Look at the standard
1995-2004, China successively promulgated the standards for controlling indoor radon concentration GB/T16146-1995 and the standards for controlling environmental pollution in private buildings GB 50325-200/kloc-0. T17216-1998 and Indoor Air Quality Standard GB/T 1 18883-2002 have defined the indoor radon concentration control standards of various buildings. In 2004, the Technical Essentials of Healthy Housing Construction (2004 Edition) formulated by the National Housing and Living Environment Engineering Center also included the radon concentration control standard in the indoor air quality standard of human settlements health engineering. Among them, GB 16356- 1996, the Control Standard for Radon and Its Daughters in Underground Buildings, stipulates (1) that the action equilibrium equivalent concentration of the built underground buildings is 400. (2) The action equilibrium equivalent concentration of the proposed underground building is 200. This is based on the use of underground buildings in China, that is, they are usually not considered as permanent houses. If this is not the case, the control level specified in the corresponding standard should be adopted. The Code for Internal Environmental Pollution Control of Civil Building Engineering (GB50325-200 1) stipulates the radon concentration limit of a class of civil buildings (houses, hospitals, old buildings, kindergartens, school classrooms, etc.). ) should be ≤ 200; Class II civil buildings (office buildings, shops, hotels, libraries, exhibition halls, gymnasiums, public transport waiting rooms, restaurants, barbershops, etc.). ) radon concentration limit of 400 or less. It also stipulates that "the indoor environmental quality acceptance of civil construction projects and interior decoration projects should be carried out at least 7 days after the completion of the project and before the project is delivered for use." "Civil construction projects with unqualified indoor environmental quality acceptance are strictly prohibited from being put into use."
Determination of Radon Concentration in Air by GBZT 155—2002 Scintillation Bottle Method
GBZ 1 16—2002 Control Standard for Radon and Its Daughters in Underground Buildings
GBZT 182-2006 specification for indoor radon and its decay products measurement
Hehe, my major is nuclear technology and application, so I know a lot. Now I just started to do radiation hygiene tests. I also know something about indoor radon concentration detection. As for the data of radon measurement by gamma spectrometer, there are few, but there are still some. To do the test, we must first be familiar with the relevant standards and operating procedures. Since we are colleagues, let's send an email to discuss it.