Materials Handling, Storage, and Waste Disposal These handouts and documents with attachments are...

Materials Handling, Materials Handling, Storage, and Waste DisposalStorage, and Waste Disposal

These handouts and documents with attachments are not final, complete, or definitive instruments. This These handouts and documents with attachments are not final, complete, or definitive instruments. This information is for guidance purposes only. You should independently verify and satisfy yourself as to its information is for guidance purposes only. You should independently verify and satisfy yourself as to its accuracy. The AHBSIF does not assume any liability for damages arising from the use of this information accuracy. The AHBSIF does not assume any liability for damages arising from the use of this information

or exhibits and attachments thereto and renders no opinion that any of the terms, conditions, and/or cited or exhibits and attachments thereto and renders no opinion that any of the terms, conditions, and/or cited federal standards in this document and the exhibits and attachments should be explicitly followed by the federal standards in this document and the exhibits and attachments should be explicitly followed by the

fund member. Seek specific guidance from the appropriate regulator (OSHA) or professional advisor.fund member. Seek specific guidance from the appropriate regulator (OSHA) or professional advisor.

General Requirements For Manual General Requirements For Manual HandlingHandling

► Employees should seek help when: Employees should seek help when: A load is so bulky it cannot be properly grasped A load is so bulky it cannot be properly grasped

or liftedor lifted An employee can’t see around or over itAn employee can’t see around or over it A load cannot be safely handled.A load cannot be safely handled.

► Personal Protective equipment is an integral Personal Protective equipment is an integral part of safe handling procedures. part of safe handling procedures. Boots with sturdy solesBoots with sturdy soles GlovesGloves Forearm ProtectionForearm Protection Safety GlassesSafety Glasses

Manual Handling - Back Injury Manual Handling - Back Injury FactsFacts

►There are approximately 700,000 There are approximately 700,000 back-related injuries in the United back-related injuries in the United States each year. States each year.

►Back injuries comprised 32% of all Back injuries comprised 32% of all injuries reported, but consumed injuries reported, but consumed more than 40% of all workers' more than 40% of all workers' compensation dollars. compensation dollars.

►Because they are often slow to heal Because they are often slow to heal and are likely to reoccur, back and are likely to reoccur, back injuries are a costly injury. injuries are a costly injury.

The NIOSH Lifting EquationThe NIOSH Lifting Equation

► NIOSH – National Institute for Occupational NIOSH – National Institute for Occupational Safety and HealthSafety and Health

► Created a formula for evaluating on-the-job Created a formula for evaluating on-the-job lifting taskslifting tasks

► The equation establishes an “RWL” or The equation establishes an “RWL” or Recommended Weight Limit for the Recommended Weight Limit for the individual employee/taskindividual employee/task

► ( RWL = LC x HM x VM x DM x AM x FM x CM ( RWL = LC x HM x VM x DM x AM x FM x CM ))

Components of the EquationComponents of the Equation► LC (Load Constant)LC (Load Constant) – Usually 51 lbs – Usually 51 lbs► HM (Horizontal Multiplier)HM (Horizontal Multiplier) – The distance of – The distance of

the hands from the midpoint of the body (10 to the hands from the midpoint of the body (10 to 25 in)25 in)

► VM (Vertical Multiplier)VM (Vertical Multiplier) – vertical distance – vertical distance from hands to floor (0 to 70 in)from hands to floor (0 to 70 in)

► DM (Distance Multiplier)DM (Distance Multiplier) – vertical distance of – vertical distance of lift from start to finish (10 to 70 in)lift from start to finish (10 to 70 in)

► AM (Asymmetric Multiplier)AM (Asymmetric Multiplier) – measured angle – measured angle of twist of the lift from start to finish (0° to 135°)of twist of the lift from start to finish (0° to 135°)

► FM (Frequency Multiplier)FM (Frequency Multiplier) – lifts per minute – lifts per minute► CM (Coupling Multiplier)CM (Coupling Multiplier) – ease of grasping the – ease of grasping the

load (rated as GOOD, FAIR, or POOR)load (rated as GOOD, FAIR, or POOR)

Using the EquationUsing the Equation

►Once the RWL is determined, the Once the RWL is determined, the LI LI (Lifting Index)(Lifting Index) is used; is used; LI = Load Weight/RWLLI = Load Weight/RWL

► If the Lifting Index is at or above 1.0, If the Lifting Index is at or above 1.0, the lifting task should be redesignedthe lifting task should be redesigned

►What factors can help create an easier What factors can help create an easier lifting task?lifting task?

