GB/T 26779-2021 PDF English
US$215.00 · In stock · Download in 9 secondsGB/T 26779-2021: Hydrogen fuel cell electric vehicle refueling receptacle Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 26779: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 26779-2021 | English | 215 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Hydrogen fuel cell electric vehicle refueling receptacle
| Valid |
| GB/T 26779-2011 | English | 70 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
[Including Amendment 2018XG1] Fuel cell electric vehicles -- Refueling receptacle
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 26779-2021
GB/T 26779-2021: Hydrogen fuel cell electric vehicle refueling receptacle---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/GBT26779-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.080.01
CCS T 47
Replacing GB/T 26779-2011
Hydrogen fuel cell electric vehicle refueling receptacle
Issued on. MARCH 09, 2021
Implemented on. OCTOBER 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Model... 5
5 Requirements... 6
5.1 General requirements... 6
5.2 Performance requirements... 6
6 Test methods... 8
6.1 General... 8
6.2 Appearance and size inspection... 8
6.3 Air tightness test... 8
6.4 Vibration resistance test... 8
6.5 Temperature resistance test... 9
6.6 Durability test... 9
6.7 Oxygen aging resistance test... 9
6.8 Ozone aging resistance test... 9
6.9 Compatibility test... 9
6.10 Hydrostatic pressure strength test... 10
6.11 Salt spray corrosion resistance test... 10
6.12 Temperature cycle resistance test... 10
6.13 Compatibility test... 10
7 Marks... 11
Annex A (normative) Receptacle structure type... 12
Annex B (informative) Antifreeze design of receptacle... 15
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009
“Directives for standardization - Part 1.Structure and drafting of standards”.
This Standard replaces GB/T 26779-2011 “Fuel cell electric vehicles - Refueling
receptacle”. Compared with GB/T 26779-2011, in addition to structural
adjustments and editorial changes, the main technical changes are as follows.
- added the ozone aging resistance test (see 5.2.6);
- added the salt spray corrosion resistance test (see 5.2.9);
- added the temperature cycle resistance test (see 5.2.10);
- added the compatibility test (see 5.2.11);
- added the 70MPa receptacle size (see Figure A.3);
- added an informative appendix for the antifreeze design of receptacle (see
Annex B);
- modified the processing requirements of 35MPa receptacle (see Figure A.1,
Figure A.2, Figure A.1 of Edition 2011 and Figure A.3 of No. 1 Amendment);
- deleted the anti-static design (see 5.1.4 of Edition 2011);
- deleted the hydrogen embrittlement requirements of materials (see 5.1.6 of
Edition 2011);
- deleted the chapter of inspection rules (see Chapter 7 of Edition 2011);
- deleted the size design of 25MPa receptacle (see Figure A.1 of Edition
2011).
Attention is drawn to the possibility that some of the elements of this Standard
may be the subject of patent rights. The issuing authority shall not be held
responsible for identifying any or all such patent rights.
This Standard was proposed by Ministry of Industry and Information Technology
of the People's Republic of China.
This Standard shall be under the jurisdiction of National Technical Committee
on Automobile of Standardization Administration of China (SAC/TC 114).
The drafting organizations of this Standard. China Automotive Technology
Research Center Co., Ltd., Shanghai Reshaping Energy Technology Co., Ltd.,
Tongji University, SAIC Maxus Automobile Co., Ltd., Chongqing Changan New
Energy Automobile Technology Co., Ltd., Xiangyang Daan Automobile Testing
Center Co., Ltd., Shanghai Shunhua New Energy System Co., Ltd., Shanghai
Jie Hydrogen Technology Co., Ltd., Shanghai Motor Vehicle Testing and
Certification Technology Research Center Co., Ltd., Zhejiang University, Beijing
Yihuatong Technology Co., Ltd., Toyota Motor (China) Investment Co., Ltd.
Main drafters of this Standard. Lan Hao, Wei Qinglong, Zhang Xiaodan, Hou
Yongping, Hao Dong, Chen Guang, Zhou Yun, Gao Huiqiang, Hao Weijian,
Yuan Changrong, He Yuntang, Ye Xuefeng, Wang Dan, Piao Shiwen, Gu
Chengjie, Zhao Xiaoxiao, Chen Pei, Jiang Junling, Pei Fenglai, Pan Xiangmin,
Zheng Jinyang, Hua Zhengli, Liu Ran, Zheng Baoqian, Xu Nuo.
This Standard was issued in 2011 for the first time. This is the first revision.
Hydrogen fuel cell electric vehicle refueling receptacle
1 Scope
This Standard specifies types, marks, requirements and test methods for
hydrogen fuel cell electric vehicle refueling receptacle.
This Standard is applicable to the hydrogen fuel cell electric vehicle refueling
receptacle that uses compressed hydrogen as working medium, the rated filling
pressure does not exceed 70MPa, the working temperature is -40°C~85°C.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 1690-2010, Rubber, vulcanized or thermoplastic - Determination of the
effect of liquids
GB/T 10125, Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 24548, Fuel cell electric vehicles - Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
24548 as well as the followings apply.
3.1 receptacle
a component assembly connected to the hydrogenation gun on the vehicle
3.2 nominal working pressure
in the standard state, the designed rated filling pressure
4 Model
The receptacle model consists of the following four parts.
5 Requirements
5.1 General requirements
5.1.1 The interface type and size shall meet the requirements of Annex A.
Designs such as chamfering, protective cover fixing groove, hexagonal shape
that are easy to install are allowed. Such design shall not affect the normal
engagement of the hydrogenation gun.
