Characteritics of Airborne Contaminants
Solid particles formed by mechanical disintegration of a parent material (crushing, grinding, etc.).
What is dust?
This location is the best place to sample for airborne contaminants in order to compare to the OELs.
What is the breathing zone?
This type of ventilation is used to control less hazardous exposures and to provide conditioned air.
What is dilution ventilation?
These respirators cannot be used in atmospheres that are immediately dangerous to life or health (IDLH).
What are Air-Purifying Respirators?
These intentionally produced, manufactured, synthesized, or manipulated particles are defined as being less than 100 nm in at least one dimension.
Engineered Nanomaterials
A volatile form of substances that are normally in the solid or liquid state at room temperature and pressure. A type of gas.
What are vapors?
Large particles fall to the grit pot at the bottom of this type of sampling device.
What is a cyclone?
This type of ventilation is good for more hazardous contaminants because it removes the hazard at or near the source.
What is Local Exhaust Ventilation?
These respirators are reusable and often have a hood or helmet that covers the nose, mouth, and eyes. A battery-powered blower pulls air through filters or cartridges.
What are Powered Air Purifying Respirators (PAPRs)?
There are three primary methods of compliance with the new Emergency Temporary Silica Standard. They are:
Properly handle all waste materials.
Monitor air to confirm respirable crystalline silica levels are below the action level.
And this missing one.
What is “Use wet methods without exception”?
Small particles that deposit in gas-exchange region of the human lung.
What are respirable particles?
These are collection-media analyzed to explore issues of unwanted sample contamination.
What are blanks?
Daily Double! - $600 question
Implementing cooling supplied air to reduce heat from 3D printer also decreases emissions of this air contaminant.
What are nanoparticles?
Labor Code 6709 (2020) requires that this employers in this sector must train workers on Valley Fever prevention in counties where Valley Fever is highly endemic including but not limited to including, but not limited to, the Counties of Fresno, Kern, Kings, Madera, Merced, Monterey, San Joaquin, San Luis Obispo, Santa Barbara, Tulare, and Ventura.
What is construction?
This is the lowest liquid temperature where the liquid releases sufficient vapor to form an ignitable mixture with air.
What is the flash point?
The back part of sampling sorbent tubes is used to evaluate this phenomenon.
What is "breakthrough"?
The appropriate way to do this is to divide the areas into imaginary rectangles and take a measurement at the center of each rectangle.
What is face velocity?
This is the only fit test used for negative pressure air-purifying respirators.
What is qualitative fit test?
When sampling for Silver Nanoparticles for the NIOSH REL, you must collected what pair of samples?
What are Paired Samples in the worker’s breathing zone and in the background?
These extremely fine solid particles are formed from the condensation of vapors emitted from molten substances (typically metal).
What are fumes?
Safe use of this type of instrument requires three things:
knowledge of the contaminant identity
calibration to the worksite contaminant or use of the appropriate correction factor
determination that other responding contaminants are absent
What are quantitative but non-specific direct reading instruments. Examples include: PID, FID, DustTrak
A decrease in this measurement could indicate a problem with a fan belt, wear of fan blade, or dust on fan blades.
What is Static Pressure (SP)?
These supplied-air respirator are equipped with additional devices designed to protect the wearer’s head and neck against impact and abrasion from rebounding abrasive material.
What is a Type CE Airline Respirator?
This type of respirator is required during Emergency Response?
What is a full-face, tight-fitting, powered air-purifying respirator (PAPR), or equally protective alternative.