Mechanics of Proper LiftingMechanics of Proper Lifting

► The following slides will demonstrate the The following slides will demonstrate the basics of proper lifting techniquebasics of proper lifting technique

► Don’t forget these basics;Don’t forget these basics; Warming up before attempting to lift is good Warming up before attempting to lift is good

practice, don’t be afraid to get your blood practice, don’t be afraid to get your blood flowing with some simple stretches.flowing with some simple stretches.

There is no shame in the buddy system, get help There is no shame in the buddy system, get help if you think you’ll need it!if you think you’ll need it!

If management has provided equipment for If management has provided equipment for helping you lift something, use it. Never take a helping you lift something, use it. Never take a short cut or put yourself in an unsafe position short cut or put yourself in an unsafe position with a load.with a load.

- Establish a - Establish a solid basesolid base

- Bend your - Bend your kneesknees

- Position - Position yourself close yourself close

to the loadto the load - Lift with - Lift with your legsyour legs

-Complete the -Complete the lift before lift before twisting or twisting or

turningturning

General Requirements For General Requirements For Mechanical HandlingMechanical Handling

► When moving materials avoid When moving materials avoid overloading, consider the overloading, consider the weight, size, and shape of the weight, size, and shape of the materialmaterial

► Equipment capacity ratings must Equipment capacity ratings must be displayed on each piece of be displayed on each piece of equipment and must not be equipment and must not be exceeded.exceeded.

► Follow safe lifting procedures for Follow safe lifting procedures for the specific machinery in usethe specific machinery in use

► OSHA requires that all machine OSHA requires that all machine operators are trained.operators are trained.

ForkliftsForklifts

►NIOSH Fatality StatisticsNIOSH Fatality Statistics Average age of a fatally injured worker was Average age of a fatally injured worker was

3838 The largest proportion of fatalities occurred The largest proportion of fatalities occurred

to workers in manufacturing followed by to workers in manufacturing followed by transportation, communication and public transportation, communication and public utilities. utilities.

Three most common causes of fatalitiesThree most common causes of fatalities►forklift overturn (operator not restrained) forklift overturn (operator not restrained) ►pedestrians struck by forkliftpedestrians struck by forklift►workers crushed by forklift workers crushed by forklift

ForkliftsForklifts

► Operator training was Operator training was made mandatory for all made mandatory for all industries as of March 1, industries as of March 1, 1999.1999.

► Employer must train Employer must train operators using federal operators using federal guidelines for certification.guidelines for certification.

► Equipment that was Equipment that was designed to move earth but designed to move earth but will accept forks is not will accept forks is not covered, nor are over the covered, nor are over the road haulage trucks. road haulage trucks.

Which machine falls under Which machine falls under 1926.602(d) ?1926.602(d) ?

Exempt Exempt Not ExemptNot Exempt

ForkliftsForklifts

Training must incorporate the following subject Training must incorporate the following subject mattermatter::

Familiarization with the MachineFamiliarization with the Machine Understanding the basics of stability Understanding the basics of stability Understanding the forces that cause tip-overUnderstanding the forces that cause tip-over

Vehicle InspectionVehicle Inspection Vehicle OperationVehicle Operation Load HandlingLoad Handling Power SourcePower Source

LPG Handling and UseLPG Handling and Use Battery ChargingBattery Charging

Hands-On TrainingHands-On Training

ForkliftsForklifts Refresher Training must be Refresher Training must be

provided when:provided when: An operator has an incident or An operator has an incident or

near-miss incidentnear-miss incident An operator is asked to run a An operator is asked to run a

different type of truckdifferent type of truck The operator has been evaluated The operator has been evaluated

as not operating in a safe manneras not operating in a safe manner Training records must be kept Training records must be kept

on file after the date of on file after the date of completion for at least three completion for at least three yearsyears

Operators are not subject to Operators are not subject to fitness testsfitness tests

OSHA does not require OSHA does not require certification cardscertification cards

Mobile CranesMobile Cranes


► InspectionInspection

► OSHA requires all mobile cranes to be OSHA requires all mobile cranes to be inspected regularly.inspected regularly.

