MATERIALS HANDLING SUB-PART H 1926.250 Georgia Tech Safety and Health Consultation Program

MATERIALS HANDLING

SUB-PART H 1926.250

Georgia Tech Safety and Health Consultation Program

Introduction This training information has been prepared by the Safety and Health

Consultation Program at Georgia Tech with the technical collaboration of Mr. Juán C. Rodriguez and under the sponsorship of OSHA. Its content may be copied and distributed for free. The only request made to the user is that Georgia Tech’s Safety and Health Consultation Program be acknowledged as the source. All information contained in this training is believed to be correct by the authors, but it is important to point out that, this is not an official OSHA publication and has not been revised or approved by OSHA. The user should be aware that the recommendations provided in this training do not replace any OSHA standard or regulation.


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Web: http://www.oshainfo.gatech.edu


SUB-PART H

General requirements for the storage of materials

Usage of rigging equipment (slings, fastenings, and attachments) for the moving of materials by hoisting

Disposal of waste materials (debris, scrap, rubbish)

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GENERAL REQUIREMENTS FOR STORAGEAll materials should be stored in a secure and safe

way to prevent sliding, falling or collapse (take into account the maximum safe load limits of the floors per square foot)

Aisles and passageways shall be kept clear and in good repair to provide for the free and safe movement of workers and the operation of material handling equipment

When a difference in road or working levels exist, the employer shall ensure the safe movement of vehicles between the two levels though the use of ramps, blocking, or grading Georgia Tech Safety and Health




GENERAL REQUIREMENTS FOR STORAGE cont.Materials stored inside buildings under

construction shall not be placed within 6 feet of any hoist way or inside floor openings

Materials should not be stored within 10 feet of an exterior wall that is being built, which does not extend above the top of the material stored

Each employee required to work on stored material in silos, hoppers, tanks, and similar storage areas shall be equipped with personal fall arrest equipment meeting the requirements of subpart M of the construction standard

Non-compatible materials shall be segregated in storage Georgia Tech Safety and Health




GENERAL REQUIREMENTS FOR STORAGE cont.

Bagged materials shall be stacked by:Stepping back the layers and cross-keying the

bags at least every 10 bags high, orWrapping the stack with a strong plastic

material to prevent their fallingBrick stacks shall not be more than 7 feet in

heightWhen a loose brick stack reaches a height of

4 feet, it shall be tapered back 2 inches in every foot of height above the 4-foot level GA Tech Safety and Health Consultation

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When masonry blocks are stacked higher than 6 feet, the stack shall be tapered back one-half block per tier above the 6-foot level

Any cylindrical material (such as poles, pipes, and structural steel), unless raked, shall be stacked and blocked so as to prevent its spreading or tilting

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LUMBER:Pieces of lumber previously used shall have all

nails withdrawn before stacking themLumber shall be stacked on level and solidly

supported sills so that it remains in a stable and safe position

Lumber piles shall not exceed 20 feet in heightPieces of lumber handled manually shall not

be stacked more than 16 feet high



HOUSEKEEPING AND DISPOSAL OF WASTE MATERIALS

Storage areas shall be kept free from accumulation of materials that constitute hazards such as:explosions, fire, tripping and falling of workers, and/or harboring pests

Vegetation control measures should be exercised when necessary

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INSPECTION OF RIGGING EQUIPMENT FOR MATERIAL HANDLING

In general :Rigging equipment shall be inspected:

Each day prior to use on each shift, and As necessary during its use to ensure that it is safe

Defective equipment shall be removed from serviceShall not be loaded in excess of its recommended safe

working load (refer for tables tables H-1 thru H-20 of subpart 1926.251 for specific rated capacities)

Equipment shall be removed from the immediate work area when not in use

Special custom design grabs, hooks, clamps, or other lifting accessories, for such units as prefabricated structures and similar materials, shall be marked to indicate the safe working loads and shall be proof-tested prior to use to 125% of their rated load


INSPECTION OF RIGGING EQUIPMENT FOR MATERIAL HANDLING…cont

INSPECTIONS OF SLINGS AND ALL ATTACHMENTS:

Sling and all attachments shall be inspected for damage or defects by a competent person designated by the employer each day before use

Damaged or defective slings shall be immediately removed from service


ALLOY STEEL CHAINS

Welded alloy steel chain slings shall have permanently affixed durable identification stating: size, grade, rated capacity, and sling manufacturer

Any other additional attachment when used with this type of chain (such as hooks, rings, or oblong links), shall have a rated capacity at least equal to that of the chain

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ALLOY STEEL CHAINS cont.Alloy Steel Chains:

Shall be inspected at least once a year Shall have a rated capacity (working load limit)

that conforms to the values shown in table H – 1

Should not be used with job or shop hooks and links, or makeshift fasteners, formed from bolts, rods, or other such attachments

The employer shall make and maintain a record of the most recent month in which each alloy steel chain sling was thoroughly inspected, and shall make such record available for examination


WIRE ROPETables H-3 through H-14 shall be used to determine

the safe working loads of various sizes and classifications of improved plow steel wire rope and wire rope slings with various types of terminals

Protruding ends of strands in splices on slings and bridles shall be covered or blunted

Wire rope shall not be secured by knots, except on haul back lines on scrapers

An eye splice made in any wire rope shall have at least three full tucks. This requirement shall not operate to preclude the use

of another form of splice or connection if: It can be shown to be as efficient, and It is not otherwise prohibited


WIRE ROPE cont.

Must consist of one continuous piece except for eye splices in the ends of wires

Wire ropes shall not be used if, in any length of 8 diameters, the total number of visible broken wires exceeds 10% of the total number of wires, or if the rope shows other signs of excessive wear, corrosion, or defect

“Never saddle up a dead horse ”






WIRE ROPE cont.

Wire rope:Shall not be kinked or permanently bentShall be protected from the sharp edges of its loadShall not be pulled from under a load resting on it

Shock loading is prohibitedBe aware of the safe operating temperatures


SYNTHETIC WEBBING SLINGS (NYLON)Shall be marked or coded to show: name or

trademark of manufacturer, rated capacity for the type of hitch, and type of material

The manufacturer’s safe working load shall never be exceeded

If a red warning thread is visible, the sling must be removed from service




SYNTHETIC WEBBING SLINGS (NYLON) cont.

Shall never be used for hoisting materials with sharp edges unless protective measures have been taken

Shall not be used if there are visible defects are observed due to:excessive operational temperatures,burns/charring from chemical products, orconditions such as punctures, tears, cuts or

distortion of fittingsGA Tech Safety and Health Consultation

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OTHER ATTACHMENTS

Any other additional attachment (such as hooks, rings, oblong links, etc.) shall be used following the manufacturer’s recommendations and the OSHA tables

All parts to be used for hoisting materials shall have a rated capacity at least equal or higher to that of the part with the lowest rated capacity in the whole assembly



DISPOSAL OF WASTE MATERIALSAll waste material shall be removed from the

immediate work area as the work progresses and placed into waste containers

An enclosed chute shall be used when materials are dropped more than 20 feet to any point lying outside the exterior walls of the building

When debris is dropped through a hole in the floor without the use of a chute, the area onto which the material is dropped shall be completely enclosed with barricades not less than 42" high and not less than 6 feet back from the projected edge of the opening above



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MATERIALS HANDLING SUB-PART H 1926.250 Georgia Tech Safety and Health Consultation Program