Standard Number: HJ 949-2018(HJ949-2018)
Chinese:民用建筑环境空气颗粒物 (PM 2.5 )渗透系数调查技术规范
English:Technical Specification for Investigation of Infiltration Coefficients of Ambient Air Particulate Matter (PM 2.5) in Civil Buildings
Effective Date:2018-07-12
Standard Applicability:This standard applies to the use of particulate matter (PM2.5) concentration measurement method, to carry out civil building ambient air particulate matter (PM2.5) permeability coefficient investigation. Civil building ambient air particulate matter (PM10) infiltration coefficient investigation can refer to the implementation of this standard.
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