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GB/T 30661.6-2022 English PDF

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GB/T 30661.6-2022: Wheelchair seating - Part 6: Simulated use and determination of the changes in properties of seat cushions
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GB/T 30661.6-2022English629 Add to Cart 5 days [Need to translate] Wheelchair seating - Part 6: Simulated use and determination of the changes in properties of seat cushions Valid GB/T 30661.6-2022

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Basic data

Standard ID GB/T 30661.6-2022 (GB/T30661.6-2022)
Description (Translated English) Wheelchair seating - Part 6: Simulated use and determination of the changes in properties of seat cushions
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y14
Classification of International Standard 11.180.10
Word Count Estimation 34,357
Date of Issue 2022-10-14
Date of Implementation 2023-02-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 30661.6-2022: Wheelchair seating - Part 6: Simulated use and determination of the changes in properties of seat cushions


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Wheelchair seating -- Part 6.Simulated use and determination of the changes in properties of seat cushions ICS 11.180.10 CCSY14 National Standards of People's Republic of China Wheelchair car seats part 6.simulated use and Determination of changes in seat cushion performance (ISO 16840-6.2015, MOD) Published on 2022-10-12 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Foreword V Introduction VI 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Abbreviations5 5 Seat Cushion Characteristics and Burn-In Test Device 5 5.1 Apparatus for seat cushion feature testing 5 5.2 Seat Cushion Aging Device 6 6 Test Environment 7 7 Preparation and setting of the seat cushion 7 8 Selection and order of tests 7 9 Body fit8 9.1 Fundamentals 8 9.2 Test method and test report 8 10 Element Buckling 8 10.1 Fundamentals 8 10.2 Test methods 9 10.3 Calculation method 9 10.4 Inspection report 9 11 Heat and humidity test 9 11.1 Fundamentals 9 11.2 Test methods 9 11.3 Calculation method 10 11.4 Inspection report 10 12 Heated indenter compression set 10 12.1 Fundamentals 10 12.2 Test methods 11 12.3 Calculation method 11 12.4 Inspection report 11 13 Shock damping under normal conditions 11 13.1 Fundamentals 11 13.2 Test methods 11 14 Interface pressure measurement (pressure distribution) 11 14.1 Fundamentals 11 14.2 Test methods 11 14.3 Calculation method 12 14.4 Inspection report 12 15 Lateral stiffness 13 15.1 Fundamentals 13 15.2 Test methods 13 15.3 Calculation methods 13 15.4 Inspection report 13 16 Leak 13 16.1 Fundamentals 13 16.2 Test methods 13 16.3 Inspection report 14 17 Conformal Surface Loading Depth and Overload Deflection 14 17.1 Fundamentals 14 17.2 Test methods 14 17.3 Calculation method and inspection report 14 18 Hysteresis test 14 18.1 Fundamentals 14 18.2 Test methods and inspection reports 14 19 Sliding resistance 15 19.1 Fundamentals 15 19.2 Test Methods 15 19.3 Calculation methods 15 19.4 Inspection report 15 20 Deformation at 10% force 15 20.1 Fundamentals 15 20.2 Test methods 15 20.3 Calculation method 15 21 Phase 2.Simulated Aging Test 16 22 Accelerated aging 16 22.1 Fundamentals 16 22.2 Test Methods 16 22.3 Inspection methods 17 22.4 Inspection report 17 23 Bacterial contamination 17 23.1 Fundamentals 17 23.2 Test Methods 17 23.3 Inspection methods 18 23.4 Inspection report 18 24 Low temperature exposure 18 24.1 Fundamentals 18 24.2 Test Methods 19 24.3 Inspection methods 19 24.4 Inspection report 19 25 Cyclic loading test at high temperature 19 25.1 Fundamentals 19 25.2 Test Methods 19 25.3 Inspection methods 19 25.4 Inspection report 20 26 Disinfection 20 26.1 Fundamentals 20 26.2 Test methods 20 27 Cyclic loading of excreta corrosion 20 27.1 Fundamentals 20 27.2 Test methods 20 27.3 Inspection methods 21 27.4 Inspection report 21 28 Heat and humidity test (second stage) 21 28.1 Fundamentals 21 28.2 Test methods 21 28.3 Inspection methods 21 28.4 Inspection report 21 29 Washing 21 29.1 Fundamentals 21 29.2 Test methods 21 29.3 Inspection methods 22 29.4 Inspection report 22 30 Cyclic loading of urine corrosion 22 30.1 Fundamentals 22 30.2 Test methods 22 30.3 Inspection methods 22 30.4 Inspection report 23 31 Ultraviolet (UV) and Ozone Exposure 23 31.1 Fundamentals 23 31.2 Test methods 23 31.3 Inspection methods 23 31.4 Inspection report 23 32 Stage 3.Ageing After Seat Cushion Test 24 33 Calculation method 24 34 Inspection report 24 Appendix A (Informative) Reasons Affecting Changes in Seat Cushion Performance 25 Reference 26

