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GB/T 30661.10-2024: Wheelchair seating - Part 10: Resistance to ignition of postural support devices - Requirements and test methods
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Wheelchair seating - Part 10: Resistance to ignition of postural support devices - Requirements and test methods
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GB/T 30661.10-2024
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Standard similar to GB/T 30661.10-2024 GB/T 30661.13 GB/T 30661.9 GB/T 30661.12 Basic data | Standard ID | GB/T 30661.10-2024 (GB/T30661.10-2024) | | Description (Translated English) | Wheelchair seating - Part 10: Resistance to ignition of postural support devices - Requirements and test methods | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y14 | | Classification of International Standard | 11.180.10 | | Word Count Estimation | 39,353 | | Date of Issue | 2024-10-26 | | Date of Implementation | 2025-02-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 30661.10-2024: Wheelchair seating - Part 10: Resistance to ignition of postural support devices - Requirements and test methods
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ICS 11.180.10
CCSY14
National Standard of the People's Republic of China
Wheelchair seats - Part 10.Body support devices
Flame retardancy requirements and test methods
(ISO 16840-10.2021, IDT)
Released on October 26, 2024
Implementation on February 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 2
5 Health and safety of test personnel 2
6 devices 3
7 Test Procedure 5
8 Requirements 8
9 Inspection Report 8
10 Results Released 8
Appendix A (Informative) Design of a heat source device to replace cigarettes 10
Appendix B (Normative) Cleaning and Drying Procedures for Outer Covering Materials 14
Appendix C (Informative) Selection of surfaces at risk for testing 15
Appendix D (Informative) Test method using nickel-chromium wire coil as heat source 16
Appendix E (Informative) Guidelines for constructing test equipment using nickel-chromium coils 22
Appendix F (Informative) Test Report Example 29
Reference 32
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 is Part 10 of GB/T (Z) 30661 Wheelchair Seats. GB/T (Z) 30661 has been published as follows.
--- Part 1.Vocabulary, reference axis rules and measurement of body parts, body positions and body support surfaces;
--- Part 2.Determination of physical and mechanical properties of devices for maintaining tissue integrity - Seat cushions;
--- Part 3.Determination of static, impact and fatigue strength of body support devices;
--- Part 4.Seat systems for use in motor vehicles;
--- Part 6.Simulated use and determination of changes in seat cushion performance;
--- Part 9.Guidelines for seat interface pressure distribution;
--- Part 10.Flame retardancy requirements and test methods for body support devices;
--- Part 11.Determination of perspiration dissipation characteristics of seat cushions;
--- Part 12.Testing of seat cushion wrapping and sinking characteristics using a double hemisphere loader;
--- Part 13.Determination of lateral stability of seat cushions.
This document is equivalent to ISO 16840-10.2021 "Wheelchair seats - Part 10.Flame retardancy requirements and test methods for body support devices"
Test Methods".
The following minimal editorial changes have been made to this document.
--- Incorporate the content of ISO 16840-10.2021/Amd1.2024.
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 issued by the Ministry of Civil Affairs of the People's Republic of China.
This document is under the jurisdiction of the National Technical Committee for Standardization of Rehabilitation and Special Equipment for Persons with Disabilities (SAC/TC148).
This document was drafted by. National Rehabilitation Assistive Devices Research Center, National Rehabilitation Assistive Devices Research Center Rehabilitation Assistive Devices Quality Supervision and Inspection Center,
Shandong Haidike Medical Products Co., Ltd., Xiamen Kunjin Electronic Technology Co., Ltd., Linyi Aobo Textile Thread Co., Ltd., Shanghai Hubang
Intelligent Rehabilitation Equipment Co., Ltd. and China Industrial Textiles Association.
The main drafters of this document are. Gu Huiru, Zhang Weikang, Luan Huiqin, Guo Huan, Zhao Cishun, Cheng Guangqi, Yan Hong, Dong Dongdong, and Li Guanzhi.
introduction
Wheelchair Seats is a standard that ensures the performance and quality of wheelchair seats and accurately provides these performance and quality to relevant parties.
