{"id":7561,"date":"2022-04-24T09:57:46","date_gmt":"2022-04-24T01:57:46","guid":{"rendered":"https:\/\/palas.com.cn\/en\/?p=7561"},"modified":"2022-04-24T10:06:17","modified_gmt":"2022-04-24T02:06:17","slug":"national-institute-of-metrology","status":"publish","type":"post","link":"https:\/\/palas.com.cn\/en\/national-institute-of-metrology\/","title":{"rendered":"How to make the immeasurable measurable"},"content":{"rendered":"

One of the main routes of transmission for COVID-19 is via aerosols in the air. Therefore, wearing a mask can effectively prevent transmission. The protective effect of the mask must be checked with a suitable filter tester. Verification and calibration of the filter tester are of paramount importance. With this in mind, the National Institute of Metrology (NIM) has selected devices such as U-SMPS2100X, DC 10000, and UF-CPC 100, Charme\u00ae from aerosol monitoring specialist Palas\u00ae for the calibration and testing of respirator filter efficiency testers.<\/p>\n

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Officially trusted choice<\/strong><\/p>\n

The NIM is a national statutory metrological inspection body approved by the General Administration of Quality Supervision, Inspection and Quarantine and the Bureau of Quality and Technical Supervision. Its functions include a wide range of tasks such as research and setting social public measurement standards and transferring values, compulsory testing of measuring instruments and quality control of measuring instrument products, researching metrological science and technology and monitoring methods. The institution also participates in the formulation and revision of metrological test specifications and metrological technical specifications.<\/p>\n

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NIM was looking for instruments that would meet high technical specification such as
\n\u00b7\u00a0 \u00a0\u00a0<\/strong>JJF 1562-2016 “Condensation Nucleus Particle Counter Calibration Specification”,
\n\u00b7\u00a0 \u00a0\u00a0<\/strong>JJF 1800-2020 “Aerosol Photometer Calibration Specification”,
\n\u00b7\u00a0 \u00a0\u00a0<\/strong>ISO 15900:2009 “Differential Electromigration Method for Measurement of Aerosol Particle Size Distribution”,
\n\u00b7\u00a0 \u00a0\u00a0<\/strong>GB 2626-2019 “Respiratory protection self-priming filter anti-particulate respirator”<\/p>\n

NIM learned that the Palas\u00ae U-SMPS2100 series scanning mobility particle size spectrometer not only meets these specification requirements but also provides a wider particle size measurement range (8nm~1200nm) with more particle size monitoring channels (up to 256 original channels). The series can also be combined with a single-particle aerosol particle size spectrometer to achieve ultra-wide particle size monitoring from several nanometers to 100 microns. The Palas\u00ae U-SMPS2100 series allows a system upgrade for future applications. To carry out the calibration service of the mask particle filtration efficiency tester and the calibration service of the condensation nuclei counter, NIM selected Palas\u00ae Scanning Mobility Particle Size Spectrometer and Charme\u00ae Electrometer as core equipment.<\/p>\n

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Accurate monitoring data<\/strong><\/p>\n

There are two important monitoring indicators in the verification project of the mask particle filtration efficiency tester, which are the particle size distribution of salt aerosols and the particle size distribution of oily aerosols. The test system uses a Palas\u00ae U-SMPS 2100X Scanning Mobility Particle Size Spectrometer to analyze polydisperse aerosols produced by salt and oily aerosol generators. Accurate and stable separation of polydisperse aerosols into monodisperse aerosols by Palas\u00ae DEMC 2000 electrostatic classification column. After the condensate nucleus particle counter U-CPC 100 is counted, the control unit counts and outputs the particle size spectrum, to realize the test of the counted median particle size and geometric standard deviation of the sample aerosol. Palas\u00ae U-SMPS has a size resolution of up to (120 channels\/decade). By using the system software PDAnalyze, data can be automatically saved with one key without the need for an external data recording system and additional synchronization equipment, and the particle size distribution diagrams can be automatically merged in various forms to present clear and intuitive data to users.<\/p>\n

Palas\u00ae instruments combine accurate and reliable particle size analysis and counting to provide flexible monitoring equipment. Palas\u00ae smart solutions open the door to the traditional particle size analysis market.<\/p>\n

Universal Scanning Mobility Particle Sizer U-SMPS<\/strong><\/p>\n

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\nBenefits
\n<\/strong>\u00b7\u00a0 \u00a0 Particle size distributions from 4 nm to 1.200nm
\n\u00b7\u00a0 \u00a0 Continuous and fast-scanning principle of measurement
\n\u00b7\u00a0 \u00a0\u00a0High resolution in up to 256 size classes \/ decade (128 channels\/ten times the particle size)
\n\u00b7\u00a0 \u00a0 Suitable for concentrations of up to 108<\/sup>\u00a0particles\/cm3
\n<\/sup>\u00b7\u00a0 \u00a0\u00a0Universally connects to DMAs and nanoparticle counters from other manufacturers
\n\u00b7\u00a0 \u00a0\u00a0Graphic display of measurement values
\n\u00b7\u00a0 \u00a0\u00a0Intuitive operation using 7\u2033 touchscreen and GUI
\n\u00b7\u00a0 \u00a0\u00a0Integrated data logger
\n\u00b7\u00a0 \u00a0\u00a0Supports multiple interfaces and remote access
\n\u00b7\u00a0 \u00a0\u00a0Low maintenance
\n\u00b7\u00a0 \u00a0\u00a0Reliable function
\n\u00b7\u00a0 \u00a0\u00a0Reduces your operating expenses<\/p>\n

