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hazard awareness > hazard > Flashcards

hazard Flashcards

1
Q

Pursuant to the RA 6969, DAO 2015-09 issued by DENR presents the guidelines on proper labelling, storage and management of hazardous substances.

A

GLOBALLY HARMONIZED SYSTEM (GHS)

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2
Q

Standardized symbols for labelling hazardous chemical substances.

A

GHS pictograms

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3
Q

Technical documents that contain all information about a certain material related to its health effects upon exposure, hazard and storage handling, precautionary measures, and emergency procedures

A

Safety Data Sheets (SDS)

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4
Q

gives specifications for a standard systern for the assigning and identification of the health, flammability, and
reactivity hazards of materials under emergency conditions such as spills, leaks, and fires.

A

NFPA Hazard Signal

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5
Q

can be ignited at concentrations less than their lower flammable limits and at temp below their flash point

A

Flammable liquids

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6
Q

lowest temp, at 1 atm, at which liquid releases flammable vapor into the atmosphere

A

Flash point

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7
Q

manual fire-extinguishing equipment.

A

Fire extinguishers

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8
Q

Required type of fire extinguisher for Fires involving ordinary combustible solid materials such as wood, paper, rubber, plastic. cloth

A

Water type
Multipurpose dry chemical type
Wet chemical tvpe

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9
Q

Required type of fire extinguisher for Fires in flammable and combustible llquid and gas (surface fire)

A

Aqueous film-foaming foam (AFFF)
Film-foaming fluoroprotein foam (FFFP)
Carbon dioxide; dry chemical type

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10
Q

Required type of fire extinguisher for Fires involving energized electrical equipment (electrical fire)

A

Dry chemical type
HCFC type

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11
Q

Required type of fire extinguisher for Fires involving combustible metals such as
aluminum, magnesium, sodium, titanium

A

Dry powder

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12
Q

Required type of fire extinguisher for Kitchen fire

A

Kitchen extinguisher

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13
Q

Color Designation for Dry chemical (ABC)

A

Red body, white band

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14
Q

Color Designation for Carbon monoxide

A

Red body, black band

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15
Q

Color Designation for Foam

A

Red body, blue band

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16
Q

Color Designation for Halon substitute

A

Light green body, white band

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17
Q

arise from the highly ,reactive nature of chemicals in which in the presence of a stimulus, may cause sudden increase in temperature or explosion.

A

Reactive hazards

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18
Q

materials that react violently with water

A

Water reactive substances

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19
Q

materials that ignite due to rapid oxidation by oxygen or moisture in the air

A

Pyrophoric substances

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20
Q

include gases which are contained in a receptacle at a pressure of 200kPa (gauge) or more at 20oC, or which are liquefied or liquefied and refrigerated.

A

Gases under pressure

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21
Q

arise from explosion due to rapid expansion or evolution of gases usually in a closed or restricted system

A

Explosion hazards

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22
Q

which poses explosion hazards, are reactions that result in sudden, rapid rise in temperature of the material that is being heated which may
become violent.

A

Runaway reactions

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23
Q

hazardous substances that enters the body thru absorption. injection, ingestion or inhalation.

A

Toxic substances

24
Q

chemical agents that cause undesirable response of tissues upon contact or exposure.

A

lrritants

25
Q

cause depletion of oxygen to the tissues.

A

Asphyxiants

26
Q

mainly affect the central nervous system by inducing depressant effects.

A

Narcotics or anesthetics

27
Q

agents that cause toxic action mainly on the internal organs

A

Systemic poisons

28
Q

chemical agents that may cause cancer to exposed individual.

A

Carcinogens

29
Q

chemical agents that affect the cells of the person upon exposure that may lead into cancer or undesirable mutation to take place on later generation.

A

Mutagens

30
Q

agents that cause birth defects upon exposure of the pregnant woman.

A

Teratogens

31
Q

agents that cause allergic or allergic-like reactions.

A

Sensitizers

32
Q

solid particles of a substance or mixture suspended in a gas (usualty air)

A

Dust

33
Q

liquid droplets of a substance or mixture suspended in a gas (usually air)

A

Mist

34
Q

gaseous form of a substance or mixture released from its liquid or solid state.

A

Vapor

35
Q

important consideration for manufacturing industries that releases chemicals with potential hazards to the environment.

A

ENVIRONMENTAL HAZARDS

36
Q

the extent to which a substance is taken up by an organism and distributed to an area within the organism.

A

Bioavailability

37
Q

the net result of uptake, transformation, and elimination of a substance in an organism due to all routes of exposure

A

Bioaccumulation

38
Q

the net result of uptake, transformation, and elimination of a substance in an organism due to waterborne exposure

A

Bioconcentration

39
Q

involve accidental release of hazardous solid materials.

A

SOLID CHEMICAL SPILLS

40
Q

accidental spill of liquid materials that are potentially hazardous.

A

LIQUID CHEMICAL SPILLS

41
Q

most commonly used absorbents for chemical spills

A

Spill pillows

42
Q

treated with soda ash (NazCOs) to neutralize the acid spills.

A

Acid solution spills

43
Q

treated with citric acid or dilute hydrochloric acid to neutralize the base spills.

A

Alkali solution spills

44
Q

tend to be organic chemicals and insoluble in water

A

VOLATILE AND FLAMMABLE SOLVENT SPILLS

45
Q

especially hazardous due to the high toxicity of mercury vapor.

A

MERCURY SPILLS

46
Q

design of products and processes that lessen or more desirably eliminate the use and production of hazardous substance

A

green chemistry

47
Q

Unnecessary waste generated from the laboratory can be prevented by careful chemical managemen

A

Prevent waste

48
Q

Working with small amount of chemicals is another great way of reducing the potential hazards for a laboratory experiment (microscale)

A

Microscale work and wet chemistry elimination

49
Q

Chemical laboratories are safer when they substitute non-hazardous, or less hazardous

A

Use of safer solvents and other materials

50
Q

Careful plan of the experiment routes that would render the products and byproducts safe or less hazardous

A

Design experimental products for degradation after use

51
Q

Thermometers and manometers are the most common laboratory uses of elementary mercur

A

Mercury replacements in the laboratory

52
Q

must be carefully planned to prevent wastage of chemicals in the laboratories.

A

ACQUISITION OF CHEMICALS

53
Q

should not be determined by the cheaper unit price basis
of large quantities but rather by the amount needed for the experiment.

A

Chemical orders/purchases

54
Q

is a record (usually a database), which in some cases is a required document for regulatory compliance, that lists the chemicals in the laboratory

A

chemical inventory

55
Q

important component to a laboratory safety program. lmproper practice of chemical storage may result in accidents due to undesired reactions from contaminations.

A

STORAGE OF CHEMICALS

56
Q

important and safe practice of chemical storage. Chemicals must be stored in terms of their compatibility and hazard classification.

A

Segregating hazardous chemicals

57
Q

Types of containers that will be used to store the chemicals in the laboratories must be compatible also with the class of chemical to prevent degradation or unwanted reaction/contamination.

A

Containers and equipment

hazard awareness (2 decks)

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