The users of chairs and cars want to know the performance and quality of the products, the manufacturers want to know how to achieve better quality, and the inspection agencies want to know how to achieve better quality.
Know how to inspect the product. Because the Wheelchair Seat is too long, and the parties using the document generally only need part of it.
Since the content is not updated synchronously, it is compiled in parts and is intended to consist of the following parts.
--- Part 1.Vocabulary, reference axis rules and measurement of body parts, body positions and body support surfaces;
--- Part 2.Determination of physical and mechanical properties of devices for maintaining tissue integrity - Seat cushions;
--- Part 3.Determination of static, impact and fatigue strength of body support devices;
--- Part 4.Seat systems for use in motor vehicles;
--- Part 6.Simulated use and determination of changes in seat cushion performance;
--- Part 9.Guidelines for seat interface pressure distribution;
--- Part 10.Flame retardancy requirements and test methods for body support devices;
--- Part 11.Determination of perspiration dissipation characteristics of seat cushions;
--- Part 12.Testing of seat cushion wrapping and sinking characteristics using a double hemisphere loader;
--- Part 13.Determination of lateral stability of seat cushions;
--- Part 14.Concepts related to the control of external forces to maintain tissue integrity;
--- Part 15.Selection, placement and fixing of flexible body support devices in seats.
Part 1 and Part 14 are definitions of terms, Part 2, Part 3, Part 10 and Part 12 are wheelchair seat cushions.
Part 4 is for special purpose requirements, and Part 6, Part 11, and Part 13 are for seat performance test methods.
Part 9 provides assessment information and Part 15 is about flexible body support devices.
Wheelchair fires are rare, but they may occur due to the following reasons.
---The wheelchair is close to burning objects such as fire;
---Some electrical components on the wheelchair overheated;
---Exposure to sparks or flames (such as welding sparks, cigarettes or matches).
If such a fire occurs, occupants may be at particular risk of injury or even death due to their inability to exit the wheelchair.
A wheelchair generally consists of the following components.
a) Structural components (such as wheelchair frame, wheels, etc.), which are essential to a complete wheelchair;
b) Electrical components (such as motors, power supplies, controllers, etc.), which are essential for electric wheelchairs;
c) One-piece or two-piece tissue integrity maintenance devices (such as chair seat or backrest cushions), the main purpose of these components in clinical practice
It reduces the risk of skin damage and also has the function of controlling sitting posture;
d) Such as soft seats, soft backrests, armrests, foot supports, pelvic support (hip support belt), trunk support devices, body support devices
These components are fixed to the wheelchair or its seat system, and mainly serve to fix the body position of the wheelchair occupant.
Each of the above components has different combustion hazards and can cause harm to the wheelchair occupants.
Wheelchair manufacturers design and produce wheelchairs and their components that balance flame retardancy requirements and functional requirements. This document specifies the requirements for the above-mentioned components.
The purpose of this document is to provide a suitable choice among the standards based on the furniture flame retardancy standards.
It can reflect the use and purpose of the wheelchair and its accessories.
Flame retardancy standards for structural components[a)] have not yet been developed.
The flame retardancy requirements for electrical components [b)] fall within the scope of ISO 7176-14, which specifies the requirements for preventing possible flame retardancy due to overheating of electrical components.
Fire related requirements.
Tissue integrity devices [see c) above] and postural support devices [see d) above] are within the scope of this document.
Heat output varies, and the heat output of different cigarettes varies even more, so using a smoldering cigarette as a standard heat source is not necessarily a reproducible heat source.
Since the early introduction of furniture combustion standards, with the continuous development of filter cigarettes and fire-resistant cigarettes, the original furniture combustion standards are no longer used.
This document is intended to describe a reproducible, equivalent heat source to the standard heat used in the original flame retardancy standard.
The output is comparable and can be scaled to be equivalent to other heat sources.
The standard is set at a basic minimum level and is less stringent than the current requirements in some countries.
