Answer:
A. Examples of laboratory hazards:
In general, there are three types of hazards personnel may encounter while working in laboratories at the NIH.
Possible hazards include:
• Biological Hazards – bloodborne pathogens
• Chemical Hazards – carcinogenic, flammable, or corrosive materials
• Physical Hazards – pyrophoric materials, lasers or radiation.
It is possible, even common, for a single laboratory to have types of hazards associated with more than one of
these categories at once. Engineering controls should be used as primary barriers, functioning to contain the
hazards. Personal protective equipment (PPE) should be used in combination with engineering controls to
reduce the risk of worker exposure to laboratory hazards. A risk assessment should be used to determine the
hazards associated with a particular laboratory or laboratory operation, and establishing which engineering
controls should be utilized and what PPE should be selected. Information on how to perform a risk assessment
is described in Biosafety in Microbiological and Biomedical Laboratories 5th Edition. For assistance with
performing a risk assessment and selecting proper PPE, please contact your Institute's Safety and Health
Specialist, or the Division of Occupational Health and Safety.
B. Appropriate laboratory attire, laboratory coats and applicable standards:
While in a laboratory at the NIH for any reason, all personnel must wear appropriate clothing attire that prevents
direct contact of materials with the skin. Examples of attire that is appropriate includes long pants or leg
coverings and closed toe shoes. In addition, a task appropriate laboratory coat, as determined by a risk
assessment, must be worn while performing laboratory operations. Following a thorough risk assessment,
guidance to the selection of laboratory coats can be obtained from Tables 1 and 2. Table 1 lists the three types
of laboratory hazards and the applicable laboratory coat material standards. Table 2 provides a more detailed
description on the application of these standards and examples of laboratory coats that meet these standards.
Table 1. Summary of laboratory hazards and applicable test standards
Type of Laboratory Hazard Applicable Test standard
Biological Hazards ASTM F1670 (penetration by synthetic blood) and
ASTM F1671 (bloodborne pathogen exposure)
Liquid or Chemical Hazards AATCC Method 42 (resistance to the penetration of
water by impact) and ASTM F903 (liquid chemical
barrier)
Physical Hazards NFPA 701 or 2112 (flame propagation tests)
The standards listed in Table 2 serve as standardized testing methods to determine protection levels of materials
against certain hazardous or hazard surrogates. These standards should be considered when selecting a
laboratory coat material when working with the hazards that correspond to the applicable hazard or hazard
surrogate tested. These testing methods only test the material and do not test the complete laboratory coat
making it important to consider characteristics of the laboratory coat such as seams, stitches and where the
openings, snaps or buttons are located when selecting a laboratory coat. A complete description of the
standards can be viewed by contacting your Institute's Safety and Health Specialist,
Explanation:
Please help me with this!
Answer:
Homzygous
Explanation:
Which level of organization encompasses the others?
A.
Cells
B.
Tissues
C.
Organs
D.
Organ Systems
Answer:d
Explanation: because it encompasses all other levels if you see
LOOK AT THE QUESTION ON TOP AND EXPLAIN WHY IS THAT SOLUTION NEEDED
i need helps with this assignment im trying to get caught up because its been a weird school year
Where are fats, carbohydrates, and proteins broken down into particles small enough to be absorbed into the body?
Hint: These enzyme-rich juices break the fat molecules down into fatty acids
and glycerol for easier absorption into the body.
The enzymes also carry out the final deconstruction
of proteins into amino acids
and carbohydrates into glucose.
This happens in the small intestine's lower regions,
the jejunum and ileum,
which are coated in millions of tiny projections called villi.
Options:in the stomach
in the illium
in the duodenum
in the jejunum
Answer:
Duodenum (option 3)
Explanation:
Digestion of carbohydrates, proteins, and fats continues in the small intestine. Starch and glycogen are broken down into maltose by small intestine enzymes. Proteases are enzymes secreted by the pancreas that continue the breakdown of protein into small peptide fragments and amino acids.
The duodenum is the first section of the small intestine and is the shortest part of the small intestine. It is where most chemical digestion using enzymes takes place
Please write a poem. Will give brainilist.
Screenshot with instructions attached.
No links or jokes cause i actually need help.
Answer: here is my poem
Love
love. I am living a reality or is it just my imagination.
It feels too good to be real, I felt so much affection.
You look so perfect and with so much determination.
I met you at a coffee shop and we ended up with a prolonged conversation.
We have such an effective communication.
After 2 years you asked me to marry you, I felt as if I was in a magnification
Some time passed and we had our confrontation.
You cheated on me and I realized that the guy that I loved lived in my imagination.
Explanation: