Determination Of Air Movement Speed, Air Humidity Or Air Temperature In Residential And Industrial Premises; Determining The Level Of Illumination, Brightness Or Gloss Of The Surface; Determining The Content Of Carbon Oxide (Iv) In The Air By The Electrochemical Method Using Portable Gas Analyzers; Determination Of Eggs And Larvae Of Helminths, Cysts, Oocysts Of Intestinal Pathogenic Protozoa, Larvae Of Helminths In Sewage Sludge, Sludge, Solid Fraction Of Agricultural Runoff, Soil, Sand And Solid Household Waste According To The Romanenko Method; Determination Of Phenol Content In Air By Photometric Method (With Para-Nitroaniline); Determination Of The Formaldehyde Content In The Air By The Photometric Method (With Acetylacetone); Determination Of Ammonia Content In Atmospheric Air By Photometric Method; Determination Of The Dust Content In The Air By The Gravimetric Method; Measuring The Volumetric Activity Of Radon-222 In The Air Of Buildings And Structures Using The Alphaguard Df2000 Radon Monitor; Measurement Of The Power Level Of The Absorbed Dose Of External Gamma Radiation At One Point; Selection Of Samples (Samples) For Laboratory Research; Preparation Of A Conclusion Based On The Results Of Research/Measurements (Without Taking Into Account The Cost Of Research/Measurements)