1、Designation: D7606 11D7606 17Standard Practice forSampling of High Pressure Hydrogen and Related Fuel CellFeed Gases1This standard is issued under the fixed designation D7606; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the yea
2、r of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This standard practice describes a hydrogen quality sampling apparatus (HQSA) and a procedure for the sampling sa
3、mplingprocedure of high pressure hydrogen at fueling nozzles of stations operating at 35 or 70 Mega Pascal (MPa) fuelingstations.megapascals (MPa) using a hydrogen quality sampling apparatus (HQSA).1.2 This practice does not include the analysis of the acquired sample. Applicable ASTM standards incl
4、ude but are not limitedto test methods referenced in Section 2 of this practice.1.3 This practice is not intended for sampling and measuring particulate matter in high pressure hydrogen. For procedures onsampling and measuring particulate matter see ASTM D7650 and D7651.1.4 The values stated in SI u
5、nits are standard. The values stated in inch-pounds are for information only.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health, and healthenvir
6、onmental practices and determine theapplicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards,
7、Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D4150 Terminology Relating to Gaseous FuelsD7650 Test Method for Sampling of Particulate Matter in High Pressure Hydrogen used as a Gaseous Fuel wit
8、h an In-StreamFilterD7651 Test Method for Gravimetric Measurement of Particulate Concentration of Hydrogen Fuel2.2 SAE Standards3SAE J2600 Compressed Hydrogen Surface Vehicle RefuelingFueling Connection DevicesSAE J2799 70 MPa Compressed Hydrogen Surface Vehicle Fuelling Connection Device and Option
9、al Vehicle to StationCommunicationsSAE TIR J2719 Information Report of the Development of a Hydrogen Quality Guideline Hydrogen Fuel Quality for Fuel CellVehiclesSAE J2799 Hydrogen Surface Vehicle to Station Communications Hardware and Software2.3 California Code of Regulations:4California Code of R
10、egulations Title 4, Division 9, Chapter 6, Article 8, Sections 4180 41813. Terminology3.1 Definitions: See D4150 for definitions of terms for use with gaseous fuels.3.2 Definitions:Definitions of Terms Specific to This Standard:1 This practice is under the jurisdiction of ASTM Committee D03 on Gaseo
11、us Fuels and is the direct responsibility of Subcommittee D03.14 on Hydrogen and Fuel Cells.Current edition approved March 1, 2011Nov. 1, 2017. Published April 2011December 2017. Originally approved in 2011. Last previous edition approved in 2011 asD760611. DOI: 10.1520/D760611.10.1520/D760617.2 For
12、 referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from SAE International (SAE), 400 Commonwealth Dr., Wa
13、rrendale, PA 15096-0001, http:/www.sae.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, A
14、STM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.1
15、 absolute pressurePressure measured with reference to absolute zero pressure, usually expressed in MPa, mm Hg, orpound per square inch (psi).3.2.1 contaminanthigh pressure hydrogenimpurity that adversely affects the components within fuel cell or hydrogenstorage systemshydrogen pressurized between 3
16、5 and 70 MPa.3.1.3 gauge pressurePressure measured above ambient atmospheric pressure. Zero gauge pressure is equal to ambientatmospheric (barometric) pressure.3.1.4 gaseous fuelMaterial to be tested, as sampled, without change of composition by drying or otherwise.3.2.2 hydrogen quality sampling ap
17、paratus (HQSA)an apparatus used to collect hydrogen from a 35 or 70 MPa hydrogenfueling nozzledispenser (SAE J2600 and SAE J2799) into a sample container.3.2 Definitions of Terms Specific to This Standard:3.2.1 high pressure hydrogenFor the purposes of this practice, high pressure hydrogen is hydrog
18、en defined as hydrogenpressurized to 35 or 70MPa.4. Summary of Practice4.1 This practice describes an apparatus and procedure for the sampling of high pressure hydrogen from fueling nozzlesstationsconforming to SAE J2600 or SAE J2799. This practice is intended as a guideline for ensuring collection
19、of a representative samplewithout introducing trace levels of contaminants. Samples collected using this practice should be suitable for trace analysis ofcontaminants, utilizing a variety of analytical techniques.5. Significance and Use5.1 Hydrogen is delivered to fuel cell powered automotive vehicl