► A pre-operational (frequent) inspection A pre-operational (frequent) inspection must be made by a competent person must be made by a competent person before each use of the crane.before each use of the crane.

► OSHA also requires a monthly OSHA also requires a monthly inspection of critical items and a inspection of critical items and a thorough inspection of the entire crane thorough inspection of the entire crane at least annually.at least annually.

► Stand-by cranes must also be inspected Stand-by cranes must also be inspected to a pre-operational level at least every to a pre-operational level at least every six months.six months.



► In accordance with federal regulations and the manufacturer’s In accordance with federal regulations and the manufacturer’s guidelines, the following items must be inspected at guidelines, the following items must be inspected at minimum;minimum;

Wire rope and Wire rope and reevingreeving

Electrical equipmentElectrical equipment

All operational aidsAll operational aids Control mechanismsControl mechanisms

Fluid LevelsFluid Levels TiresTires

Hooks and latchesHooks and latches Hydraulic systemHydraulic system


► Crane Set-UpCrane Set-Up

► The operator must be aware of The operator must be aware of potential contact with power potential contact with power lines and maintain an adequate lines and maintain an adequate separation distance based on separation distance based on the voltage of the line.the voltage of the line.

► Some form of highly visible Some form of highly visible physical barrier must be physical barrier must be erected around the swing erected around the swing radius of the crane.radius of the crane.

► Blocking under outriggers Blocking under outriggers should exceed the surface area should exceed the surface area of the float by at least three of the float by at least three times and have no separation times and have no separation between lumber.between lumber.


► Crane Set-UpCrane Set-Up

► Load charts must be either Load charts must be either posted or bound and readily posted or bound and readily accessible in the cab. accessible in the cab.

► Inspection records and operators Inspection records and operators manual should also be on the manual should also be on the vehicle at all times.vehicle at all times.

► Accurate leveling of the crane is Accurate leveling of the crane is essential for safe lifting. Also, essential for safe lifting. Also, particular care must be taken to particular care must be taken to insure the surface under crawler insure the surface under crawler cranes and cranes operating “on cranes and cranes operating “on rubber” are level before making rubber” are level before making the lift.the lift.


►Safe Operating Safe Operating ProceduresProcedures

► Enforce the “no rider” rule. There must be Enforce the “no rider” rule. There must be approved seating for all personnel. approved seating for all personnel. Operators must use seatbelts at all times.Operators must use seatbelts at all times.

► Never use a crane to drag a load sideways. Never use a crane to drag a load sideways. (Sideloading)(Sideloading)

► If the operator has to leave the controls If the operator has to leave the controls he/she must:he/she must: Land the load and place all control levers in Land the load and place all control levers in

neutralneutral Secure the crane against accidental travelSecure the crane against accidental travel Set all brakes and locking devicesSet all brakes and locking devices Shut off the engineShut off the engine


► If crane operation is frequently If crane operation is frequently interrupted, the operator may interrupted, the operator may leave the crane with the engine leave the crane with the engine running so long as the crane running so long as the crane remains in view and remains in view and unauthorized entry is prevented.unauthorized entry is prevented.

► Use tag-lines to control larger Use tag-lines to control larger loads and in conditions where loads and in conditions where the weather is inclementthe weather is inclement..

► Operator must take direction Operator must take direction from only one designated from only one designated signaler.signaler.

SignalingSignaling

►Operators must only respond to Operators must only respond to signals given by the designated signals given by the designated signal person.signal person.

►Unless radios are available, the Unless radios are available, the standard hand signals prescribed standard hand signals prescribed by ANSI/ASME B30.5 are to be by ANSI/ASME B30.5 are to be used.used.

►The following slides show basic The following slides show basic hand signalshand signals

SignalingSignaling

Sling SafetySling Safety

► Synthetic Web SlingsSynthetic Web Slings

► Can handle loads of up to 30,000 Can handle loads of up to 30,000 lbslbs

► Will adjust to the load contour and Will adjust to the load contour and hold it with a tight, non-slip griphold it with a tight, non-slip grip

► Is not affected by mildew, rot, or Is not affected by mildew, rot, or bacteria, resistant to most bacteria, resistant to most chemicals, has excellent abrasion chemicals, has excellent abrasion resistanceresistance

► Has low cost and long service lifeHas low cost and long service life► Can absorb heavy shocks without Can absorb heavy shocks without

damagedamage► Is unaffected by temps up to 180Is unaffected by temps up to 180°F°F► Comes equipped with warning Comes equipped with warning

threads sewn into core to show threads sewn into core to show wear and prompt replacement.wear and prompt replacement.


