UNIROYAL ROYALENE 556
Not considered a hazardous substance according to OSHA 29 CFR 1910.1200.
Flammability | 1 | |
Toxicity | 1 | |
Body Contact | 0 | |
Reactivity | 0 | |
Chronic | 0 | |
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4 |
Synthetic polymer.
[C9H12.C3H6.C2H4]x, EPDM, "bicyclo[2.2.1]hept-2-ene, 5-ethylidene-, polymer with ethene
and 1-propene", "bicyclo[2.2.1]hept-2-ene, 5-ethylidene-, polymer with ethene and 1-
propene", "ethylene propylene rubber", "ethylene-propylene ethylidene norbornene rubber",
polyolefin, 556J, 556@
None
Although ingestion is not thought to produce harmful effects, the material may still be damaging to the health of the individual following ingestion, especially where pre- existing organ (e.g. liver, kidney) damage is evident. Present definitions of harmful or toxic substances are generally based on doses producing mortality (death) rather than those producing morbidity (disease, ill-health). Gastrointestinal tract discomfort may produce nausea and vomiting. In an occupational setting however, ingestion of insignificant quantities is not thought to be cause for concern. Considered an unlikely route of entry in commercial/industrial environments. High molecular weight material; on single acute exposure would be expected to pass through gastrointestinal tract with little change / absorption. Occasionally accumulation of the solid material within the alimentary tract may result in formation of a bezoar (concretion), producing discomfort.
Although the material is not thought to be an irritant, direct contact with the eye may produce transient discomfort characterized by tearing or conjunctival redness (as with windburn).
The material is not thought to produce adverse health effects or skin irritation following contact (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable gloves be used in an occupational setting.
The material is not thought to produce adverse health effects or irritation of the respiratory tract (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable control measures be used in an occupational setting. Persons with impaired respiratory function, airway diseases and conditions such as emphysema or chronic bronchitis, may incur further disability if excessive concentrations of particulate are inhaled. Processing for an overly long time or processing at overly high temperatures may cause generation and release of highly irritating vapors, which irritate eyes, nose, throat, causing red itching eyes, coughing, sore throat.
Principal routes of exposure are usually by skin contact/absorption and inhalation of generated dust. This material contains a substantial amount of polymer considered to be of low concern. These are classified under having MWs of between 1000 to 10000 with less than 25% of molecules with MWS under 1000 and less than 10% under 500; or having a molecular weight average of over 10000. Functional groups contained on the polymer are then classified into risk categories. Being classified as a polymer of "low concern" does not mean that there are no hazards associated with the chemical.