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FLAMMABLE AND COMBUSTIBLE LIQUIDS LEL AND UEL (Same as LFL and UFL) FLASH POINT VAPOR PRESSURE SPECIFIC GRAVITY VAPOR DENSITY.

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Presentation on theme: "FLAMMABLE AND COMBUSTIBLE LIQUIDS LEL AND UEL (Same as LFL and UFL) FLASH POINT VAPOR PRESSURE SPECIFIC GRAVITY VAPOR DENSITY."— Presentation transcript:

1 FLAMMABLE AND COMBUSTIBLE LIQUIDS LEL AND UEL (Same as LFL and UFL) FLASH POINT VAPOR PRESSURE SPECIFIC GRAVITY VAPOR DENSITY

2 versus NFPA 30 The older version of OSHAs 29 CFR –Flammable Liquids, was based upon the 1969 version of NFPA 30 Flammable and Combustible Liquids Code. In response to OSHAs revised Hazard Communication standard (due to incorporation of the Globally Harmonized System [GHS]), OSHA revised 29 CFR OSHA The title of 29 CFR has been changed from Flammable and Combustible Liquids to Flammable Liquids. The 2012 Edition of NFPA 30 has not been revised to reflect GHS guidelines. NFPA 30 continues to use the term flammable and combustible liquid and refers to classes of liquids.

3 NFPA 30 FLAMMABLE LIQUIDS Definitions under OSHA 1910 Standards – What about 1926 standards?? FLASH POINT BELOW 100 DEGREES F – CLASSES – IA - FP BELOW 73 DEGREES BOILING POINT BELOW 100 DEGREES – IB - FP BELOW 73 DEGREES BOILING POINT AT OR ABOVE 100 DEGREES – IC - FP AT OR ABOVE 73 DEGREES AND BELOW 100 DEGREES

4 NFPA 30 COMBUSTIBLE LIQUIDS FLASH POINT AT OR ABOVE 100 DEGREES F CLASSES – II - FP AT OR ABOVE 100 DEGREES AND BELOW 140 DEGREES – IIIA - FP AT OR ABOVE 140 DEGREES AND BELOW 200 DEGREES – IIIB - FP AT OR ABOVE 200 DEGREES

5 OSHA (GHS criteria) CategoryCriteria 1 Flash point < 73°F(23°C) and initial boiling point < 95°F(35°C) 2 Flash point < 73°F(23°C) and initial boiling point > 95°F(35°C) 3 Flash point 73°F(23°C) and < 140°F(60.5°C) 4 Flash point > 140°F(60.5°C) and < 199.4°F(93°C)

6 Applying the OSHA Standards What type of facility is it? What types of liquids fall under ? If it is an industrial facility, is the handling of flammable and combustible liquids a major requirement of the business process or is it incidental use? If incidental use, then follow (e) Industrial Facilities

7 Storage cabinets (d)(3) Design, construction, and capacity of storage cabinets – Specific requirements on design and construction. Must withstand a 10 minute fire test. – Not more than 60 gallons of Category 1, 2, or 3 liquids should be stored in a cabinet nor more than 120 Gallons of Category 4.

8 Venting Flammable Liquid Cabinets The fittings are sometimes provided by the manufacturers due to the fact that, in a few locations in the country, local ordinances require such vents to be provided. Therefore, the manufacturers plug these vents [with plugs] which can be removed in those few areas where such venting is required. Unless a municipality or other government agency specifically requires the bung to be vented, venting is not required, nor is it recommended.

9 Inside Storage Rooms Design requirements for inside storage rooms: OSHA Standards – (d)(4) – "Design and construction of inside storage rooms"

10 Inside Storage Rooms – Room construction (ratings, doors, etc) – Electrical Wiring – Ventilation – Clear aisles

11 Point of Use Procedures If handling occurs in an industrial facility, follow requirements under (e)(6) Why is grounding and bonding required? – For example, what categories of liquids? What impact does using a plastic safety can have on this? Are plastic safety cans acceptable for use in the workplace by OSHA?

12 Aboveground Storage Tanks (b)(2) addresses aboveground tanks Topics include tank design and construction, spill containment, dikes, venting, etc.


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