5.1.2 In order to solve the freezing problem of hydrogenation gun caused by
hydrogen pre-cooling, refer to Annex B for the design of receptacle.
5.1.3 A check valve shall be included in the design of receptacle.
5.2 Performance requirements
5.2.1 Air tightness
Carry out the air tightness test according to the method specified in 6.3.First
use a leak detector to check. If no bubbles are generated within 1min, it is
conforming. If bubbles occur, continue using the leak detector or other methods
to measure.
5.2.2 Vibration resistance
Carry out the vibration resistance test according to the method specified in 6.4.
All connectors shall not be loose. Its air tightness shall meet the requirements
of 5.2.1.
5.2.3 Temperature resistance
Carry out the temperature resistance test according to the method specified in
6.5.There shall be no air bubbles.
5.2.4 Durability
Modified serial number (in Arabic numerals, such as 01, 02);
Matched basic size of receptacle and hydrogenation gun (such
as 40/18);
5.2.5 Oxygen aging resistance
For the seals in contact with hydrogen at the receptacle, carry out the oxygen
aging test according to the method specified in 6.7.
5.2.6 Ozone aging resistance
For the seals in contact with air at the receptacle, carry out the ozone aging
resistance test according to the method specified in 6.8.There shall be no
obvious deformation, deterioration, spots, cracks and so on.
5.2.7 Compatibility
For the non-metal parts in contact with hydrogen at the receptacle, carry out
the compatibility test according to the method specified in 6.9.Its volume
expansion rate shall not be greater than 25%.
5.2.8 Hydrostatic strength
The pressure-bearing parts of the receptacle shall be subjected to the
hydrostatic strength test according to the method specified in 6.10.There shall
be no cracks or permanent deformation.
5.2.9 Salt spray corrosion resistance
Test according to the method specified in 6.11.The receptacle shall not show
signs of corrosion or peeling off the protective layer. The receptacle shall meet
the air tightness requirements specified in 5.2.1.
5.2.11 Compatibility
Only the receptacle with a nominal working pressure of 70MPa needs to be
tested for compatibility. Carry out the compatibility test according to the method
specified in 6.13.After the test, there shall be no abnormal wear and shall meet
the requirements for air tightness in 5.2.1.
6 Test methods
6.1 General
Unless otherwise specified, the test shall be carried out under the followingm conditions.
6.2 Appearance and size inspection
Use visual inspection for the appearance inspection of receptacle. Size
measurement can be added if necessary.
6.3 Air tightness test
When the check valve of the receptacle is closed, at the outlet end of receptacle,
access with leak detection gas. Respectively test under two pressure states of
0.5MPa and 1.25 times the nominal working pressure.
6.4 Vibration resistance test
Reliably fix the test piece on the vibration test bench. From 5Hz~60Hz, each
integer frequency point needs to vibrate 8min, 448min in total. The amplitude is
shown as Table 2.
6.5 Temperature resistance test
The check valve of the receptacle is closed. Fill the outlet end of the receptacle
with a leak detection gas whose pressure is the nominal working pressure. Put
it in an incubator. The temperature rises from room temperature to 85°C±2°C.
Keep the temperature for 8h. Immerse in 85°C water for 1min. Record whether
there are bubbles.
6.6 Durability test
The durability test is carried out according to the following steps. The total
number of cycles is 15000.
6.7 Oxygen aging resistance test
The seals in contact with hydrogen at the receptacle shall be placed in oxygen
at a temperature of 70°C±2°C and a pressure of 2MPa for 96h. Observe the
changing state.
6.8 Ozone aging resistance test
The seals in contact with air at the receptacle shall be placed in the air at a
temperature of 40°C±2°C and an ozone volume fraction of 5×10-7 for 120h.
Observe the changing state.
6.9 Compatibility test
After the non-metal parts in contact with hydrogen at the receptacle shall be
immersed in hydrogen at the nominal working pressure and room temperature
for 168h, from the decompression, within 5min, the volume change rate and
mass change rate shall be measured according to 7.2 and 7.3 of GB/T 1690-
2010.The number of test sample is one.
6.10 Hydrostatic pressure strength test
Seal the outlet end of the receptacle. Access with hydrostatic pressure of 3
times the nominal working pressure. The duration shall not be less than 1min.
6.11 Salt spray corrosion resistance test
The temperature in the salt spray box shall be kept between 33°C~36°C. The
receptacle is in horizontal support and exposed to the salt spray that is
composed of 5% sodium chloride and 95% distilled water in accordance with
GB/T 10125.
6.12 Temperature cycle resistance test
After pressurizing to nominal working pressure, put the receptacle in a
thermostat. The temperature shall rise from 15°C to 85°C within 0.5h. Keep it
at this temperature for 2h. Then drop from 85°C to -40°C within 1h. Keep it at
this temperature for 2h.
6.13 Compatibility test
The compatibility test shall be carried out in accordance with the following steps.
7 Marks
There shall be obvious related marks including working pressure and hydrogen
signs on the inside of the protective cover outside the receptacle, for example,
"35MPa, hydrogen" "70MPa, hydrogen" "35MPa, H2" "70MPa, H2".
Annex A
(normative)
Receptacle structure type
Figure A.1~Figure A.3 specify the structure of the receptacle under different
pressures.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 26779-2021 be delivered?Answer: The full copy PDF of English version of GB/T 26779-2021 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 26779-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 26779-2021_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 26779-2021 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB/T 26779-2021?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 26779-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of GB/T 26779-2021?A step-by-step guide to download PDF of GB/T 26779-2021_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 26779-2021".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|