What is PEL and IDLH?
IDLH: immediately dangerous to life and health (level that interferes with the ability to escape) (NIOSH) PEL: permissible exposure limit (enforceable) (OSHA)
What do PEL and STEL refer to?
Permissible exposure limit (PEL) is a regulatory limit on the amount or concentration of a substance in the air. This is usually based on an eight-hour time weighted average (TWA), although some are based on short-term exposure limits (STEL). Workplace environmental exposure limit (WEEL) may be expressed as TWA.
What is methylnaphthalene used for?
In the United States, 2-methylnaphthalene is used for making detergents, dyes, solvents, as well as vitamin K. 2-methylnapthalene is also used to make some pesticides, or as an additional ingredient in some pesticides.
What is IDLH OSHA?
IDLH or Immediately dangerous to life or health means an atmospheric concentration of any toxic, corrosive or asphyxiant substance that poses an immediate threat to life or would cause irreversible or delayed adverse health effects or would interfere with an individual’s ability to escape from a dangerous atmosphere.
How is IDLH measured?
How are IDLH values chosen? As of their most recent revision in 1994, more than 380 substances currently have IDLH values. NIOSH calculates the values using the LD50 or LC50, which are the measures for the doses or concentrations that it would take to kill half the members of a tested population.
What does PEL stand for?
Permissible Exposure Limit
A Permissible Exposure Limit (PEL) is the maximum amount or concentration of a chemical that a worker may be exposed to under OSHA regulations.
What is a PEL TWA?
The 8-hour TWA PEL is the level of exposure established as the highest level of exposure an employee may be exposed to without incurring the risk of adverse health effects.
Is 2-methylnaphthalene a PAH?
2-Methylnaphthalene is a polycyclic aromatic hydrocarbon (PAH).
What is another name for 1-methylnaphthalene?
1-Methylnaphthalene
| PubChem CID | 7002 |
|---|---|
| Structure | Find Similar Structures |
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C11H10 |
| Synonyms | 1-METHYLNAPHTHALENE 90-12-0 METHYLNAPHTHALENE alpha-Methylnaphthalene 1321-94-4 More… |
What is an OSHA PEL?
OSHA sets permissible exposure limits (PELs) to protect workers against the health effects of exposure to hazardous substances. PELs are regulatory limits on the amount or concentration of a substance in the air. They may also contain a skin designation. PELs are enforceable.
What is an OSHA STEL?
OSHA short-term exposure limits (STELs) are the legal maximum average exposure for a 15-minute time period. Some chemicals also have an OSHA ceiling value that represent levels that must not be exceeded at any time.
What is TLV OSHA?
Threshold Limit Values (TLVs®) refer to airborne concentrations of chemical substances and represent conditions under which it is believed that nearly all workers may be repeatedly exposed, day after day, over a working lifetime, without adverse effects.
Is 1 methylnaphthalene a PAH?
Four target analytes (naphthalene, 1-methylnaphthalene, 2-methylnaphthalene, and acenaphthylene) have been reported as target volatiles that can be readily utilized for time estimation based on the rate of escape of these PAH compounds from the firearm barrel.
Is 2-methylnaphthalene toxic?
The International Agency for Research on Cancer (IARC) concluded that naphthalene is possibly carcinogenic to humans. The EPA determined that naphthalene is a possible human carcinogen (Group C) and that the data are inadequate to assess the human carcinogenic potential of 2-methylnaphthalene.
What is c1 naphthalene?
Naphthalene is an organic compound with formula C. 10H. 8. . It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass.