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Class 6 Packing Groups and Hazard Zones The packing group of Division 6.1 materials shall be as assigned in Column 5 of the 49CFR 172.101 Table. When the 49CFR 172.101 Table provides more than one packing group or hazard zone for a hazardous material, the packing group and hazard zone shall be determined by applying the following criteria: 1.
Perfluorooctanoic acid (PFOA; conjugate base perfluorooctanoate; also known colloquially as C8, for its 8-carbon chain structure) is a perfluorinated carboxylic acid produced and used worldwide as an industrial surfactant in chemical processes and as a material feedstock.
Materials that may form explosive mixtures with water and are capable of detonation or explosive reaction in the presence of a strong initiating source. Materials may polymerize, decompose, self-react, or undergo other chemical change at normal temperature and pressure with moderate risk of explosion (e.g., ammonium nitrate). 2.
a signal word – either Danger or Warning – where necessary; hazard statements, indicating the nature and degree of the risks posed by the product; the identity of the supplier (who might be a manufacturer or importer) Each precautionary statement is designated a code, starting with the letter P and followed by three digits.
Skeletal structure of PFOS, an effective, persistent and bioaccumulative fluorosurfactant A physical sample of PFOA, appearing as a white solid as seen here in a relatively pure form. It is commonly referred to as the main harmful PFAS chemical and PFOA is responsible for many of the negative health effects commonly associated with PFAS.
a signal word – either Danger or Warning – where necessary; precautionary statements, indicating how the product should be handled to minimize risks to the user (as well as to other people and the general environment) the identity of the supplier (who might be a manufacturer or importer).
Danger: Hazard statements. H314: ... like PFOA, up to 44 times ... [6] Its placing on the market and use will be restricted in the EEA by 2026. [7] References
However, in a December 2005 deal with the USEPA over alleged withholdings, DuPont agreed to test nine of its fluorotelomer-based products' potential to break down into PFOA by 27 December 2008. [17] Yet, in late December 2008, the USEPA and DuPont filed a joint motion stating that DuPont needed additional time [17] to purify the products. [7]