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helium leak center

  • QUANTITATIVE LEAK TEST DESIGN GUIDE

    helium and the helium leak rate determined. Once the helium leak rate is known, the leakratesofother gases, such as nitrogen, can be estimated. The major steps of this procedure are: The object to be tested is pressurized with 1. 2. 3. Pressuring the test object with pure helium or a helium- nitrogen mixture (preferably the former).[...]

  • Leak Testing Equipment - Leak Detectors | InterTech

    Leak Testing & Detection Equipment & Systems Turnkey Solutions for Leak Testing, Functional Testing, and Test Centric Assembly. Founded in 1973, InterTech Development Company is a world leader in test-centric assembly and test technology, specializing in automated leak and functional testing with 7 patented mass flow and hydraulic technologies as well as proven expertise in helium mass ...[...]

  • Helium Leak Detection Systems from Pfeiffer Vacuum

    Helium Leak Detection Systems. Pfeiffer Vacuum discontinued the production and sales of automated helium leak detection systems and helium recovery units in July 2016. In future, we wish to focus in this sector on selling our leading leak detector and vacuum solutions and on …[...]

  • VARIAN 979 SERIES OPERATION MANUAL Pdf Download.

    Model 979 Series Helium Mass Spectrometer Leak Detector C.5 Helium Mass Spectrometer Leak Detection (MSLD) Helium is an excellent trace gas because it is the lightest of the inert gases and as a conse- quence readily penetrates small leaks. In addition, its presence in the atmosphere is minute (5 PPM or 4 millitorr absolute).[...]

  • Testing for Container Closure Integrity Using Helium Leak ...

    Testing for Container Closure Integrity Using Helium Leak Testing Container closure integrity is defined as the ability and quality of a container closure system to provide protection and maintain efficacy and sterility during the shelf life of a sterile drug product.[...]

  • Right to Know Hazardous Substance Fact Sheet

    Helium is a colorless, odorless gas. It is used in weather balloons, in welding gases, and as a carrier gas in some industrial operations. Liquid Helium is used as a closed system cooling agent. FLAMMABILITY CONTAINERS MAY RUPTURE OR BURST IN FIRE Reasons for Citation Helium is on the Right to Know Hazardous Substance List[...]

  • Leak Testing | Leak Detector Repair | LACO Technologies

    LEAK DETECTOR REPAIR & MAINTENANCE. Put our experts on your team and access our network of service technicians with the training and experience to service all brands of helium leak detectors. Repairs and Preventive Maintenance services are available either in-house at LACO, or on-site at your location. Repairs. On-site leak detector services[...]

  • Analytical Testing Services | Oneida Research Services

    Oneida Research Services, Inc. (ORS) provides analytical testing services to support the microelectronics, telecommunications, aerospace, automotive, medical, and defense industries. Our specialties include RGA testing, hermeticity testing, environmental testing, mechanical testing, materials and surface analysis, and component analysis.[...]

  • Helium Leak Detector Rentals & Repairs - UHVTS

    We repair Leybold helium leak detectors, turbo pumps, vacuum gauges, frequency converters, leak checks, & offer calibration services.[...]

  • NASA Electronic Parts and Packaging

    Jun 17, 2014· hermeticity of sealed packages: Helium Mass Spectrometry (HMS), including Cumulative Helium Leak Detection (CHLD); Krypton -85 (Kr-85); and Optical Leak Test (OLT). • HMS and Kr-85 systems use back pressurization of a tracer gas to enter existing leak paths. A detector is used to determine the presence of gas.[...]

  • CONVERSION OF LEAK FLOW-RATES FOR VARIOUS FLUIDS …

    as for instance, helium, when a mass-spectrometer is used as leak-test apparatus. Pressure (vacuum, atmospheric-pressure and over-pressure) Conversion of leak flow-rates at different pressures will he needed mainly for the following reason: Most of the gas leakages are measured either by means of[...]

  • Service Center - pfeiffer-vacuum.com

    Pfeiffer Vacuum Scandinavia AB, Upplands Väsby. Johanneslundsvägen 3 Upplands Väsby SE-19461. T +46 8 590 748 10. F +46 8 590 748 88. write message[...]

  • Helium Recovery | Chemical and Biophysical Instrumentation ...

    There are portable helium leak detectors based on mass spectrometers which are ideal for the task, but these can be somewhat expensive. For our purposes we have found that a "Thermal Conductivity Gas Leak Checker", often used to find leaks in a GC-MS, works well enough.[...]

  • Vacuum Leak Test, Helium Leak Detection, Automated Control ...

    Product Center. HJ is committed to vacuum technology, air tightness testing and helium leak detection's research, design, manufacture and service, owns core technology intellectual property rights, pursues to provide clients with optimized production line inspection solutions to …[...]

  • Calibrated leak | Pfeiffer Vacuum

    Calibrated leak. Helium calibrated leak from 10-9 mbar l/s to 10-4 mbar l/s, including gas reservoir. Product description. Supplied with certificate of calibration; Can be equipped with manually operated valve (mandatory for leak values greater than 8 · 10-6 mbar l/s); Possibility to deliver a specific value according to customer need[...]

