Subpart D Test Circle the appropriate answer and locate appropriate standard Question Standard An opening in the floor is considered a hole when it is more than 24 in. True False Stairway openings do not need fall protection. Railings in Subpart D must withstand 800 lbs. thrust in any direction. The vertical posts of railings must be at 20 ft. centers. Fixed stairs must have a minimum width of 22 in. 1910.21(a)(1) 1910.23(a)(1) 1910.23(e)(3)(iv) 1910.23(e)(3)(i) & (ii) & (iii) 1910.24(d)

Part 1910 Subpart D - Walking-Working Surfaces 1910.21 - Definitions. 1910.22 - General requirements. 1910.23 - Guarding floor and wall openings and holes. 1910.24 - Fixed industrial stairs. 1910.25 - Portable wood ladders. 1910.26 - Portable metal ladders. 1910.27 - Fixed ladders. 1910.28 - Safety requirements for scaffolding. 1910.29 - Manually propelled mobile ladder stands and scaffolds (towers). 1910.30 - Other working surfaces.

Subpart D - Walking/Working Surfaces (1910.21 - 32) Open sided Floors - 640 23(c)(1) Housekeeping - 198 22(a)(1) Wet Floors - 139 22(a)(1) Stair rails - 93 24(h) Floor holes - 86 23(a)(8) Number of Serious Violations - FY 98

1910.21(a)(1) & (a)(2) - Floor hole vs floor opening

Floor Covering

1910.22(a)(1) Housekeeping

1910.22(a)(1) All places of employment, passageways, storerooms, service rooms shall be kept clean and orderly and in a sanitary condition.

Debris on floor

Housekeeping

1910.22(a)(2) - Floors Where wet processes are used, keep floors clean and dry as possible

1910.22(a)(3) - Protruding nails

1910.22(b) - Aisles and passageways (1) Safe clearances; clean and good repair; no obstacles in aisles where mechanical handling equipment is used. (2) Aisles and passageways shall be permanently marked

1910.22(d) - Floor loading protection (1) Loads approved by building official shall be marked.

1910.22(d) (continued) (1) Signs shall be marked & affixed in conspicuous place (2) Unlawful to overload

1910.23 - Guarding floor and wall openings and holes

Guard Rail System 1910.23(a)- Protection for floor openings Mid Rail (1) Every stairway floor opening shall be guarded by a standard railing constructed in accordance with paragraph (e) of this section. Guard Rail System Mid Rail Top Rail Toe Board

Types of materials

1910.23(a)(2) - Ladderway floor openings, platforms - Guarded by standard railing, toeboard

1910.23(a)(3) Hatchway/chute floor opening Guarded by hinged cover or removable railing/toeboard

1910.23(a)(4) Skylight floor opening Guarded by standard skylight screen/or fixed standard railing

Protected sky light

1910.23(a)(6) Manhole floor opening - Guarded by standard manhole cover

1910.23(a)(8) Floor hole opening - Guarded by standard railing/cover

1910.23(a)(8)(ii) - Floor hole opening

1910.23(b) - Wall openings/holes (1) Drop greater than 4’ shall be guarded

Open sided floors, platforms and runways 1910.23(c)(1) Open sided floors, platforms and runways

Work platform

Work platform

Elevated runway Runway

Unguarded

Adequate platform guardrail

What’s the problem here? No toe board

What’s up with this???

1910.23(c)(3) Adjacent to dangerous equipment (regardless of height) - Guarded by standard railing with toeboard Open screw auger directly underneath

1910.23(d) Stairway railings and guards

1910.23(d)(1) Stairway railings and guards 4 or more risers require standard stair railings or handrails

1910.23(d)(1)(i) Stairways less than 44” wide - At least one handrail

1910.23(d)(1)(ii) Less than 44” wide with one open side - At least one railing on open side

1910.23(d)(1)(iii) Less than 44” wide with both open sides - Stair railing on each side

What’s wrong with this picture?

1910.23 (e)(3)(iv) The anchoring of posts and framing of members for railings of all types - Capable of withstanding a load of at least 200 pounds applied in any direction at any point on the top rail.

1910.24 - Fixed Industrial Stairs

1910.24(c) Stair strength Must carry 5 times normal live load anticipated, but never less than 1000 pounds moving concentrated load

1910.24(d) Minimum Stair Width of 22” 1910.24(e) Angle of Stairway Rise “Table D-1” Table D-1 ___________________________________________________________________ | | Angle to horizontal | Rise (in inches) | Tread run (in inches) _________________________ |__________________|______________________ 30 deg. 35'...............| 6 1/2 | 11 32 deg. 08'...............| 6 3/4 | 10 3/4 33 deg. 41'...............| 7 | 10 1/2 35 deg. 16'...............| 7 1/4 | 10 1/4 36 deg. 52'...............| 7 1/2 | 10 38 deg. 29'...............| 7 3/4 | 9 3/4 40 deg. 08'...............| 8 | 9 1/2 41 deg. 44'...............| 8 1/4 | 9 1/4 43 deg. 22'...............| 8 1/2 | 9 45 deg. 00'...............| 8 3/4 | 8 3/4 46 deg. 38'...............| 9 | 8 1/2 48 deg. 16'...............| 9 1/4 | 8 1/4 49 deg. 54'...............| 9 1/2 | 8 __________________________|__________________|______________________ 30 deg. angle Tread 11” Rise 6 1/2” Tread 11” Rise 6 1/2”

1910.24(h) Standard railing on open sides of all exposed stairways and stair platforms Hand rails provided on at least one side of closed stairways 1910.24(i) Vertical clearance above stair tread to overhead obstruction - At least 7 feet