Skip to main content

Table 3 Results of risk assessment with “Stoffenmanager.Nano”

From: Ultrafine particles in scanning sprays: a standardized examination of five powders used for dental reconstruction

Product Nano component hc ec time Risk time ec task Risk task
Spray A pentane B 1 III 1 III
Spray B talc B 2 III 2 III
naphta D 2 II 2 II
lemon oil C 1 III 2 II
Spray C pentane B 1 III 1 III
Spray D titanium dioxide D 2 II 3 I
zirconium dioxide D 2 II 3 I
zinc distereate C 2 II 2 II
isobutane (propellant) A 2 III 3 III
Spray E titanium dioxide D 2 II 3 I
zirconium dioxide D 2 II 3 I
zinc distereate C 2 II 2 II
silicium dioxide D 1 II 2 II
  1. hc Hazard class: class A -least hazardous to class E - most hazardous substances
  2. ec Time (exposure class time): class 1 - lowest exposure, class 4 – highest exposure
  3. risk time: risk score III - low risk, risk score I - high risk. ec task (exposure class task): class 1 - lowest exposure, class 4 - highest exposure
  4. risk task (−weighted): risk score III - low risk, risk score I - high risk. (for further explanation, please see Methods section)