GB/T 10357.6-2013 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 10357.6-2013 | English | 70 |
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Test of mechanical properties of furniture -- Part 6: Strength and durability of beds
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| GB/T 10357.6-1992 | English | 70 |
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Test of mechanical properties of furniture--Strength and durability of beds
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GB/T 10357.6-2013: Test of mechanical properties of furniture -- Part 6: Strength and durability of beds
---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/GBT10357.6-2013
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.140
Y 80
Replacing GB/T 10357.6-1992
Test of Mechanical Properties of Furniture -
Part 6.Strength and Durability of Beds
Issued on. OCTOBER 10, 2013
Implemented on. MAY 1, 2014
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 5
2 General Test Conditions... 5
3 Test Facilities... 6
4 Test Items and Procedures... 10
5 Evaluation of Test Results... 17
Foreword
"Test of Mechanical Properties of Furniture" (GB/T 10357) is divided into 8 parts.
- Part 1.Strength and Durability of Tables;
- Part 2.Stability of Chairs and Stools;
- Part 3.Strength and Durability of Chairs and Stools;
- Part 4.Stability of Storage Units;
- Part 5.Strength and Durability of Storage Units;
- Part 6.Strength and Durability of Beds;
- Part 7.Stability of Tables;
- Part 8.Stability of Chairs with Tilting or Reclining Mechanisms when Fully
Reclined, and Rocking Chairs.
This is Part 6 of GB/T 10357.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part supersedes "Test of Mechanical Properties of Furniture - Strength and
Durability of Beds" (GB/T 10357.6-1992).
Compared with GB/T 10357.6-1992, the main technical changes in this part are as
follows.
- Pretreatment is added;
- Loading requirements are added;
- Precision is added;
- Test equipment requirements are added;
- Test procedures are added;
- Size of loading pad of horizontal static load for bed end structure is modified.
Attention shall be drawn to the possibility that some of the elements of this document
may involve patent rights. The issuance organization of this document shall not
undertake the responsibility of identifying these patents.
This part is proposed by China National Light Industry Council.
This part is under the jurisdiction of National Technical Committee on Furniture of
Standardization Administration of China (SAC/TC 480).
Drafting organizations of this part. Guangdong Landbond Furniture Group Co., Ltd.,
Shanghai Institute of Quality Inspection and Technical Research (China National
Furniture Quality Supervision Testing Center), Hunan Stardom Home Furnishing
Development Co., Ltd. and Zhejiang Furniture and Hardware Research Institute.
Chief drafting staff of this part. Wang Jin, Zhou Shanlin, Zhang Yinghong, Chen
Huaxiang, Gu Ming, Zhang Rong, Tu Zhong, Fan Hongwei, Xu Jianmin and Xiao
Qixin.
The previous edition of the standard superseded by this part is as follows.
- GB/T 10357.6-1992.
Test of Mechanical Properties of Furniture -
Part 6.Strength and Durability of Beds
1 Scope
This part of GB/T 10357 specifies test methods for the strength and durability of beds.
This part is applicable to various hard-surface beds used in households and hotels.
Beds of other types may also be implemented by reference to this part according to
their use functions.
2 General Test Conditions
2.1 Specimen
Specimen shall be completely assembled deliverable finished product. Assembling
shall be carried out according to the instructions provided along with the product by
the manufacturer. Where there are several assembly methods, it shall be assembled
and tested with the method which is most unfavorable to the mechanical property
inspection and recorded in the inspection report. Where assembling structure is not
provided, the assembly method shall be recorded in the inspection report. The
connecting piece shall be fastened before the test. Unless specially requested in the
manufacturer's instructions, the connecting piece shall not be refastened during the
test.
2.2 Test environment
Unless otherwise specified, the temperature of test environment is 15~25℃ while the
relative humidity is 40%~70%.
2.3 Loading requirements
During static load test, the force application speed shall be as slow as possible to
ensure that the additional dynamic load is small enough to be neglected. Unless
otherwise stated in the contract, each applied load shall be maintained for 10~30s.
During impact test, the impact body shall be able to fall freely.
2.4 Precision
Unless otherwise specified, the following measuring precisions shall be adopted.
3 Test Facilities
3.1 General requirements for test device
Unless otherwise specified, any appropriate test device may be adopted for the test;
the reason is that the test result only depends on whether the applied force is correct
rather than the device itself.
3.2 Loading pad
3.2.1 50mm loading pad
A rigid cylinder with diameter of 50mm, its bottom surface is flat and smooth, and its
edge chamfer radius is 12mm (see Figure 1).
3.2.2 200mm loading pad
A flat and square rigid object with side length of 200mm×200mm, its bottom surface is
flat and smooth, and its chamfer radius of edge and lateral edge of bottom surface is
12mm (see Figure 2).
3.2.5 Impactor
The impactor is composed of cylinder, helical compression spring and impact head.
A compression spring is arranged between cylinder and impact head; where they are
connected, the cylinder and impact head shall be able to move relatively along the
axis. The mass of cylinder and relevant accessories (except spring) fixed on the
cylinder is (17±0.1)kg; the mass of the whole impactor is (25±0.1)kg.
The overall elastic coefficient of impactor is (6.9±1)N/mm, and the total static friction
of the relatively movable part is 0.25~0.45N. The pre-compression of all helical
compression springs is (1040±5)N, and its recompression capacity shall be greater
than 60mm.
3.3 Chock block
A device used to prevent specimen from sliding but not restricting its tipping. Its height
shall not be greater than 12mm; where relatively high chock block is required by the
product design, the minimum height of chock block is restricted to avoid the specimen
movement.
3.4 Ground
The ground of test position shall be level, smooth and rigid.
4 Test Items and Procedures
4.1 Uniformly distributed static load test for bed base
Measure the ground clearance of the bed base center H10 and the bed breadth B
before test.
4.3 Horizontal static load test for bed end structure
4.4 Static load test for long side of bed
Measure the ground clearance of the long side midpoint of bed H30 before test. Where
the long side midpoint of bed is supported, measure the ground clearance of the
quartering point of the long side of bed. Trisect this long side; simultaneously vertically
and downward apply 1500N force to each trisection point which is 20mm away from
the edge for 10 times with 50mm loading pad, maintain each loading for 10s at least;
the time interval between two loadings is not greater than 30s (see Figure 10).
In mm
4.5 Structure durability test for bed
Block the bed ward off with chock block to avoid bed movement during test.
Arrange 1000N balancing load on the bed base center with 350mm loading pad.
Take two points, A and B, which are 50mm away from the same long side, from two
short sides of the bed base, and another two points, C and D, which are 50mm away
from the same short side, from two long sides of the bed base (4 loading points in
total). The height of loading point is the same with that of the bed base; where the bed
base is movable, the loading height is the same as that of the side rail.
4.6 Impact load test for bed base
The bed base shall be free from mattress and any covering. Respectively impact in
the center and weakest point of the bed base for 10 times with impact height of
140mm above the bed base (referring to the vertical distance from the bottom surface
of impactor to the tested bed base); the time interval between two impacts is not
greater than 30s.
Balancing load
5 Evaluation of Test Results
The test result is only valid for specimen; where the specimen is representative
among similar products, the test result may represent the product performance of
such type. Carry out inspection after each test and record all generated changes. The
specimen, during or after each test, shall meet the following requirements.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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