Search result: GB/T 18948-2017 (GB/T 18948-2009 Older version)
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| GB/T 18948-2017 | English | 359 |
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Rubber hoses and tubing for cooling systems for internal-combustion engines -- Specification
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GB/T 18948-2017
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| GB/T 18948-2009 | English | 599 |
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Rubber hoses and tubing for cooling systems for internal-combustion engines -- Specification
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GB/T 18948-2009
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| GB/T 18948-2003 | English | 399 |
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Rubber - Coolant hoses and tubing for use on private cars and light commercial vehicles - Specification
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GB/T 18948-2003
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| Standard ID | GB/T 18948-2017 (GB/T18948-2017) | | Description (Translated English) | Rubber hoses and tubing for cooling systems for internal-combustion engines -- Specification | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G42 | | Classification of International Standard | 43.040.01; 83.140.40 | | Word Count Estimation | 18,180 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2018-04-01 | | Older Standard (superseded by this standard) | GB/T 18948-2009 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee |
GB/T 18948-2017
Rubber hoses and tubing for cooling systems for internal-combustion engines - Specification
ICS 43.040.01; 83.140.40
G42
National Standards of People's Republic of China
Replacing GB/T 18948-2009
Internal combustion engine cooling system with rubber hose and pure rubber hose
specification
Specification
(ISO 4081.2010, IDT)
2017-09-07 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 range 1
2 Normative references 1
3 Categories 2
4 Size and tolerance 2
5 rubber hose and pure rubber hose performance requirements 2
6 test frequency 4
7 mark 4
Appendix A (Normative) Expansion test 6
Appendix B (Normative) Resistance to surface contamination of oil 7
Appendix C (Normative) Pressure, vibration and temperature test 8
Appendix D (informative) original equipment manufacturers (OEMs) The use of matrix diagram provides non-standard type of hose or pure hose
Example 10
Appendix E (Normative) Type test 11
Appendix F (Normative) Routine test 12
Appendix G (informative) Production Acceptance Test 13
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 18948-2009 "Internal combustion engine cooling system hose and pure rubber hose specifications." And GB/T 18948-
2009 compared to the main technical changes are as follows.
--- Revised bond strength [see Chapter 5 b),.2009 version 5.2];
--- Increased resistance to suction flat diameter change formula [see Chapter 5 d)];
--- Increased resistance to expansion of the perimeter or diameter of the formula for calculating the rate [see Chapter 5 f)];
--- Increasing the pressure/vibration/temperature test burst pressure changes, changes in diameter calculation [see Chapter 5 l]);
--- Modify 5.1 ~ 5.12 for a) ~ l) [see Chapter 5 a) ~ l),.2009 version 5.1 ~ 5.12].
This standard uses the translation method identical with ISO 4081.2010 "internal combustion engine cooling system with rubber hose and pure hose specifications."
The documents of our country that are consistent with the corresponding international documents that are normative references in this standard are as follows.
--- GB/T 1690-2010 vulcanized or thermoplastic rubber liquid-resistant test methods (ISO 1817.2005, MOD)
--- GB/T 2941-2006 rubber physical test sample preparation and conditioning procedures (ISO 23529.2004, IDT)
--- GB/T 3512-2014 vulcanized rubber or thermoplastic rubber hot air accelerated aging and heat test (ISO 188.2011,
IDT)
--- GB/T 3730.2-1996 road vehicles quality vocabulary and code (idtISO 1176.1990)
--- GB/T 5563-2013 Rubber and plastics hoses and hose assemblies - Hydrostatic test method (ISO 1402.2009, IDT)
--- GB/T 5565-2006 Rubber or Plastics Reinforced Hose and Non-Reinforced Hose Bending Test (ISO 1746.1998, IDT)
--- GB/T 5567-2013 Rubber and plastics hoses and hose assemblies Determination of vacuum resistance (ISO 7233.2006,
IDT)
--- GB/T 5576-1997 Rubber and latex nomenclature (idtISO 1629.1995)
--- Rubber and plastics hoses and hose specifications and the maximum and minimum diameter and cutting length tolerance (ISO 1307) --- GB/T 9575-2013.
2006, IDT)
--- GB/T 14905-2009 Rubber and plastics hoses - Determination of adhesive strength between layers (ISO 8033.2006, IDT)
This standard made the following editorial changes.
--- Delete the text "bar" units that only keep "MPa" unit said.
This standard proposed by the China Petroleum and Chemical Industry Federation.
This standard by the National Rubber and Rubber Products Standardization Technical Committee hose (SAC/TC35) centralized.
This standard was drafted unit. Nanjing Lide Orient Rubber Technology Co., Ltd., Tianjin Ge Tesi Testing Equipment Technology Development Co., Ltd., Shenyang
Rubber Research Institute Co., Ltd.
