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- -- card: 6452 from stack: in.STK
- -- bmap block id: 6138
- -- flags: 0000
- -- background id: 2575
- -- name:
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- -- part 1 (field)
- -- low flags: 00
- -- high flags: 0007
- -- rect: left=23 top=70 right=309 bottom=354
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- -- font id: 22
- -- text size: 10
- -- style flags: 0
- -- line height: 13
- -- part name:
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- -- part 2 (button)
- -- low flags: 00
- -- high flags: A004
- -- rect: left=361 top=69 right=126 bottom=421
- -- title width / last selected line: 0
- -- icon id / first selected line: 14953 / 14953
- -- text alignment: 1
- -- font id: 0
- -- text size: 12
- -- style flags: 0
- -- line height: 16
- -- part name: Return
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- -- text size: 12
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- -- line height: 16
- -- part name: Quit
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- -- icon id / first selected line: 1005 / 1005
- -- text alignment: 1
- -- font id: 0
- -- text size: 12
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- -- line height: 16
- -- part name: Ex. Permit
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- -- part contents for card part 1
- ----- text -----
- Permits and Procedures
-
- Before entry into a confined space can be allowed it is necessary to ensure a safe environment for
- work. This is done by requiring that a confined space entry procedure be followed. In most cases in industry a Vessel Entry or Confined Space Permit
- will also be required before entry is allowed.
-
- For safe confined space entry the following items should be checked out in advance.
-
- 1. All flanges, connections, or fittings which
- deliver raw material or product to/from a vessel
- need to be blanked or physically disconnected.
- Utility piping delivering nitrogen or steam
- must be disconnected.
-
- 2. A manyway or means of entry and exit needs to
- be opened. Safe egress via ladder, etc, must be
- evaluated prior to entry.
-
- 3. A test should be made of the air within the
- vessel to determine %LEL of flammable
- vapors if the vessel previously contained a
- flammable or toxic organic material. In some
- cases a Draeger tube test may be required to
- monitor for extremely toxic materials with TLV's
- in the part if %LEL is greater than 10%. A zero
- %LEL is desirable. It may be necessary to
- provide exhaust ventilation in order to bring
- the %LEL to zero. If the atmosphere cannot be
- controlled proper respiratory equipment
- (i.e. SCBA) and protective clothing can be worn.
-
- 4. A test should be made for %Oxygen using a
- calibrated and functioning oxygen analyzer (i.e.
- Ecotox is one brand available). Entry should
- not be made if the atmosphere contains <19.5%
- oxygen or >22% oxygen.
-
- 5. An approved lifeline and harness should be worn
- during entry operations.
-
- 6. A standby lifeline assistant should watch over
- the operation and have either radio or telephone
- contact in the event of an emergency.
-
- 7. Electrical equipment such as pumps, agitator
- motors, hydraulic rams, etc. must be locked out
- in accordance with an approved lockout procedure.
- (This is could be another tutorial in itself.)
-
- 8. Emergency/standby breathing apparatus must be
- available.
-
- 9. For entry into railcars/tank trucks. Safety
- devices and procedures such as installation of
- wheel chocks, derails, and posting a "Men at
- Work" blue flag is required.
-
- 10. In excavations or pits deeper than four feet
- shoring of sides should be used to prevent cave
- in or collapse.
-
-
- A management procedure should be inplace requiring that a PERMIT be signed and authorized by a trained
- and knowledgable individual. The formal procedure
- would require the completion of a CONFINED SPACE
- PERMIT prior to every confined space entry to ensure that all hazards of each indiviual case have
- been evaluated. Blanket authorization of confined
- space entry should "NEVER" be allowed to occur as even from shift to shift situations and conditions
- change. Permits should be reauthorized at shift changes or upon reentry if a significant time period has elapsed.
-
- The Button <Ex. Permits> contains a model permit
- which can be studied for confined space entry.
-