TITLE 8:
GENERAL INDUSTRY SAFETY ORDERS
CHAPTER 4, SUBCHAPTER 7, ARTICLE 108
SECTIONS 5157 AND 5158, ARTICLE 135, SECTION 5416;
SHIP BUILDING, SHIP REPAIRING, AND SHIP BREAKING SAFETY ORDERS
SUBCHAPTER 18, ARTICLE 4
SECTION 8355

APPROVED TESTING EQUIPMENT


Amend Section 5157 to read:

5157. Permit-Required Confined Spaces.

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(b) Definitions.

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Testing means the process by which the hazards that may confront entrants of a permit space are identified and evaluated. Testing includes specifying the tests that are to be performed in the permit space. If electronic or thermal equipment is used to perform such tests, and the possibility exists of an explosive substance or a hazardous atmosphere due to flammable gases and vapors, then the testing equipment must be approved for use in such explosive or flammable conditions as required by section 2540.2.

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Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

 

 

Amend Section 5158 to read:

  5158. Other Confined Space Operations.

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(d) Pre-entry.

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(3) The air shall be tested with an appropriate device or method to determine whether dangerous air contamination and/or oxygen deficiency exists. and aA written record of such testing results shall be made and kept at the work site for the duration of the work. Affected employees and/or their representative shall be afforded an opportunity to review and record the testing results. If an electronic or thermal device is used to test a confined space that contains or is likely to develop a dangerous air contamination due to flammable and/or explosive substances, then the device must be approved for use in such explosive or flammable conditions as required by section 2540.2.

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(e) Confined Space Operations.

(1) Entry Into and Work Within Confined Spaces.

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(F) Work involving the use of flame, arc, spark, or other source of ignition is prohibited within a confined space (or any adjacent space having common walls, floor, or ceiling with the confined space) which contains, or is likely to develop, dangerous air contamination due to flammable and/or explosive substances.

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Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

Amend Section 5416 to read:

 

 

5416. Flammable Vapors.

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(c) No source of ignition shall be permitted in any location, indoors or outdoors, where the concentration of the flammable gases or vapors exceeds or may reasonably be expected to exceed 25 percent of the lower explosive limit. Tests shall be made to ascertain that this limit is not exceeded before a source of ignition is introduced into such location, and such tests shall be repeated frequently (or a continuous indicator used) as long as conditions giving rise to such concentrations of flammable vapors or gases continue and a source of ignition is present. If electronic or thermal testing equipment is used, it must be approved for use in such flammable conditions as required by section 2540.2.

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Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

 

 

Amend Section 8355 to read:

8355. Confined and Enclosed Spaces and Other Dangerous Atmospheres.

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(e) Precautions and Order of Testing Before Entering Confined and Enclosed Spaces and Other Dangerous Atmospheres. The employer shall ensure that atmospheric testing is performed in the following sequence: oxygen content, flammability, toxicity. If electronic or thermal equipment is used for testing and the possibility exists of an explosive substance or a flammable atmosphere, then the testing equipment must be approved for use in such explosive or flammable conditions as required by section 2540.2.

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Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.