► Wire RopeWire Rope

► Composed of individual wires Composed of individual wires twisted to form strandstwisted to form strands

► Strands are then twisted to Strands are then twisted to form the ropeform the rope

► Ropes utilizing wire cores Ropes utilizing wire cores have good heat resistance have good heat resistance capabilitiescapabilities

► Factors such as bending Factors such as bending stresses, loading conditions, stresses, loading conditions, jerking, abrasion, corrosion, jerking, abrasion, corrosion, sling design, and materials sling design, and materials handled are all factors that handled are all factors that contribute to the shortened contribute to the shortened service life of a wire rope service life of a wire rope sling.sling.


► ChainsChains

► Commonly used because of Commonly used because of their strength and ability to their strength and ability to adapt to the shape of the adapt to the shape of the load.load.

► Are prone to damage Are prone to damage through sudden shocksthrough sudden shocks

► Chain slings are ideal for Chain slings are ideal for high heat applications, can high heat applications, can be exposed to temperatures be exposed to temperatures of up to 1000of up to 1000°F°F



► Check slings for;Check slings for; Severe corrosion.Severe corrosion. Localized wear(shiny worn spots or Localized wear(shiny worn spots or

frayed, isolated spots)frayed, isolated spots) Damage or displacement of end Damage or displacement of end

fittings, hooks, rings, links, or collars.fittings, hooks, rings, links, or collars. Distortion of eyelets, individual links, Distortion of eyelets, individual links,

or strands.or strands. Limited flexibility Limited flexibility OSHA requires that wire rope slings OSHA requires that wire rope slings

be removed from service if it be removed from service if it contains 6 randomly distributed contains 6 randomly distributed broken wires or 3 broken wires in broken wires or 3 broken wires in one strand in one lay.one strand in one lay.

**Note** Proper storage is critical to **Note** Proper storage is critical to maximizing the life of a sling.maximizing the life of a sling.

Rigging HardwareRigging Hardware

HooksHooks► Clevis and Eye types are Clevis and Eye types are

most commonmost common► Should be inspected for Should be inspected for

spot wear and elongationspot wear and elongation► Hooks should never be Hooks should never be

painted, this can hide painted, this can hide cracks and other causes cracks and other causes of failureof failure

► Latches should be in Latches should be in working order if working order if originally equippedoriginally equipped


ShacklesShackles► Chain or Anchor typeChain or Anchor type► Shackle pins should never be Shackle pins should never be

replaced with boltsreplaced with bolts► Pin side always goes to the Pin side always goes to the

rigging hook, shims may be rigging hook, shims may be necessary to maintain center necessary to maintain center positionposition

► Inspection includesInspection includes Pin seatsPin seats StraightnessStraightness Signs of spreadingSigns of spreading Overall wearOverall wear


TurnbucklesTurnbuckles►Clevis, eye, and Clevis, eye, and

hook typeshook types►Unit can have Unit can have

any combination any combination type on endstype on ends

►Observe working Observe working load limits for load limits for safe use safe use

Flammable and Combustible Flammable and Combustible LiquidsLiquids

►The quantity of flammable or The quantity of flammable or combustible liquid that may kept combustible liquid that may kept outside of a storage room or cabinet outside of a storage room or cabinet inside the building shall not exceed:inside the building shall not exceed: 25 gallons of Class IA liquids in containers25 gallons of Class IA liquids in containers 120 gallons of Class IB, IC, II, III liquids in 120 gallons of Class IB, IC, II, III liquids in

containerscontainers 660 gallons of Class IB, IC, II, III liquids in 660 gallons of Class IB, IC, II, III liquids in

a single portable tanka single portable tank

Flammable Liquid Flammable Liquid ClassificationClassification

Flammable LiquidFlammable Liquid refers to any liquid refers to any liquid having a flash point below 100having a flash point below 100°° F F

FPFP - Flash Point - Flash Point BPBP - Boiling Point - Boiling Point

Class IAClass IA Class IBClass IB Class ICClass IC

FP < 73FP < 73°° FP < 73FP < 73°° FP FP ≥ 73°≥ 73°

BP < 100BP < 100°° BP BP ≥ 100°≥ 100° BP < 100BP < 100°°

Combustible Liquid Combustible Liquid ClassificationClassification

Combustible LiquidCombustible Liquid refers to any liquid refers to any liquid having a flash at or above 100having a flash at or above 100°° F F

