Are Safety Data Sheets meant to correlate with the hazard designations and levels spelled out in NFPA 704?
Buildings under consideration: Electrical substation, emergency generator building
They should but sometimes do not.
I would say it is because you do not know what all chemicals a maker will throw together, so it can change the hazards of a product.
Would it be recommended, then, to contact the manufacturer of a product when it is received to confirm what level to set the NFPA 704 placard to?
Yes that is the best source, but on some not all MSDS the 704 is on there, and you can go by that.
You just have to have the specific MSDS for that chemical, and from the maker of that chemical.
Just do not do a internet search say for acid, and use the first one that comes up.
Here is one on propane, that shows the 704 ratings
The short answer is No, they were not created to correlate with the NFPA 704 designation levels. Excerpt added below.
GHS hazard classifications and categories are NOT similar to or based off of the HMIS III & NFPA 704 rating systems, and are used in a different manner than these more familiar hazard rating systems.
GHS categories are configured along the lines of the U.S. Department of Transportation (DOT) shipping & transportation classifications for hazardous materials. These are also organized into a category rating of 1 (most dangerous) to 5 (least dangerous), which is opposite of the familiar HMIS & NFPA 704 rating systems.
Also just pulled these "legal disclaimers" off of a propane SDS that basically states that the individual user is responsible for assigning the 704 rating. Mainly because of the flip flop scale. Just have to be careful.
Caution: HMIS® ratings are based on a 0-4 rating scale, with 0 representing minimal hazards or risks, and 4representing significant hazards or risks Although HMIS® ratings are not required on SDSs under 29 CFR 1910.1200, the preparer may choose to provide them. HMIS® ratings are to be used with a fully implemented HMIS®program.
Reprinted with permission from NFPA 704-2001, Identification of the Hazards of Materials for EmergencyResponse Copyright ©1997, National Fire Protection Association, Quincy, MA 02269. This reprinted material isnot the complete and official position of the National Fire Protection Association, on the referenced subjectwhich is represented only by the standard in its entirety.
Copyright ©2001, National Fire Protection Association, Quincy, MA 02269. This warning system is intended tobe interpreted and applied only by properly trained individuals to identify fire, health and reactivity hazards ofchemicals. The user is referred to certain limited number of chemicals with recommended classifications inNFPA 49 and NFPA 325, which would be used as a guideline only. Whether the chemicals are classified by NFPAor not, anyone using the 704 systems to classify chemicals does so at their own risk.
Thank you for the reply. If the manufacturer’s SDS does not provide the NFPA 704 category, then is it routine to contact the manufacturer for this information? Is there a listing of products and their respective categories?
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Would contact the maker if that manufacturer does not put the 704 on the msds.
You cannot use another manufacturer's msds.
The other source is the supplier, if they are the middle person, they are supposed to have the info!!!!!!!!!!!!!!!
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