20、es and stationary appliances at pressures up to 87.5 MPa. Thequality of hydrogen delivered is a significant factor in maximizing fuel cell efficiency and life span. Contamination can ariseoccurduring the production of fuel cell feed gases, contaminating storage containers, station tubing, and fuel l
21、ines up to the nozzle usedfor fuel delivery. Collection of a representative fuel sample without the introduction of contaminationcontaminants even as lowas parts-per-billion (ppb) per contaminant during collection is crucial for assessing the quality of fuel in real world applications.5.2 This pract
22、ice is intended for application to high pressure, high purity hydrogen; however, the apparatus design and samplingtechniques may be applicable to collection of other fuel cell supplyfeed gases. Many of the techniques used in this practice canbe applied to lower pressure/lower purity gas streams.6. A
23、pparatus Design6.1 The A recommended general design of the HQSA is HQSA, shown in Fig. 1, which is a depiction of the apparatus with thenozzle hydrogen pressure regulated to approximateapproximately 6.9 MPa (1000 psi) before sampling. The pressure of 6.9 MPa(1000 psi) is selected as an example since
24、 it is, generally, the lowest pressure tolerated by hydrogen station safety shutoff systemsFIG. 1 Hydrogen Quality Sampling ApparatusD7606 172while still providing a sample that analytical laboratories can safely handle routinely. routinely is 6.9 MPa (1000 psi). All HQSAparts, including the ventila
25、tion tubes, are hoses, should be made of 316 grade stainless steel (SS).6.2 HQSA Metal Support Plate ( 1, (1, Fig. 1)The HQSA metal support plate is utilized to mitigate damage duringtransportation and support the apparatus. The HQSA is firmly fixed to a metal support plate by tube supports (2, Fig.
26、 1.).6.3 Movable Adjustable PlatformBefore sampling, the metal plate holding the HQSA is firmly clamped onto a heightadjustable and movable platform, such as a heavy duty cart with a hydraulic adjustable horizontal platform and brakes on itswheels. The cart is moved to a position close to the fuelin
27、g station and the height of platform is adjusted so that the fueling nozzleattaches easily to the receptacle of HQSA. The platform height is adjusted to provide a safe and comfortable work space. The cartis then locked into place using the cart wheel brakes.6.3 SAE J2799 Receptacle (3, Fig. 1)SAE J2
28、799 Receptacle (3, Fig. 1) This receptacle can adapt to both 35 and 70MPahydrogen fueling 70 MPa nozzles. For safety reason,reasons, the receptacle mustshould be positioned vertically so that the fuelingnozzle attaches to the receptacle from the top. To support the weight of the fueling nozzle, the
29、receptacle must have an nozzle,additional support (3.1, Fig. 1), which is fixed to the metal support plate is recommended (1, Fig. 1).6.4 Main Valve (4, Fig. 1)The functions of the main valve are explained as follows:6.4.1 Station and HQSA leak testLeak TestThe station leak test is performed before
30、hydrogen fuel sampling to ensure thereare no leaks in the hydrogen fuel delivery system. For sampling the station personnel must attach the fueling While the main valveis closed, attach the nozzle to the SAE J2799 receptacle (3, Fig. 1) first while the main valve is closed. The station leak testproc
31、edure is then initiated. A hand held hydrogen leak detector is used to check ). Check for leaks around all of the connectionsfrom the nozzle to the main valve as in 10.7. There is residual high pressure hydrogen left in the station hose when the station isnot fueling. The residual high pressure hydr
32、ogen can be used for checking the leakage in the complete HQSA system, includingthe sample container, as shown and the complete HQSA system as in 10.8. using a hand held hydrogen leak detector.6.4.2 Prevention of High Pressure Hydrogen Passing through the RegulatorIf the main valve (4, Fig. 1) is no
33、t installed andthe station fueling starts, the diaphragm of the regulator (5, Fig. 1) may fail due to rapid hydrogen pressurization. In this case,pressure relief valve (PRV)(PRV, 15, (Fig. 1) will open to release hydrogen pressure above 10.3 MPa (1500 psi). The main valve(4, Fig. 1) when closed, is
34、designed to contain high pressure hydrogen when the station sampling starts. The main valve is slowlyturned to the open position and the high pressure hydrogen is regulated to 6.9 MPa (1000 psi).6.5 Regulator 5 (5, Fig. 1) and all connections from the SAE J2799 Receptacle to RegulatorThe regulator a
35、nd all theconnections, including tubing, tubingAll the connections (including tubing, tube fittings, adapter fittings and unionsunions) fromthe SAE J2799 receptacle to the main valve and main valve to receptacle to regulator must have a pressure rating of 103 MpaMPa(15,000 psi) or higher. The regula