Flammability as a minimum risk of hazard and the potential health effects of flame retardants, it is strongly recommended that this document be used as a reference for all products that come into contact with the human body.
Cancel the requirements of the furniture standard and GB /Z 18029.16-2021 for the flame retardancy of textile materials/soft parts of wheelchair seats that are exposed to flame retardancy.
Strict flame retardancy allows the use of more clinically suitable textiles to ensure the health and comfort of wheelchair users.
A better approach is to use materials that minimize the risk of releasing toxic substances due to combustion and do not cause harm to wheelchair users.
This is a significant shift in the focus on materials used to minimize the use of toxic and hazardous flammable chemicals.
This is because the seat system material has the least impact on fire severity. The selected materials meet the biocompatibility requirements and risk of ISO 10993-1
This includes guidance on the management of surface equipment that comes into contact with the skin, including consideration of cytotoxicity,
Sensitivity and irritation assessment.
Long-term repeated use of wheelchairs, such as repeated loading and unloading, cleaning, etc., will affect the flame retardant properties of the materials.
These effects are usually taken into account when materials are used so that the effects on normal use are minimized. However, although this document may be used for
Component materials, but it is stipulated that the test samples should be new or unused component materials.
Often, wheelchairs are used in different environments that can affect the flammability of materials. For example, home oxygen concentrators or those transported in non-flammable media
Medicines, etc. may turn inert materials into combustible materials. Dust and other materials accumulated in wheelchairs have also been found to be combustible materials.
Wheelchair manufacturers and passengers should be aware of these risks and follow the provisions of ISO 14971 when designing and using wheelchairs.
Wheelchair seats - Part 10.Body support devices
Flame retardancy requirements and test methods
1 Scope
This document specifies the use of a heat source equivalent to that of a burning cigarette to evaluate the performance of integral or separate parts of a wheelchair intended to protect tissue integrity.
Electronic ignition can also simulate other potential environmental fire hazards.
This document only tests the flame retardancy of the sample being tested, not the flame retardancy of the entire wheelchair. This document provides guidance on flame retardancy, but cannot
Ensure the flame retardancy of the entire wheelchair after assembly.
This document does not apply to the flame retardancy of wheelchair structural components. This document does not cover the flame retardancy of wheelchair structural components caused by the use or regular cleaning of postural support devices.
Flame retardancy changes.
This document does not apply to the control of risks arising from electrical or electronic components.
This document allows for the individual designation of wheelchair components that are normally used in a horizontal plane (e.g. seat cushion) and components that are normally used in a vertical plane (e.g. backrest).
Test alone.
This document describes the testing of disassembled, composite assembled components.
The results of this document do not give any indication of the flame retardancy of any individual material of the test specimens.
NOTE. This document is intended primarily to address parts that come into contact with the human body (e.g. seat cushions, which are used to position or protect skin tissue to avoid pressure, shear forces and immersion).
related injuries) and textile, foam and plastic based body support devices.
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/T 18029.26-2014 Wheelchairs Part 26.Terminology (ISO 7176-26.2007, IDT)
ting-Specifications)
ISO 7176-15 Wheelchairs - Part 15.Requirements for information release, documentation and marking
Note. GB/T 18029.15-2008 Wheelchairs Part 15.Requirements for information release, documentation and marking (ISO 7176-15.1996, IDT).
ISO 8191-1.1987 Furniture - Assessment of the flammability of upholstered furniture - Part 1.Ignition source. Smoldering cigarette
Note. GB 17927.1-2011 Upholstered furniture - Mattresses and sofas - Evaluation of resistance to ignition - Part 1.Smoldering cigarette (ISO 8191-1.1987,
NEQ)
Note. GB/T 42062-2022 Application of Medical Device Risk Management to Medical Devices (ISO 14971.2019, IDT)
3 Terms and Definitions
For the purposes of this document, the terms and definitions defined in GB/T 18029.26-2014 and ISO 8191-1.1987 and the following apply.
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