![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/1-1.png\")
![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/2-1.png\")
<\/p>\nOn 6th December 2021, the Whole Measurement Calibration Method of Particle Number Concentration Measuring Instrument, an association standard initiated and led by Jiangsu Auto Testing Technologies Co., Ltd. (hereinafter referred to as Auto Testing), a Palas\u00ae agent, was officially released. \u00a0Palas\u00ae, with proven experience in air quality monitoring and know-how in particle size distribution and development, took part in the preparation and drafting process as a drafting team member, and contributed constructive comments and suggestions to the document. Taking full advantage of its strengths in measuring devices, Palas\u00ae uses its scanning mobility particle sizer to provide accurate and stable technical support for the formulation of the measurement calibration method.<\/p>\n
<\/p>\n
At present, particle concentration measuring instruments vary in their performance due to the lack of a uniform standard and calibration method. Thus, it is necessary to introduce such a standard to improve management. The Wujiang District Intelligent Manufacturing Association in Suzhou launched a project to develop the Whole Measurement Calibration Method of Particle Number Concentration Measuring Instrument. Under the principle of practicality and validity, Auto Testing has applied its quality management concept and methods in developing the standard. As a technical service provider, Auto Testing offers “calibration” and “testing” services. The company has invited Palas\u00ae to provide key technical support as a member of the drafting team.<\/p>\n The organisers held a preparatory briefing meeting before the start of work to clarify the purpose, significance and requirements of the standard. The drafting team reviewed the first draft and held several discussions and meetings before passing it over for final review by the expert group. During this process, the project team timely revised the draft according to the comments made by the review experts, and completed the standard and related documents.<\/p>\n Calibration instrument diagram<\/em><\/p>\n The indispensable <\/strong>Palas<\/strong>\u00ae monitoring technology <\/strong><\/p>\n Palas\u00ae devices helped draft the standard with a large amount of measurement data from the start. The Palas\u00ae SMPS, used for developing this standard, is an advanced nanoparticle measuring system that measures aerosol particle size distributions from 4nm to 1200nm. It provides not only accurate and reliable particle size analysis and counts, but also ensures high resolution in up to 256 size channels. The SMPS series offers a wide range of benefits for aerosol analysis at different concentrations and particle size distributions. For example, it can flexibly integrate with various pre-treatment devices (e.g., dilution device). Its easy-to-use touchscreen enables intuitive operation. With its open data file, it is convenient to access and analyse data for self-testing and calibration. In addition, the device is extremely flexible and compatible with mainstream counters.<\/p>\n The Whole Measurement Calibration Method of Particle Number Concentration Measuring Instrument specifies terminology, units of measurement, metrological characteristics, calibration conditions, calibration items, calibration methods, expression of calibration results and recalibration intervals for the whole measurement and calibration of particle number measuring instruments. It is applicable to calibrating particle number concentration measuring instruments (hereinafter referred to as PN instrument) with condensation particle counter (CPC) or diffusion charger (DC) design, including heated sampling tubes, particle counters and volatile particle removers. Other measuring instruments may also refer to this standard.<\/p>\n The release of this standard is significant for the work of measurement and calibration. It also places higher demands on manufacturers of testing equipment to improve product performance. In the future, Palas\u00ae will continue to introduce high-precision and cutting-edge monitoring devices for versatile applications and accurate results.