GB/T 7036.1-2023 PDF in English
GB/T 7036.1-2023 (GB/T7036.1-2023, GBT 7036.1-2023, GBT7036.1-2023)
Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
GB/T 7036.1-2023 | English | 215 |
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Inner tube for pneumatic tyres -- Part 1: Inner tubes for motor vehicle tyres
| Valid |
GB 7036.1-2009 | English | 85 |
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[GB/T 7036.1-2009] Inner tube of pneumatic tyres -- Part 1: Inner tube of motor vehicle tyres
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GB 7036.1-1997 | English | 185 |
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Inner tube of pneumatic tyres--Part 1: Inner tube of automobile tyres
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GB 7036-1989 | English | RFQ |
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Inner tube of pneumatic tyres
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Standards related to (historical): GB/T 7036.1-2023
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GB/T 7036.1-2023: PDF in English (GBT 7036.1-2023) GB/T 7036.1-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.160.10
CCS G 41
Replacing GB/T 7036.1-2009
Inner Tube for Pneumatic Tyres - Part 1: Inner Tubes for
Motor Vehicle Tyres
(ISO 17464:2016, Pneumatic tubes for automotive vehicles - Technical requirements
and test methods, MOD)
ISSUED ON: DECEMBER 28, 2023
IMPLEMENTED ON: JULY 1, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 6
4 Categories of Materials ... 6
5 Requirements ... 6
6 Test Methods ... 8
7 Product Marking ... 9
8 Transportation ... 9
9 Storage ... 9
Appendix A (informative) Comparison of Chapter No. between This Document and
ISO 17464:2016 ... 10
Appendix B (informative) Technical Differences between This Document and ISO
17464:2016, and Their Causes ... 11
Inner Tube for Pneumatic Tyres - Part 1: Inner Tubes for
Motor Vehicle Tyres
1 Scope
This document specifies the requirements, test methods, product marking, transportation and
storage of the inner tubes for passenger car tyres and truck tyres.
This document is applicable to inner tubes for passenger car tyres and truck tyres. For the inner
tubes for engineering machinery tyres, agricultural tyres and industrial vehicle tyres, this
document may be taken as a reference.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 519 Test Methods for Measuring Physical Properties of Pneumatic Tyres
GB/T 1796 (all parts) Tyre Valves
GB/T 6326 Tyre Terms and Definitions
GB/T 9768 Rules for Application and Maintenance of Tyres
3 Terms and Definitions
The terms and definitions defined in GB/T 6326 are applicable to this document.
4 Categories of Materials
In accordance with the materials commonly used in inner tube manufacturing, they are divided
into Category A and Category Type B. Natural rubber or a combination of natural rubber is
Category A, and butyl rubber or a combination of butyl rubber is Category B.
5 Requirements
5.1 Thickness
The inner tubes shall not have scars, cracks, bubbles, sponginess, impurities and other
appearance defects that may affect the use.
6 Test Methods
6.1 Thickness and Physical and Mechanical Properties
Single-layer thickness, tensile strength, tensile strength change rate after aging, elongation at
break, thermal tensile deformation, joint strength, adhesion between rubber cushion valve and
tyre body, bonding strength between valve (with a base) and rubber cushion and adhesion
between valve (without a base) and rubber cushion shall be tested in accordance with the
stipulations of GB/T 519.
6.2 Air Tightness Performance
6.2.1 Inflatable parking test
Inflate the inner tube, until the cross-section circumference of the inner tube at the same position
reaches 110% ~ 120% of the double flat-fold cross-section width of the inner tube. Stop
inflating, tighten the valve core, and park for at least 24 hours. Then, measure the cross-section
circumference of the inner tube. If the cross-section circumference value of the inner tube at
the same position decreases by no more than 1%, it shall be deemed to have passed the test.
Otherwise, the valve core shall be replaced, and the test shall be performed again. If the cross-
section circumference value decreases by more than 1% again, then, the inner tube shall be
deemed to have failed the test.
6.2.2 Water tank test
6.2.2.1 Inflate the inner tube. When the cross-section circumference of the inner tube at the
same position is 110% ~ 120% of the double flat-fold cross-section width of the inner tube, stop
inflating and tighten the valve core.
6.2.2.2 Put the inner tube into the water tank, so that the inner tube is completely immersed in
the water (the water should not be too deep). After the water stabilizes, start to observe whether
there are bubbles escaping from each part of the inner tube. If no bubbles escape within 1
minute, the inner tube shall be deemed to have passed the test.
6.2.2.3 If there are bubbles escaping from the valve core, the valve core shall be replaced, and
the test shall be performed again. If no bubbles escape within 2 minutes, the inner tube shall
still be deemed to have passed the test. If bubbles escape from other parts of the inner tube, the
inner tube shall be removed and inspected, and the test can be performed again. If no bubbles
escape within 1 minute, the inner tube shall be deemed to have passed the test. Otherwise, it
shall be deemed to have failed the test.
6.2.2.4 If it is difficult for large-sized inner tubes to be completely immersed in water, they can
be immersed in water in sections for the test.
7 Product Marking
7.1 Each inner tube shall be clearly marked as follows:
a) Specifications;
b) Trademark or manufacturer’s name;
c) Production date, at least the year and month of production can be identified;
d) Inspection mark.
Among them, items a), b) and c) are permanent marks, while item d) is a mark that cannot be
washed away.
7.2 Category B inner tubes shall be marked with “BUTYL” or a blue line with a width of not
less than 2 mm on the circumference.
8 Transportation
8.1 During transportation, any mechanical damage shall be prevented.
8.2 During transportation, the product shall be protected from direct exposure to the sun, rain
and snow, and shall not come into contact with oil, grease, acid, alkali and other substances that
may damage the quality of the inner tube.
8.3 During loading, unloading and transshipment, care shall be taken to prevent damage to the
boxes and products under the pallets due to excessive height or weight.
9 Storage
9.1 Inner tubes sold as a whole with the outer tyres or shipped from the factory are stored
together with the outer tyres, and the storage requirements shall comply with the relevant
stipulations of GB/T 9768.
9.2 When stored in a room-temperature environment, it shall be more than 1 m away from heat
sources, there shall be no direct sunlight, and light sources that emit ultraviolet rays shall not
be used.
9.3 The storage room shall not contain any ozone-generating devices or flammable gases or
volatile organic compounds that may produce ozone through photochemical reactions.
9.4 During storage, the product shall not come into contact with oil, grease, acid, alkali and
other substances that may damage the quality of the inner tube.
9.5 During storage, biological hazards to the product shall be prevented.
...... Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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