Applications
\n<\/strong>\u00b7\u00a0 \u00a0\u00a0Filter test
\n\u00b7\u00a0 \u00a0\u00a0Aerosol research
\n\u00b7\u00a0 \u00a0\u00a0Environmental and climatic studies
\n\u00b7\u00a0 \u00a0\u00a0Inhalation experiments
\n\u00b7\u00a0 \u00a0\u00a0Interior and workplace measurements<\/p>\n

DC 10000<\/strong><\/p>\n

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 <\/p>\n

Benefits
\n<\/strong>\u00b7\u00a0 \u00a0\u00a0No compressed air connection; only electrical power supply 115 – 230 V, 50 – 60 Hz
\n\u00b7\u00a0 \u00a0\u00a0Dilution factors 1:10, 1:100, 1:1,000, 1:10,000
\n\u00b7\u00a0 \u00a0\u00a0The user can perform a simple functional test on-site
\n\u00b7\u00a0 \u00a0\u00a0The dilution systems can be combined with all common particle counters
\n\u00b7\u00a0 \u00a0\u00a0The dilution systems from Palas\u00ae are characterized unambiguously. This is documented with a calibration certificate for each individual device.<\/p>\n


\nApplications
\n<\/strong>\u00b7\u00a0 \u00a0\u00a0Aerosol dilutions in filter media test systems, e.g. MFP 1000 HEPA and MFP Nano plus according to EN 1822 and ISO 29463
\n\u00b7\u00a0 \u00a0\u00a0Aerosol dilutions in filter test systems, e.g. according to EN 779, ASHRAE 52.2 and ISO 16890
\n\u00b7\u00a0 \u00a0\u00a0Aerosol dilution in clean rooms
\n\u00b7\u00a0 \u00a0\u00a0Aerosol dilution in the operating room to determine the level of protection according to SWKI VA 105-1 and DIN 1946-4
\n\u00b7\u00a0 \u00a0\u00a0Recovery tests according to ISO 14644-3<\/p>\n

UF-CPC 100
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\n<\/strong><\/p>\n

Benefits
\n<\/strong>\u00b7\u00a0 \u00a0\u00a0The UF-CPC is able to count up to 2,000,000 particles\/cm3<\/sup>\u00a0in single count mode, depending on the sensor in use (able to be switched out by the user).
\n\u00b7\u00a0 \u00a0\u00a0Integrated computer with 7” touch screen
\n\u00b7\u00a0 \u00a0\u00a0Intuitive user interface with sophisticated software for data analysis
\n\u00b7\u00a0 \u00a0\u00a0Integrated data logger
\n\u00b7\u00a0 \u00a0\u00a0Unlimited network compatibility that supports remote control and data storage on the Internet
\n\u00b7\u00a0 \u00a0\u00a0Integrated interface for process control applications\u00a0<\/strong><\/p>\n


\nApplications
\n<\/strong>\u00b7\u00a0 \u00a0 Aerosol research
\n\u00b7\u00a0 \u00a0\u00a0Testing of filters and air purifiers
\n\u00b7\u00a0 \u00a0\u00a0Environmental measurements
\n\u00b7\u00a0 \u00a0\u00a0Workplace exposure and occupational safety studies
\n\u00b7\u00a0 \u00a0\u00a0Studies concerning inhalation and health impacts
\n\u00b7\u00a0 \u00a0\u00a0Process control
\n\u00b7\u00a0 \u00a0\u00a0Printer emission studies<\/p>\n

Palas\u00ae China will arrange a series of online webinars both in English and Chinese for Ambient air quality continuous monitoring system, Palas\u00ae SMPS scanning mobility particle sizer, Palas\u00ae Promo\u00ae & Aerosol Generator & Dilution system, ISO 16890 filter media tester, Palas\u00ae MFP 3000 G, ISO 29463-3 filter media tester, Palas\u00ae MFP Nano plus 4000, ISO 17536 Fractional filtration efficiency tester of Oil Mist Separator, Palas\u00ae HMT 1000, as well as Particle Distribution Measurement Devices Introduction – Optical Scattering Method and many other solutions. If interested in the webinars for our products, you are more than welcome to register on our official website and get the latest webinar plan!<\/p>\n

Topic<\/strong>\uff1a<\/strong><\/p>\n

Application of Palas\u00ae products in the metrology industry<\/strong><\/p>\n

Time:<\/strong><\/p>\n

18 May 2022, Wednesday 15: 00 \u2013 16: 00<\/strong><\/p>\n

Presenter<\/strong>\uff1a<\/strong>Mr. Yi Fangjie
\n<\/strong>Market Manager Industry and Science at Palas\u00ae China<\/strong><\/p>\n

You are welcome to register for the conference!<\/p>\n

Register online now to participate in our webinars if interested<\/a>
\n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Palas\u00ae Instrument Intelligence Solutions Provide National Institute of Metrology with Accurate, Stable Monitoring Data<\/p>\n","protected":false},"author":2,"featured_media":7562,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[376],"tags":[],"_links":{"self":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/7561"}],"collection":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/comments?post=7561"}],"version-history":[{"count":2,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/7561\/revisions"}],"predecessor-version":[{"id":7571,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/7561\/revisions\/7571"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media\/7562"}],"wp:attachment":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media?parent=7561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/categories?post=7561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/tags?post=7561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}