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GB 24538-2025: Fall protection - Energy absorbers
Status: Valid GB 24538: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 24538-2025 | English | 359 |
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Fall protection - Energy absorbers
| Valid |
GB 24538-2025
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| GB/T 24538-2009 | English | 279 |
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Personal fall protection equipment -- Energy absorbers
| Valid |
GB/T 24538-2009
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Basic data | Standard ID | GB 24538-2025 (GB24538-2025) | | Description (Translated English) | Fall protection - Energy absorbers | | Sector / Industry | National Standard | | Classification of Chinese Standard | C73 | | Classification of International Standard | 13.340.99 | | Word Count Estimation | 18,171 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-09-01 | | Older Standard (superseded by this standard) | GB/T 24538-2009 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB 24538-2025: Fall protection - Energy absorbers---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB24538-2025
ICS 13.340.99
CCSC73
National Standard of the People's Republic of China
Replaces GB/T 24538-2009
Fall protection buffer
Released on August 29, 2025
Implementation on September 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Technical Requirements 2
5 Test Method 3
6 Inspection Rules 8
7 Permanent Marking 9
8 Manufacturer's Information 9
Reference 10
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 24538-2009 "Fall protection buffer", compared with GB/T 24538-2009, except for the structural adjustment and
In addition to editorial changes, the main technical changes are as follows.
a) The scope has been changed (see Chapter 1, Chapter 1 of the.2009 edition);
b) The definition of buffer has been changed (see 3.1, 3.1 of the.2009 edition);
c) The definition of the length between endpoints has been changed (see 3.2, 3.4 of the.2009 edition);
d) The definition of permanent deformation has been changed (see 3.3, 3.2 of the.2009 edition);
e) The terms and definitions of free fall distance were deleted (see 3.5 of the.2009 edition);
f) Change “braking force” to “peak impact force” (see 3.4, 3.6 of the.2009 edition);
g) Added the terms and definitions of minimum rated load, maximum rated load, and tie (see 3.5 to 3.7);
h) The definition of maximum expanded length has been changed (see 3.8, 3.3 of the.2009 edition);
i) The classification has been deleted (see Chapter 4 of the.2009 edition);
j) Change “general requirements” to “design and construction” (see 4.1, 5.1 of the.2009 edition);
k) Deleted basic technical performance (see 5.2 of the.2009 edition);
l) Change “static mechanical properties” to “initial deformation” and “static load”, and change the technical requirements and test methods (see 4.2,
4.3, 5.3, 5.4, 5.2.1, 6.2, 6.3 of the.2009 edition);
m) Changed "dynamic mechanical properties" to "dynamic performance" and changed the technical requirements and test methods (see 4.4, 5.5,.2009
5.2.2, 6.4 of the.2016 edition);
n) Changed “special environmental technical performance” to “special environmental performance”, and changed the technical requirements and test methods (see 4.6,
5.7, 5.3 and 6.6 of the.2009 edition);
o) The test equipment has been changed (see 5.1, 6.1 of the.2009 edition);
p) The corrosion resistance test method has been changed (see 5.6, 6.5 of the.2009 edition);
q) The content of “Permanent Marking” has been changed (see Chapter 7, 8.1 of the.2009 edition);
r) The content of “Information provided by the manufacturer” has been changed (see Chapter 8, 8.2 of the.2009 edition).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the Ministry of Emergency Management of the People's Republic of China.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2009 as GB/T 24538-2009;
---This is the first revision.
Fall protection buffer
1 Scope
This document specifies the technical requirements, inspection rules, permanent marking and information to be provided by the manufacturer for the buffers and describes the corresponding tests
method.
This document applies to buffers used for working at heights.
This document does not apply to buffers used in sports, firefighting, etc.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB 6095-2021 Fall protection safety belts
GB/T 10125 Artificial atmosphere corrosion test Salt spray test
GB/T 12903 Terminology of Personal Protective Equipment
GB 24543 Fall protection safety rope
3 Terms and Definitions
The terms and definitions defined in GB/T 12903, GB 6095-2021 and the following apply to this document.
3.1
Buffer energy absorber
A component connected in series between the lanyard and the hanging point to absorb impact energy in the event of a fall.
3.2
Pincentrelength
The straight-line distance between the force-bearing points at both ends of the buffer (3.1).
Note. See Figure 1 for a schematic diagram of the buffer end-to-end length.
Figure 1 Schematic diagram of the buffer end-to-end length
3.3
permanent deformation permanent extension
During dynamic performance testing, the difference between the end point lengths (3.2) of the buffer (3.1) before and after expansion.
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