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is part 6 of GB/T 30661 "Wheelchair Vehicle Seats". GB/T 30661 has released the following parts. --- Part 1.Vocabulary, datum axis rules and measurements of body parts, postures and posture support surfaces; --- Part 2.Physical and mechanical properties of the device for maintaining tissue integrity - Determination of seat cushions; --- Part 3.Determination of static, impact and fatigue strength of postural support devices; --- Part 4.Seating systems used in motor vehicles; --- Part 6.Determination of simulated use and changes in cushion performance. This document is modified to adopt ISO 16840-6.2015 "Wheelchair seats - Part 6.Simulated use and determination of changes in seat cushion performance". The technical differences between this document and ISO 16840-6.2015 and their reasons are as follows. --- In Chapter 2, the normative reference document adds a reference to ISO 16840-12 (see 9.2), using ANSI/RESNASS-1.2019 Section3 replaces RESNASS-1.2011Section3 (see 5.1.2, 11.2) to suit industry needs; --- Changed the requirements for heat and humidity test device in 5.1.2 to "This system should be consistent with the provisions of ANSI/RESNASS-1.2019Section3 same" to suit industry needs; --- Deleted the provisions of testing in accordance with ISO 16840-7 in 11.2, and changed it to "according to ANSI/RESNASS-1.2019 The methods specified in Section 3 are tested" to suit industry needs. The following editorial changes have been made to this document. --- Increased the unit "CFU/mL" of the total number of colonies (see 23.2.1). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the Ministry of Civil Affairs of the People's Republic of China. This document is under the jurisdiction of the National Technical Committee on Standardization of Rehabilitation and Special Equipment for Persons with Disabilities (SAC/TC148). This document is drafted by. National Rehabilitation Aids Research Center, National Rehabilitation Aids Research Center Rehabilitation Aids Quality Supervision and Inspection Center, Shanghai Haihubang Intelligent Rehabilitation Equipment Co., Ltd., Foshan Intellectual Property Protection Promotion Association, Foshan Dongfang Medical Equipment Factory Co., Ltd. The main drafters of this document. Gu Huiru, Zhang Weikang, Zhong Shusen, Zhao Cishun, Lan Runguang, Wu Ruiping.