<\/p>\n Palas\u00ae scanning mobility particle sizer (SMPS)<\/strong><\/p>\n Applications Palas\u00ae scanning mobility particle sizer (SMPS) contributes to the development of the Whole Measurement Calibration Method of Particle Number Concentration Measuring Instrument<\/p>\n","protected":false},"author":2,"featured_media":7194,"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\/7193"}],"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=7193"}],"version-history":[{"count":2,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/7193\/revisions"}],"predecessor-version":[{"id":7204,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/7193\/revisions\/7204"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media\/7194"}],"wp:attachment":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media?parent=7193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/categories?post=7193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/tags?post=7193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nThe need for the measurement calibration method<\/strong><\/p>\n![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/3-scaled.jpg\")
\nThe Whole Measurement Calibration Method of Particle Number Concentration Measuring Instrument was released on 6th December 2021<\/em><\/p>\n![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/4-2.png\")
<\/p>\n\n\n
\n Engine exhaust or CVS sampling system<\/td>\n \u53d1\u52a8\u673a\u6392\u6c14\u6216CVS\u91c7\u6837\u7cfb\u7edf<\/td>\n<\/tr>\n \n Heated sampling tube<\/td>\n \u52a0\u70ed\u91c7\u6837\u7ba1<\/td>\n<\/tr>\n \n Cyclone separator (optional)<\/td>\n \u65cb\u98ce\u5206\u79bb\u5668\uff08\u53ef\u9009\uff09<\/td>\n<\/tr>\n \n Primary thermal diluter<\/td>\n \u4e00\u7ea7\u70ed\u7a00\u91ca\u5668<\/td>\n<\/tr>\n \n Evaporation tube or high temperature catalytic vaporizer<\/td>\n \u84b8\u53d1\u7ba1\u6216\u9ad8\u6e29\u50ac\u5316\u6c7d\u63d0\u5668<\/td>\n<\/tr>\n \n Secondary cold diluter (optional)<\/td>\n \u4e8c\u7ea7\u51b7\u7a00\u91ca\u5668\uff08\u53ef\u9009\uff09<\/td>\n<\/tr>\n \n Impact nozzle (optional)<\/td>\n \u51b2\u51fb\u55b7\u5634\uff08\u53ef\u9009\uff09<\/td>\n<\/tr>\n \n Volatile particle remover<\/td>\n \u6325\u53d1\u6027\u9897\u7c92\u53bb\u9664\u5668<\/td>\n<\/tr>\n \n Particle counter (DC or CPC)<\/td>\n \u9897\u7c92\u8ba1\u6570\u5668\uff08DC\u6216CPC\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\nSketch of a particle concentration measuring instrument<\/em><\/p>\n![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/5-2.png\")
<\/p>\n\n\n
\n Aerosol generator<\/td>\n \u6c14\u6eb6\u80f6\u53d1\u751f\u5668<\/td>\n<\/tr>\n \n Aerosol conditioner<\/td>\n \u6c14\u6eb6\u80f6\u8c03\u8282\u5668<\/td>\n<\/tr>\n \n Aerosol classifier<\/td>\n \u6c14\u6eb6\u80f6\u5206\u7ea7\u5668<\/td>\n<\/tr>\n \n Neutraliser<\/td>\n \u4e2d\u548c\u5668<\/td>\n<\/tr>\n \n Clean air<\/td>\n \u6d01\u51c0\u7a7a\u6c14<\/td>\n<\/tr>\n \n Splitter<\/td>\n \u5206\u6d41\u5668<\/td>\n<\/tr>\n \n Condensation particle counter (CPC)<\/td>\n \u6807\u51c6\u9897\u7c92\u8ba1\u6570\u5668\uff08CPC\uff09<\/td>\n<\/tr>\n \n Particle number concentration measuring instrument<\/td>\n \u5f85\u68c0PN\u68c0\u6d4b\u4eea<\/td>\n<\/tr>\n \n Exhaust gas treatment<\/td>\n \u5e9f\u6c14\u5904\u7406<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n ![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/6-1.jpg\")
\nPublication of the association standard<\/strong><\/p>\n![\"\"](\"https:\/\/palas.com.cn\/en\/wp-content\/uploads\/2021\/12\/7.jpg\")
\nBenefits
\n<\/strong>\u00b7\u00a0 \u00a0 \u00a0 Particle size distributions from 4 nm to 1.2 \u00b5m
\n\u00b7\u00a0 \u00a0 \u00a0 Continuous and fast-scanning principle of measurement
\n\u00b7\u00a0 \u00a0 \u00a0 High resolution in up to 128 size classes \/ decade
\n\u00b7\u00a0 \u00a0 \u00a0 Suitable for concentrations of up to 108<\/sup> particles\/cm3<\/sup>\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Universally connects to DMAs and nanoparticle counters from other manufacturers
\n\u00b7\u00a0 \u00a0 \u00a0 Graphic display of measurement values\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Intuitive operation using 7″ touchscreen and GUI\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Integrated data logger\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Supports multiple interfaces and remote access\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Low maintenance\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Reliable function\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Reduces your operating expenses<\/p>\n
\n<\/strong>\u00b7\u00a0 \u00a0 \u00a0 Filtration test\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Aerosol research\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Environmental and climatic studies\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Inhalation experiments\uff1b
\n\u00b7\u00a0 \u00a0 \u00a0 Interior and workplace measurements.<\/p>\n","protected":false},"excerpt":{"rendered":"