The main drafters of this standard. Sun Kejian, Cai Zhixiong, Wang Shuli, Xu Xing, Zhou Feng.
This standard replaces the standards previously issued as.
--- GB/T 18948-2003, GB/T 18948-2009.
Internal combustion engine cooling system with rubber hose and pure rubber hose
specification
Warning --- personnel using this standard should be familiar with regular laboratory procedures. This standard is not intended to involve the use of this standard may arise
All security issues. It is the user's responsibility to establish a corresponding safety and health system and to ensure compliance with national regulations.
1 Scope
This standard specifies the self-contained vehicles containing 3.5t or less internal combustion engine (see the provisions of ISO 1176) with 1,2-ethanediol as a coolant
Requirements for direct or pre-formed hoses or pure hoses for pressurized or pressure-fed cold circulation systems. This standard can be used as a classification method to make the original equipment
The manufacturer (OEM) may make a detailed marking of the dedicated tests that do not include the specified major types (see Appendix D for examples). At this
In such cases, the hose or pure rubber hose does not have any indication of the standard number of the mark, but according to OEM parts drawings detailed identification
Do not mark.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 5564-2006 rubber and plastic hose low temperature deflection test (ISO 4672.1997, IDT)
GB/T 24134-2009 Rubber and plastic hoses - Evaluation of resistance to ozone under static conditions (ISO 7326.2006, IDT)
ISO 188 Vulcanized rubber or thermoplastic rubber - accelerated aging or heat resistance test (Rubber, vulcanizedorthermoplastic-
Acceleratedageingandheatresistancetests)
ISO 1176 Road Vehicles Quality Glossary and Codes (Roadvehicles-Masses-Vocabulary and codes)
ISO 1307 Rubber and Plastic Hose Hose Specifications and Maximum and Minimum Inner Diameter and Cut Length Tolerances (Rubberandplasticsho-
ses-Hosesizes, minimumandmaximuminsidediameters, andtolerancesoncut-to-lengthhoses)
ISO 1402 Rubber and plastics hoses and hose assemblies - Hydrostatic test method (Rubberandplasticshosesandhose
assemblies-Hydrostatictesting)
ISO 1629 Rubber and latex nomenclature (Rubberandlatices-Nomenclature)
ISO 1746 Rubber or Plastics Reinforced Hoses and Non-Reinforced Hose Bending Tests (Rubberorplasticshosesandtubing-
Bendingtests)
ISO 1817 vulcanized or thermoplastic rubber liquid-resistant test methods (Rubber, vulcanized-Determinationofthe
effectofliquids)
ISO 6162-1 Hydraulic fluid transmission belts - Split or integral flanges and flanged fittings for metric or inch bolts - Part 1.
For 3.5MPa to 35MPa pressure, DN13 to DN127 flange fittings (Hydraulicfluidpower-Flangecon-
nectorswithsplitorone-pieceflangeclampsandmetricorinchscrews-Part 1.Flangeconnectorsfor
useatpressuresof3.5MPato35MPa, DN13toDN127)
ISO 7233 Rubber and plastics hoses and hose assemblies - Determination of vacuum resistance (Rubberandplasticshosesand
hoseassemblies-Determinationofresistancetovacuum)
ISO 8033 Rubber and plastics hoses - Determination of adhesive strength between layers (Rubberandplasticshoses-Determination
ofadhesionbetweencomponents
......
GB/T 18948-2009
Rubber hoses and tubing for cooling systems for internal-combustion engines.Specification
ICS 43.040.01; 83.140.40
G42
National Standards of People's Republic of China
GB/T 18948-2009/ISO 4081.2005
Replacing GB/T 18948-2003
Engine cooling systems Rubber hoses and tubing -
specification
(ISO 4081.2005, IDT)
Posted 2009-06-15
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is identical with ISO 4081.2005 "engine cooling systems Rubber hoses and tubing - Specification" (in English).
This standard is equivalent translation ISO 4081.2005.
Chapter 2 of this standard reference GB/T 1690-2006 is to modify the use of international standards ISO 1817.2005, covered by this standard
No. 3 oil standards in line with international standards.
For ease of use, this standard made the following editorial changes.
a) "this International Standard" be replaced by "this standard";
b) use a decimal point instead of a decimal comma ",". ",";
c) Remove the preface to international standards;
d) The standard Chapter 5 with serial number "5.1, 5.2" instead of "a), b)".
This standard replaces GB/T 18948-2003 "cars and light commercial vehicles cooling system with pure rubber hose and hose."
This standard and GB/T 18948-2003 main changes are as follows.
