OSHA 30 Construction Health Hazards in Construction Flashcards
what are the two types of reactions to chemical hazards
ACUTE (IMMEDIATE)
CHRONIC(SLOWLY DEVELOPING AND LONG LASTING)
were can you fin d info on the safety of a chemical
on the data sheet
what is the OSHA ruling when working with crystallin silica
reduce PEL to 50 micro grams per cubic meter of air over a length of 8 hours
what are the OSHA requirements for working with lead
workers can no exceed 50 micro grams of lead per cubic meter of air over 8 hours
what is the most common form of silica
quartz
what is does the OSHA standard for hazard communication do
helps define the classification
and information need to transport and for chemicals
what is the GHS
the system for standardizing and harmonizing the classification and labeling of chemicals
Is the GHS a standard or a highly suggested guideline
a guideline
What are the GHS hazard categories
PHYISCAL
CHEMICAL
ENVIROMENTAL
SINGLE EXPOSURE ABOVE WHAT decibel can cause hearing loss
115
what are the two types of vibration
whole body
hand/arm vibration
the best hearing protection is provided by what
this depends on the NRR noise reduction rating of the device
what are the three factors that can protect you from radiating
time distance radiation
were can the OSHA respirable crystalline silica for construction standards be found
in 29 CFR 1926
what is the osha limit for breathable crystalline silica and where can it be seen
The limit is 25micro grams per cubic meter of air over an 8 hour average
in 28 CFR 1926.1153
what are the some possible side effects from breathing in crystalline silica ?
Silicosis An irreversible lung disease that causes scarring and stiffening. Silicosis can lead to disability and death
Lung cancer
Chronic obstructive pulmonary disease (COPD)
Kidney disease
what are the categories of sillicosis
chronic occurs after 15-20 years
accelerated occurs after 5-10 years
acute occurs after a few months to 2 years
what is the best option for fighting dust emission on site
wet methods that cause dust to clump together and prevent it from being airborn
when must fit tests be provided for respirators
every 12 months
APF 10 are
less protective respirators
Apf 25 are
more full body and more protective
fans should only used as
supplemental methods for remove dust contaminants
were should us saws to prevent dust
outdoors
When using saws of 8 inches or less what must the saw include
dust collectors with a filter of 99% or greater efficiency
which saws use a wet method as a control
masonry
handheld with larger the 8 inches in diameter
walk behind saws
drivable saws that are outdoors
rig mounted saws
when using grinders what kind of filter must you have
a pre-separator or filter-cleaning mechanism
for working outdoors what should be used for dust control with a grinder
water controls
what is the o0nly equipment that requires an APF 25 respirator for more then 4 hours
handheld grinder for mortar removal
should you use a water system for a walk-behind milling machine
yes
does hand held grinding for mortars us a wet method
no
what piece of equipment does not have added control requirements beyond wet methods and dust collection
handheld grinders
When is an employer required to notify the employee of they results of a monitoring assessment
five days
