GB/T 36542-2018 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 36542-2018: Haze identification for meteorological observation Status: Valid
Basic dataStandard ID: GB/T 36542-2018 (GB/T36542-2018)Description (Translated English): Haze identification for meteorological observation Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A47 Classification of International Standard: 07.060 Word Count Estimation: 10,140 Date of Issue: 2018-07-13 Date of Implementation: 2019-02-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 36542-2018: Haze identification for meteorological observation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Haze identification for meteorological observation ICS 07.060 A47 National Standards of People's Republic of China Obvious observation recognition Published on.2018-07-13 Implementation of.2019-02-01 State Market Supervisory Administration China National Standardization Administration issued ContentForeword I 1 Scope 1 2 Terms and Definitions 1 3 Identification method 1 4 next day record 2 Appendix A (informative appendix) Calculation method of aerosol extinction coefficient after moisture absorption and actual atmospheric extinction coefficient 3 Reference 6ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Meteorological Administration. This standard is under the jurisdiction of the National Standardization Technical Committee for Meteorological Instruments and Methods of Observation (SAC/TC507). This standard was drafted. Meteorological Observation Center of China Meteorological Administration, Beijing Meteorological Bureau, National Meteorological Information Center, National Meteorological Center, Maritime Weather Bureau, Guangdong Meteorological Bureau, Tianjin Meteorological Bureau, Liaoning Meteorological Bureau. The main drafters of this standard. Zhang Xiaochun, Yan Peng, Gao Lina, Zhang Xiaoling, Wu Yongxue, Zhao Pusheng, Quan Weijun, Guo Jianxia, Liu Daxin, Zhang Yong, Ren Zhihua, Zhang Hengde, Xu Jianming, Tan Haobo, Chi Wenxue, Lu Shanshan, Lei Yong, Ma Qianli, Li Fei, Quan Jiannong, Han Suqin, Ma Yanjun, Jing Junshan, Li Yanan, Wang Mian, Yan Junli. Obvious observation recognition1 ScopeThis standard specifies the methods for observing and identifying defects and the requirements for the next day's records. This standard applies to the observation of helium.2 Terms and definitionsThe following terms and definitions apply to this document. 2.1 霾haze A large number of atmospheric aerosol particles with a particle size of a few microns or less make the horizontal visibility less than 10.0km, and the weather is generally cloudy. 2.2 Horizontal visibility horizontalvisibility In horizontal observation, people with normal vision can recognize the maximum contour of the target from the sky background under the weather conditions at that time. distance. 2.3 Atmospheric aerosol particles atmosphericaerosolparticle Solid and liquid particles suspended in the atmosphere. [GB/T 31159-2014, definition 2.2] 2.4 Fine particle fineparticle PM2.5 Aerosol particles having an aerodynamic equivalent diameter of less than or equal to 2.5 μm. [GB/T 31159-2014, definition 3.7] 2.5 Aerosol extinction coefficient aerosolextinctioncoefficient A physical quantity that characterizes the extent to which atmospheric aerosols cause attenuation of radiant energy. Note. The value is equal to the sum of the aerosol scattering coefficient and the absorption coefficient. The common unit is m-1 or km-1. [GB/T 31159-2014, definition 4.10]3 Identification methodAfter eliminating precipitation, sandstorms, sand, floating dust, blowing snow, snow storms, smoke screens and other weather phenomena that affect the visual range, identify them as follows. a) At the time of observation, the horizontal visibility is < 10.0km and the relative humidity is < 80%, which is directly recognized as 霾. b) At the time of observation, the horizontal visibility is < 10.0km and 80% ≤ relative humidity < 95%. When the moisture absorption increases, the aerosol extinction coefficient and When the ratio of the actual atmospheric extinction coefficient reaches or exceeds 0.8, it is recognized as 霾. Aerosol extinction coefficient and actuality after moisture absorption The atmospheric extinction coefficient can be obtained by referring to the method in Appendix A. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 36542-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 36542-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 36542-2018_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 36542-2018_English will be deemed to be sold to your employer/organization who actually pays 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. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
