprayed Fire-Resistive Material Applied to Structural Members". This standard covers: SIGNIFICANCE AND USE 4.1 The intent of this test method is to determine properties of direct-applied SFRM that may be used to provide an indication of serviceability. Satisfactory performance of fire-resistive material applied to structural members and assemblies depends upon its ability while in place to withstand the various influences that may occur during the life of the structure, as well as upon its satisfactory performance under fire tests. 4.2 This test method measures the compressive strength of SFRM and is a measure of the resistance to deformation under a compressive load. It is an indication of the ability of SFRM to remain in place and resist removal during anticipated service conditions. SCOPE 1.1 This test method covers a procedure for measuring the compressive strength of sprayed fire-resistive material (SFRM) applied to a rigid substrate. These fire-resistive materials include sprayed fibrous and cementitious materials applied directly in contact with these structural members. The test method is applicable to laboratory procedure. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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 4.1 The intent of this test method is to determine properties of direct-applied SFRM that may be used to provide an indication of serviceability. Satisfactory performance of fire-resistive material applied to structural members and assemblies depends upon its ability while in place to withstand the various influences that may occur during the life of the structure, as well as upon its satisfactory performance under fire tests. 4.2 This test method measures the compressive strength of SFRM and is a measure of the resistance to deformation under a compressive load. It is an indication of the ability of SFRM to remain in place and resist removal during anticipated service conditions. SCOPE 1.1 This test method covers a procedure for measuring the compressive strength of sprayed fire-resistive material (SFRM) applied to a rigid substrate. These fire-resistive materials include sprayed fibrous and cementitious materials applied directly in contact with these structural members. The test method is applicable to laboratory procedure. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.3 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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 E761/E761M-92(2023) is classified under the following ICS (International Classification for Standards) categories: 13.220.50 - Fire-resistance of building materials and elements. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM E761/E761M-92(2023) has the following relationships with other standards: It is inter standard links to ASTM E84-23d, ASTM E84-23c, ASTM E119-19, ASTM E84-19b, ASTM E84-19a, ASTM E84-19, ASTM E119-18ce1, ASTM E119-18c, ASTM E84-18b, ASTM E119-18b, ASTM E84-18a, ASTM E119-18a, ASTM E119-18, ASTM E84-18, ASTM E84-17a. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM E761/E761M-92(2023) 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: E761/E761M − 92 (Reapproved 2023)
Standard Test Method for
Compressive Strength of Sprayed Fire-Resistive Material
Applied to Structural Members
This standard is issued under the fixed designation E761/E761M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope E84 Test Method for Surface Burning Characteristics of
Building Materials
1.1 This test method covers a procedure for measuring the
E119 Test Methods for Fire Tests of Building Construction
compressive strength of sprayed fire-resistive material (SFRM)
and Materials
applied to a rigid substrate. These fire-resistive materials
E605/E605M Test Methods for Thickness and Density of
include sprayed fibrous and cementitious materials applied
Sprayed Fire-Resistive Material (SFRM) Applied to
directly in contact with these structural members. The test
Structural Members
method is applicable to laboratory procedure.
1.2 The values stated in either SI units or inch-pound units 3. Summary of Test Method
are to be regarded separately as standard. The values stated in
3.1 The compressive strength of SFRM applied to a steel
each system are not necessarily exact equivalents; therefore, to
sheet is determined by applying a crushing load normal to the
ensure conformance with the standard, each system shall be
surface of the specimen. This test method measures the stress
used independently of the other, and values from the two
at 10 % deformation or at failure, whichever is smaller.
systems shall not be combined.
4. Significance and Use
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.1 The intent of this test method is to determine properties
responsibility of the user of this standard to establish appro- of direct-applied SFRM that may be used to provide an
priate safety, health, and environmental practices and deter- indication of serviceability. Satisfactory performance of fire-
mine the applicability of regulatory limitations prior to use. resistive material applied to structural members and assemblies
1.4 This international standard was developed in accor- depends upon its ability while in place to withstand the various
dance with internationally recognized principles on standard- influences that may occur during the life of the structure, as
ization established in the Decision on Principles for the
well as upon its satisfactory performance under fire tests.
Development of International Standards, Guides and Recom-
4.2 This test method measures the compressive strength of
mendations issued by the World Trade Organization Technical
SFRM and is a measure of the resistance to deformation under
Barriers to Trade (TBT) Committee.
a compressive load. It is an indication of the ability of SFRM
to remain in place and resist removal during anticipated service
2. Referenced Documents
conditions.
2.1 ASTM Standards:
5. Apparatus
D2092 Guide for Preparation of Zinc-Coated (Galvanized)
Steel Surfaces for Painting (Withdrawn 2008)
5.1 Testing Machine—Any form of standard hydraulic or
mechanical compression testing machine accurate to 0.005 kg
[0.01 lb] and 0.25 mm [0.001 in.].
This test method is under the jurisdiction of ASTM Committee E06 on
5.2 Spherical Bearing Block Assembly, having a plane
Performance of Buildings and is the direct responsibility of Subcommittee E06.21
on Serviceability.
bearing surface of 150 mm [6 in.] square. The upper bearing
Current edition approved May 15, 2023. Published May 2023. Originally
shall be a spherically seated, hardened metal block firmly
approved in 1980. Last previous edition approved in 2020 as E761/
attached at the center of the upper head of the machine. The
E761M – 92 (2020). DOI: 10.1520/E0761_E0761M-92R23.
center of the sphere shall lie at the center of the surface held in
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
its spherical seat, but shall be free to turn in any direction, and
Standards volume information, refer to the standard’s Document Summary page on
its perimeter shall have at least 6 mm [ ⁄4 in.] clearance from
the ASTM website.
the head to allow for specimens whose bearing surfaces are not
The last approved version of this historical standard is referenced on
www.astm.org. exactly parallel (see Fig. 1).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E761/E761M − 92 (2023)
7.4 Testing may be performed after it has been determined
that the specimen has reached constant weight.
7.5 Where necessary, even the surface of the
...
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...