FPFP - Flash Point - Flash Point

Class IIClass II Class IIIAClass IIIA Class IIIBClass IIIB

FP FP ≥ 100°≥ 100° FP FP ≥ 140°≥ 140° FP FP ≥ 200°≥ 200°

FP < FP < 140°140° FP < 200°FP < 200°

Inside Storage RoomsInside Storage Rooms

►Shall be of fire resistant constructionShall be of fire resistant construction►Liquid tight were the walls join the Liquid tight were the walls join the

floorfloor►Have approved self closing doors at all Have approved self closing doors at all

openingsopenings►At least 4” sills, ramps, or depressed At least 4” sills, ramps, or depressed

floors or open integrated trench which floors or open integrated trench which drains to safe locationdrains to safe location

Inside Storage RoomsInside Storage Rooms

►A ventilation system that provides at A ventilation system that provides at least six room changes / hourleast six room changes / hour

►For Class I liquids, electrical wiring For Class I liquids, electrical wiring approved for hazardous locationsapproved for hazardous locations

►Explosion resistant lighting fixturesExplosion resistant lighting fixtures►Wood at least 1 inch nominal thickness Wood at least 1 inch nominal thickness

for shelving, racks, dunnage, for shelving, racks, dunnage, scuffboards, floor overlay, and similar scuffboards, floor overlay, and similar installations installations

Flammable StorageFlammable Storage

► All solvent wastes and flammable liquids All solvent wastes and flammable liquids must be kept in fire-resistant, covered must be kept in fire-resistant, covered containers until they are removed from the containers until they are removed from the worksiteworksite

► Firm separation should be placed between Firm separation should be placed between containers of combustibles or flammables, containers of combustibles or flammables, when stacked one upon another, to assure when stacked one upon another, to assure their support and stability their support and stability

► Permanently installed sprinkler system Permanently installed sprinkler system heads must not spray into operating heads must not spray into operating electrical switch boards and equipmentelectrical switch boards and equipment

Flammable LiquidsFlammable Liquids

► Spills of flammable or combustible liquids must be Spills of flammable or combustible liquids must be cleaned up promptly cleaned up promptly

► Storage tanks must be adequately vented to Storage tanks must be adequately vented to prevent the development of excessive vacuum or prevent the development of excessive vacuum or pressure as a result of filling, emptying, or pressure as a result of filling, emptying, or atmosphere temperature changes atmosphere temperature changes

► Storage tanks must also be equipped with Storage tanks must also be equipped with emergency venting that will relieve excessive emergency venting that will relieve excessive internal pressure caused by fire exposureinternal pressure caused by fire exposure

► Insure that all connections on drums and Insure that all connections on drums and combustible liquid piping and vapor are liquid tightcombustible liquid piping and vapor are liquid tight

Flammable LiquidsFlammable Liquids

► Ground and bond Ground and bond bulk drums of bulk drums of flammable liquids flammable liquids to containers to containers during dispensingduring dispensing

► Use approved metal safety cans for Use approved metal safety cans for handling of any flammable liquids in handling of any flammable liquids in quantity greater than a gallonquantity greater than a gallon

► Keep flammable liquids in closed Keep flammable liquids in closed containers when not in use (example: containers when not in use (example: parts cleaning tanks, pans, etc.) parts cleaning tanks, pans, etc.)

Combustible StorageCombustible Storage

► Combustible scrap, debris, and waste Combustible scrap, debris, and waste materials (oily rags, etc.) should be stored materials (oily rags, etc.) should be stored and removed from the worksite as promptly and removed from the worksite as promptly as possible as possible

► Proper storage practiced to minimize the risk Proper storage practiced to minimize the risk of fire including spontaneous combustionof fire including spontaneous combustion

► Keep combustible materials away from Keep combustible materials away from potential ignition sourcespotential ignition sources

► Never store flammable or combustible Never store flammable or combustible liquids in access or egress areasliquids in access or egress areas

General Storage RequirementsGeneral Storage Requirements

► Storage areas must be kept free from Storage areas must be kept free from materials that may cause tripping, fires, or materials that may cause tripping, fires, or explosions.explosions.