  • Whitepapers - Helium Leak

    Leak Detection Associates is the World's Leading Manufacturer of custom-designed, Helium Based Leak Testing Systems serving the development, qualification and testing needs of the pharmaceutical, biotechnology, medical device and food packing industries.[...]

  • Helium Leak Detector Service & Repair | UHV Tech Services Inc.

    Our evaluation fee of $100 is much cheaper than the manufacturer fee and it is waived if the repair is accepted. We are in frequent communication with our customers to figure out the best possible solutions for their helium leak detector repair. We are a Leybold and LACO authorized repair service center.[...]

  • Vacuum Leak Detectors and Helium Leak Detectors

    Helium leak detectors are the ideal solution for leak detection and leak-tightness testing under vacuum. The test gas Helium is safe and a small, light molecule which is suitable for detecting micro leaks. The detection range of Helium in vacuum tests lies between 10-2 and 10-13 Pa · m 3 /s. Helium leak detection is extremely accurate ...[...]

  • Leak Testing Examinations

    Helium leak testing is the most reliable and conclusive method of leak detection, in comparison with bubble testing which is suitable for identifying only large leaks and cannot quantify them. At Intero Integrity Services, we offer flexible solutions which can be adapted to our client's needs.[...]

  • Contact Us - Helium Leak

    Leak Detection Associates is the World's Leading Manufacturer of custom-designed, Helium Based Leak Testing Systems serving the development, qualification and testing needs of the pharmaceutical, biotechnology, medical device and food packing industries.[...]

  • Leak Testing | Swagelok Southwest | Swagelok

    Helium Leak Testing . Swagelok Southwest offers mass spectrometer leak detection using an Agilent helium leak detector, with capability of 1x10-9 std/cc/sec leak rate detection. Both inboard and outboard detection available. We can provide helium leak testing with any …[...]

  • ADIXEN PFEIFFER HELIUM LEAK DETECTORS - A-VAC Industries

    adixen pfeiffer helium leak detectors A-VAC is proud to be the Southern California distributor for Alcatel Adixen and stock their full line of helium leak detectors. Alcatel leak detectors are designed for numerous applications, including...[...]

  • LEAK TESTING METHODOLOGIES

    a final automated fine leak test is carried out using helium (if a component has a gross leak and this is not detected first with a pressure decay test, large quantities of helium will leak out of the test unit, contaminating the system and making it inoperable for a long time).[...]

  • Helium leak testing Archives - Document Center's Standards ...

    If a helium leak detector is used and the high vacuum pump is an ion pump or cryopump, leak testing is best accomplished during the roughing cycle as these pumps leave a relatively high percentage of helium in the high vacuum chamber. This will obscure all but large leaks, and the trace gas will quickly saturate the pumps.[...]

  • Leak Testing Gas Components and Systems

    Nov 27, 2019· HELIUM LEAK DETECTION, OUTSIDE-IN. Where leakage is from the outside into a vessel, chamber or pipe—the pressure inside is lower than that of the surroundings. Here, helium leak detection involves spraying helium in different areas where leaks may occur and monitoring when helium is detected in the interior of the test part.[...]

  • Services - Helium Leak

    Leak Detection Associates is the World's Leading Manufacturer of custom-designed, Helium Based Leak Testing Systems serving the development, qualification and testing needs of the pharmaceutical, biotechnology, medical device and food packing industries.[...]

  • Helium Leak Detectors by Pfeiffer Adixen Alcatel, Leybold ...

    The leak testing equipment along with helium leak sniffers and helium mass spectrometers are instruments that are used for detecting and locating small leaks. Originally developed by the Manhattan Project, helium leak detectors find microscopic leaks for a variety of industries, including medical, automotive airbag, road wheel, vacuum systems ...[...]

  • Leak Testing Archives - Cincinnati Test SystemsCincinnati ...

    Nov 30, 2018· Helium leak testing: from airbags to air-conditioning units and fuel rails, from anything implanted in the body to hermetically sealed enclosures for integrated circuits, there are some instances where the acceptable leak rate is so small it's practically zero.[...]

  • GasCheck Tesla, handheld leak detector for MRI scanner ...

    GasCheck Tesla helium leak detector Handheld leak detector for MRI scanner maintenance. GasCheck Tesla is a highly sensitive leak detector designed for effective use within high magnetic fields found around the outside of Magnetic Resonance Imaging (MRI) scanners.The instrument's advanced micro-thermal conductivity sensor provides rapid, accurate measurement of all gas leaks, including ...[...]

  • CCI Guidelines - Helium Leak

    Leak Detection Associates is the World's Leading Manufacturer of custom-designed, Helium Based Leak Testing Systems serving the development, qualification and testing needs of the pharmaceutical, biotechnology, medical device and food packing industries.[...]