Introduction

The seat cushion of the wheelchair can improve the support state of the user and avoid injury, so it can be used for the disabled of various degrees in different ways. request to use. The use of a wheelchair seat cushion depends on its ability to cope with various situations, such as intermittent use, high-intensity exercise use or size Use by incontinent persons. Each different usage condition changes the performance of the seat cushion and puts the user at potential risk of affecting the seat cushion See Appendix A for the reasons for the change in performance. It is therefore crucial to assess the criteria for using wheelchair seat cushions under different conditions. This document describes a method for determining changes in the physical and mechanical properties of a seat cushion based on its age and use. Tests given in this document Methods are not fully applicable to all seat cushions, therefore, manufacturers need to determine which test methods are applicable to the construction and use of their products. This article Pieces are intended to provide an approximation of conditions that change over time. This document covers performance testing of new seat cushions, After the mat is aged, the performance test is carried out, and the report of the change is given at last. Before the implementation of this document, the manufacturer gives the use environment, failure mode and performance test of its product suitable for its seat cushion. not all test Tests are suitable for all seat cushions, and some tests may be modified or even cancelled based on material suitability, construction or conditions of use. if yes Cyclic loads add a rotational component to create additional wear. The failure mode of seat cushions of some materials will depend on the temperature at a temperature of 70 °C. However, in this case, it may be necessary to select a temperature of 50°C to age the seat cushion for a longer period of time to simulate aging failure. All changes should be described in the published documentation. These tests are not intended to rank or score seat cushions or to configure them to individual user requirements. conclusion of these tests The results help clinicians provide care to patients by using their professional judgment to select the surface characteristics of the seat cushion, and also assist in patient care, treatment, and treatment. treatment or rehabilitation. The association of seat cushions with clinical outcomes, although present, has not been validated. Once the clinical relationship is confirmed, this document will have new develop. Subsequent parts of GB/T 30661 will describe other qualitative test methods for surface characteristics, which may improve the care and treatment of patients. One step to help clinicians. Over the past few decades, wheelchair seats have continued to evolve as a subspecialty of rehabilitation services. this kind of research Involves wheelchair seat product selection, production, and service supply, so as to provide wheelchair users with better body support, motion control, and predictability. Injury prevention. GB/T 30661 is intended to consist of 11 parts. --- Part 1.Vocabulary, datum axis rules and measurements of body parts, postures and posture support surfaces; --- Part 2.Physical and mechanical properties of the device for maintaining tissue integrity - Determination of seat cushions; --- Part 3.Determination of static, impact and fatigue strength of postural support devices; --- Part 4.Seating systems used in motor vehicles; --- Part 6.Determination of simulated use and changes in seat performance; --- Part 9.Guidelines for the clinical interface pressure distribution of seat cushions; --- Part 10.Requirements and test methods for the flame retardancy of postural support devices; --- Part 11.Seat cushion perspiration performance test for maintaining tissue integrity; --- Part 12.Description of the envelope and trapping characteristics of seat cushions tested using a double hemispherical loading body; --- Part 13.Determination of the lateral stability of seat cushions; --- Part 15.Selection, placement and fixation of flexible postural support devices in seats. Wheelchair car seats part 6.simulated use and Determination of changes in seat cushion performance

1 Scope

This document gives test setups, test methods and information releases for the effects of aging in seat cushions to reproduce the aging seen in use In addition, a method to determine the changes in physical and mechanical properties of the seat cushion according to its age and use and a set of tests to simulate wear are also given. Abrasion tests can be used to verify warranty claims and provide information about the product, age, performance limitations.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. ISO /IEC Guide 98-3 Uncertainty of Measurement Part 3.Guidelines for the Expression of Uncertainty of Measurement [Uncertaintyof ting-Specifications) ISO 4892-3 Test methods for light sources in plastics laboratories - Part 3.UV fluorescent lamps (Plastics-Methodsofex- ISO 9073-8 Test methods for textile nonwovens - Part 8.Determination of liquid penetration time (simulated urine) laterurine)] Note. GB/T 24218.8-2010 Test methods for textiles and nonwovens - Part 8.Determination of liquid penetration time (simulated urine) (ISO 9073-8. 1995, MOD) ISO 16840-2 Wheelchair seats - Part 2.Determination of physical and mechanical properties of devices for maintaining tissue integrity Seat cushions Note. GB/T 30661.2-2014 Wheelchair Seat Part 2.Determination of Physical and Mechanical Properties of Devices for Maintaining Tissue Integrity Seat Cushion (ISO 16840-2.2007, IDT) ISO 16840-12 Wheelchair vehicle seats - Part 12.Seat cushion envelope and entrapment characteristics description using a double hemispherical loading test AAMITIR12 Designing, Testing, and Labeling Reusable Medical Devices for Medical Device Reprocessing. A Guide for Medical Device Manufacturers (De- ANSI/RESNASS-1.2019Section3 Standard Practice for Measuring Human Surface Temperature and Water Vapor Loss Characteristics Human Body Model face-Bodyanalogmethod)

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