36、tor should have two gauges, 5.1 and 5.2 in gauges (5.1 and 5.2, Fig. 1,) to monitor both inletand outlet pressures.6.6 Inlet and Outlet Valves (6 and 12, Fig. 1, respectively)The valves should be easily opened and closed, such as ball valves.The HQSA and sample container are cleaned by pressurizing
37、and, releasing hydrogen fromallowing hydrogen to pass through theHQSA and sample container (10.9)10.11) using these valves. This cleaning procedure can be repeated many times (10.11) butmust be performed at least 10 times to ensure a valid sample under most sampling conditions.6.7 Sample ContainersC
38、ontainers (9, Fig. 1)The pressure rating of the sample containers must exceed the set point on thePRV (15, Fig. 1). The maximum pressure rating for sample containers before bursting is 12.4 MPa (1800 psi). The samplecontainers and both inlet and outlet valves (8 and 10, Fig. 1, respectively) are int
39、ernally coated with silicon (Si) since sulfur gasanalysis to in the low ppb range is required under SAE TIR J2719 and other hydrogen fuel quality specifications. J2719. To avoidair contamination during sampling, both inlet and outlet valves of the sample containers are can be equipped with quick con
40、nects one end of the container has a quick-connect stem and the other end a quick-connect body. connects. These twoquick-connections (7 and 11, Fig. 1) and the inlet and outlet valves provide a double seal on both ends of the sample container.6.8 HQSA Pressure Release Bypass Valve (14, Fig. 1)The ba
41、ll valve is always closed before and during sampling. Aftersample collection, the pressure release bypass valve is opened, before removal of the pressurized and sealed sample container thesample container is removed, to release the hydrogen pressure in the HQSA through athe check valve (16, Fig. 1).
42、 Hydrogen at6.9 MPa (1000 psi) contained inside the HQSA must be released before next sample container can be safely connected to the inletquick-connection (7, Fig. 1).6.9 ProportionalPressure Release Valve (PRV, 15, Fig. 1)The PRV is set at 10.3MPa 10.3 MPa (1500 psi) to protect the 12.4MPa (1800 p
43、si) pressure proof sample container.6.10 Check ValveValve (6, Fig. 1)The check valve (16,must Fig. 1) with 69 Kilo Pascal (KPa) (10 psi) crack pressure beable to withstand a cracking pressure of 69 kilopascal (kPa; 10 psi) and is installed at the vent of the HQSA (Fig. 1) to preventair from back dif
44、fusion of air into the HQSA.6.11 Ventilation Assembly (17, Fig. 1)The ventilation assembly contains a 3 meter (m) (10 ft) Hydrogen must be vented ata safe distance from personnel and equipment.Adesign that has been successfully implemented uses at least a 3 meter (m; 10 foot(ft) long SS braided tubi
45、ng interfacedhose connected to a dual vertical, retractable 2.4 m (8 ft) longby 1.27 cm (centimeter (cm;D7606 17312 in.) Outside Diameter (OD) SS tubing which is kept vertical to the ground. outside diameter (OD) SS vent stack. Duringsampling, the hydrogen fuel flows through the HQSA, then the check
46、 valve (16, Fig. 1), through the a 3 m long SS braided tubing(17.1,hose (17, Fig. 1) and dual 2.4 m long 1.27 cm (vent stack 12 in.) OD SS tubing (17.2, Fig. 1), before venting to atmosphereat approximately 2.4 m (8 ft) above ground.the ground. Ensure that venting is performed in accordance with app
47、licable national,regional, and local laws and regulations.6.12 Safety GroundThe HQSA must be electrically grounded. A permanent attachment to the HQSA is recommended. A 10gauge braided copper wire 3 m long, with a grounding strap or clamp that attaches to the station ground has been successfullyutil
48、ized.6.13 Movable Adjustable Platform(Optional)Before sampling, the metal plate holding the HQSAcan be firmly braced ontoa height adjustable and movable platform, such as a heavy duty cart with a hydraulic adjustable horizontal platform and brakeson its wheels. The cart is moved to a position close
49、to the fueling station and the height of the platform is adjusted so that thefueling nozzle attaches easily to the receptacle of the HQSA. The platform height is adjusted to provide a safe and comfortablework space. The cart is then locked into place using the cart wheel brakes.7. Additional Equipment Needed7.1 Hydrogen Leak DetectorA hydrogen leak detector is a required as a safety device needed to detect hydrogen gas leakswhen the HQSA is pressurized. Leak detection using soap bubbles or any liquid must not be used due to possible moisture
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