NFPA 704: განსხვავება გადახედვებს შორის

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* {{cite web|url=http://chemlabs.uoregon.edu/Safety/NFPA.html|title=Safety in the Chemistry Laboratory: NFPA 704 Hazard Identification System|publisher=[[University of Oregon]]|archiveurl=https://web.archive.org/web/20150310145104/http://chemlabs.uoregon.edu/Safety/NFPA.html|archivedate=2015-03-10}}

 

 

[[კატეგორია:NFPA Standards]]