► Storage areas should not block or intrude Storage areas should not block or intrude on facility pathwayson facility pathways

► When stacking and piling materials consider When stacking and piling materials consider HeightHeight WeightWeight AccessibilityAccessibility Condition of the containerCondition of the container

General Requirements For General Requirements For StorageStorage

►Consider availability of materials, safe Consider availability of materials, safe movement of material handling movement of material handling equipment, and personnel.equipment, and personnel.

►Employees required to work in stored Employees required to work in stored material vessels shall be equipped with material vessels shall be equipped with a personal fall arrest system.a personal fall arrest system.

►When a difference in work levels exists, When a difference in work levels exists, some means of smooth transition must some means of smooth transition must be employed, i.e. grading, ramps, be employed, i.e. grading, ramps, blocking.blocking.

General Requirements For StorageGeneral Requirements For Storage

► Compressed gas cylinders must be secured and Compressed gas cylinders must be secured and upright. Different gases must be separated by upright. Different gases must be separated by at least 20 ft. or by partition with specific at least 20 ft. or by partition with specific dimension and fire retardant capabilities.dimension and fire retardant capabilities.

► Observe height limitations for stacked materials.Observe height limitations for stacked materials. Ex. Lumber must be stacked no more than 16 ft. high Ex. Lumber must be stacked no more than 16 ft. high

if it is handled manually, 20 ft. for forklift useif it is handled manually, 20 ft. for forklift use► Used lumber must have all nails removed before Used lumber must have all nails removed before

stacking. stacking. ► Lumber must be stacked and leveled on solidly Lumber must be stacked and leveled on solidly

supported bracing.supported bracing.

General Requirements For General Requirements For StorageStorage

► Bags and bundles must be stacked in Bags and bundles must be stacked in interlocking rows.interlocking rows.

► Drums, barrels, and kegs must be stacked Drums, barrels, and kegs must be stacked symmetrically. If stored on their sides, the symmetrically. If stored on their sides, the bottom tiers must be blocked.bottom tiers must be blocked.

► Boxed materials must be banded and baled. Boxed materials must be banded and baled. ► Paper or rags stored inside a trailer must not Paper or rags stored inside a trailer must not

be closer than 18 inches to walls, partitions, be closer than 18 inches to walls, partitions, or sprinkler heads. or sprinkler heads.

► Non-compatible materials must be Non-compatible materials must be separated in storage.separated in storage.

General Storage General Storage RequirementsRequirements

► If space above office or any other If space above office or any other elevated area is used for storage, elevated area is used for storage, handrails must be installed per the handrails must be installed per the OSHA’s handrail requirementsOSHA’s handrail requirements Top Rail height: 42” (+ or – 3”)Top Rail height: 42” (+ or – 3”) Mid Rail height: 21” (+ or – 3”)Mid Rail height: 21” (+ or – 3”) Must be able to support 200 lbs of Must be able to support 200 lbs of

outward and downward force on the top, outward and downward force on the top, 150 lbs on the mid rail150 lbs on the mid rail

Toe Boards are necessary only if an Toe Boards are necessary only if an exposure exists for those belowexposure exists for those below

Disposal of Waste MaterialsDisposal of Waste Materials

► Materials dropped more than 20 feet to any point Materials dropped more than 20 feet to any point lying outside the exterior walls of the building, lying outside the exterior walls of the building, require an enclosed chute.require an enclosed chute.

► Signs warning of the hazard of falling materials shall Signs warning of the hazard of falling materials shall be posted at each level.be posted at each level.

► All scrap lumber, waste material, and rubbish All scrap lumber, waste material, and rubbish should be removed from the immediate work area should be removed from the immediate work area as the work progresses.as the work progresses.

► Disposal of waste material or debris by burning Disposal of waste material or debris by burning must comply with local fire regulations, borough must comply with local fire regulations, borough ordinances, and project management requirements.ordinances, and project management requirements.

► All solvent waste, oily rags, and flammable liquids All solvent waste, oily rags, and flammable liquids shall be kept in fire resistant covered containers shall be kept in fire resistant covered containers until removed from the worksite.until removed from the worksite.

Materials Handling, Storage, and Waste Disposal These handouts and documents with attachments are...

Documents

Transcript of Materials Handling, Storage, and Waste Disposal These handouts and documents with attachments are...