--- To modify the standard name;
--- Hose types were redefined from the original three typed to now four types, using the international standard classification
form;
--- Deletion of the GB/T 18948-2003 standard in Chapter 4 of the inner wall of cleanliness;
--- Deletion of the GB/T 18948-2003 standard 5.1 hardness Chapter 5, 5.2 tensile strength and elongation at break, 5.3 hot air
Changes aging gas properties, compression set 5.4, 5.5 resistance to coolant performance and content 5.6 No. 3 oil resistance properties;
--- Deletion of the GB/T 18948-2003 standard mechanical fatigue testing in Appendix A and Appendix B of the low-temperature bending test (-40 ℃)
And the content of Appendix C;
--- The GB/T 18948-2003 standard in Chapter 5, low-temperature compression of 5.11 to 5.10 of the standard compression set;
--- The GB/T 18948-2003 standard in Chapter 5 of the mechanical fatigue strength of 5.13 to 5.12 of the standard pressure/vibration/temperature
test;
--- Increased resistance to expansion (5.6), resistant to electrochemical degradation (5.7), surface contamination of heat aging resistance (5.9) and resistance to lubricants
(5.11) content;
--- Increase the frequency of testing (Chapter 6) content;
--- Increased normative appendix (Appendix A, Appendix B, Appendix C, Appendix E, Appendix F) and information appendix (Appendix D, Annex G)
content.
The Standard Appendix A, Appendix B, Appendix C, Appendix E, Appendix F is a normative appendix, Appendix D, Appendix G is informative appendix.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Rubber and rubber products hose Standardization Technical Committee Technical Committee (SAC/TC35/SC1) centralized.
This standard was drafted. Sichuan Chuan, Central Technology Co., Ltd., Sichuan Province special rubber products, automotive engineering and technology research center.
Drafters of this standard. Wenyong.
This standard replaces the standards previously issued as follows.
--- GB/T 18948-2003.
GB/T 18948-2009/ISO 4081.2005
Engine cooling systems Rubber hoses and tubing -
specification
Warning. Use of this standard should be familiar with normal laboratory practice. This standard does not purport relates to the use of this standard may occur
All security issues. Develop appropriate safety and health system, and to ensure compliance with national regulations is the responsibility of the user.
1 Scope
The standard provides for the following vehicle weight 3.5t containing an internal combustion engine (see the provisions of GB/T 3730.2 in) to ethylene glycol cooling
Pressurized cooling agent circulatory system or relief straight or preformed hose or hose pure. This standard is used as a method of classification, so that the original equipment manufacturing
Manufacturer (OEM) may not include a special test prescribed mainly typed in detail within the label (see example in Appendix D). In this
Identify the case, the hose or hose does not contain any pure shows the standard number of marks, and shall design OEM parts detailed labeling
mark.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1690-2006 vulcanized rubber or thermoplastic rubber of resistance to liquids - Test methods (ISO 1817.2005, MOD)
GB/T 2941 rubber physical test method for preparing and conditioning General Procedure (GB/T 2941-2006, ISO 23529.2004,
IDT)
GB/T 3730.2 mass road vehicles - Vocabulary and codes (GB/T 3730.2-1996, idt ISO 1176.1990)
GB/T 5563 Rubber and plastics hoses and hose assemblies - Hydrostatic testing method (GB/T 5563-2006, ISO 1402.
1994, IDT)
GB/T 5564-2006 Rubber and plastic hoses low flexing test (ISO 4672.1997, IDT)
GB/T 5565 rubber or plastic tubing and hose bending test non-enhanced (GB/T 5565-2006, ISO 1746.1998,
IDT)
GB/T 5567 Rubber and plastics hoses and hose assemblies - Determination of resistance to suction flat performance (GB/T 5567-2006, ISO 7233.
1991, IDT)
GB/T 5576 rubber and latex nomenclature (GB/T 5576-1997, idt ISO 1629.1995)
GB/T 9575 General Industrial Rubber and plastics hose diameters and tolerances, and tolerances on length (GB/T 9575-2003,
ISO 1307.1992, IDT)
Determination of GB/T 14905 Rubber and plastic hoses adhesion strength between layers (GB/T 14905-2009, ISO 8033.2006,
IDT)
GB/T 24134-2009 Evaluation of ozone resistance properties of rubber and plastic hoses under static conditions (ISO 7326.2006, IDT)
ISO 1881) vulcanized rubber or thermoplastic rubber heating and heat aging test
1) and ISO 188.1998 corresponding to the national standard GB/T 3512-2001.
ISO 6162-1 Hydraulic with remote or integral flanges and metric or inch bolt flanged fittings - Part 1.
Under pressure to 3.5MPa to 35MPa, DN13 to DN127 flanged fittings
SAEJ20.2004 cooling system hoses
SAEJ1638 hose or solid disk compression set
SAEJ1684.2000 Test methods for evaluation of the cooling system hoses and electrochemical properties of the material
GB/T 18948-2009/ISO 4081.2005
......
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