Constant noise
Constant noise - noise whose sound level changes over time by no more than 5 dB(A) during measurements on the "slow" time characteristic
Source: "Interstate Sanitary Rules and Norms 001-96. Sanitary norms of permissible levels of physical factors when using consumer goods in household conditions. Interstate sanitary rules and norms." (approved by Order No. 2 of the State Sanitary and Epidemiological Surveillance Committee of Russia dated January 19, 1996, Order No. 9-29-95 of the Ministry of Health of the Republic of Belarus dated June 8, 1995) (with amendments dated December 21, 1999)
Понятие «шум постоянный» мужского рода.
| Падеж | Единственное число | Множественное число |
|---|---|---|
| Р | шума постоянного | шумов постоянных |
| Д | шуму постоянному | шумам постоянным |
| В | шум постоянный | шумы постоянные |
| Т | шумом постоянным | шумами постоянными |
| П | шуме постоянном | шумах постоянных |