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NFPA 30: 易燃和可燃液體規范

放大字體  縮小字體 發布日期:2012-02-09   瀏覽次數:1637  分享到: 分享到騰訊微博
NFPA 30: 易燃和可燃液體規范
NFPA 30: Flammable and Combustible Liquids Code
NFPA 30: 易燃和可燃液體規范
 
1.1 Scope.
1.1.1* This code shall apply to the storage, handling, and use of flammable and combustible liquids, including waste liquids, as herein defined and classified.
1.1.2 This code shall not apply to the following:
(1)* Any liquid that has a melting point of 100°F (37.8°C) or greater
(2)* Any liquid that does not meet the criteria for fluidity given in the definition of liquid in Chapter 3 and in the provisions of Chapter 4
(3) Any cryogenic fluid or liquefied gas, as defined in Chapter 3
(4)* Any liquid that does not have a flash point, but which is capable of burning under certain conditions
(5)* Any aerosol product
(6) Any mist, spray, or foam
(7)* Transportation of flammable and combustible liquids as governed by the U.S. Department of Transportation
(8)* Storage, handling, and use of fuel oil tanks and containers connected with oil-burning equipment
A.1.1.1 This code is recommended for use as the basis for legal regulations. Its provisions are intended to reduce the hazard to a degree consistent with reasonable public safety, without undue interference with public convenience and necessity, of operations that require the use of flammable and combustible liquids. Compliance with this code does not eliminate all hazards in the use of flammable and combustible liquids. (See the Flammable and Combustible Liquids Code Handbook for additional explanatory information.)
A.1.1.2(1) Liquids that are solid at 100°F (37.8°C) or above, but are handled, used, or stored at temperatures above their flash points, should be reviewed against pertinent sections of this code.
A.1.1.2(2) The information in A.1.1.2(1) also applies here.
A.1.1.2(4) Certain mixtures of flammable or combustible liquids and halogenated hydrocarbons either do not exhibit a flash point using the standard closed-cup test methods or will exhibit elevated flash points. However, if the halogenated hydrocarbon is the more volatile component, preferential evaporation of this component can result in a liquid that does have a flash point or has a flash point that is lower than the original mixture. In order to evaluate the fire hazard of such mixtures, flash point tests should be conducted after fractional evaporation of 10, 20, 40, 60, or even 90 percent of the original sample or other fractions representative of the conditions of use. For systems such as open process tanks or spills in open air, an open-cup test method might be more appropriate for estimating the fire hazard.
A.1.1.2(5) See NFPA 30B, Code for the Manufacture and Storage of Aerosol Products.
A.1.1.2(7) Requirements for transportation of flammable and combustible liquids can be found in NFPA 385, Standard for Tank Vehicles for Flammable and Combustible Liquids, and in the U.S. Department of Transportation’s Hazardous Materials Regulations, Title 49, Code of Federal Regulations, Parts 100–199.
A.1.1.2(8) See NFPA 31, Standard for the Installation of Oil-Burning Equipment.
 
 
If your job involves flammable and combustible liquids, updating to the 2012 NFPA 30 is your first priority.
Enforceable under OSHA and many state and local regulations, NFPA 30: Flammable and Combustible Liquids Code is the best practice document widely used in industry and by insurers. The 2012 edition includes the latest and most complete criteria you need to protect your facility by ensuring safe storage, handling, and use of flammable and combustible liquids.
Major changes respond to newly identified risks:
·   New provision requires that Class II and Class III liquids stored, handled, processed, or used at temperatures at or above their flash points follow all applicable requirements in the Code for Class I liquids, unless an engineering evaluation deems otherwise.
·   An annex item explains that the use of spark-resistant tools must be evaluated on a case-by-case basis.
·   In response to U.S. DHS rules requiring security/vulnerability assessments for high-hazard facilities, new Section 6.10 and an accompanying Annex H have been added to address management of facility security by means of a mandatory security and vulnerability assessment. Annex H provides an outline of a suggested assessment process.
·   New annex guidance covers selecting a safe location to which a flammable liquids storage cabinet may be vented, and selecting a safe location to which a flammable liquids dispensing area may be vented.
·   Provisions for flammable liquids storage cabinets incorporate more extensive marking requirements.
·   Revised Table 9.9.1, Fire Resistance Ratings for Liquid Storage Areas, indicates that no fire resistance rating is required for separation walls for accessory use areas of small floor area.
·   Revised Section 13.3 more clearly establishes the required separation between detached unprotected liquids storage buildings and both protected and unprotected exposed properties.
·   Numerous minor amendments have been made to clarify application of the provisions of Chapter 16, Automatic Fire Protection for Inside Liquid Storage Areas.
·   New Subsection 17.3.7 has been added to address process vessels used to heat liquids to temperatures at or above their flash points, as suggested by investigations conducted by the U. S. Chemical Safety and Hazard Investigation Board.
·   New provision clarifies that tightness testing is not required for an interstitial space of a secondary containment tank that maintains factory-applied vacuum.
·   A note and annex item for Table 22.4.2.1, Minimum Shell-to-Shell Spacing of Aboveground Storage Tanks, explain the term "sum of adjacent diameters" and its determination.
·   Changes provide additional guidance on handling floating roof pontoons that have been breached by liquids or vapors.
·   The Code no longer allows the use of water ballast to secure underground tanks in areas subject to flooding.
·   Use and installation of alcohol-based hand rub dispensers are now exempted from the Code.
·   Revised definitions for the various types of building occupancies correlate NFPA 101®: Life Safety Code®.
Get the criteria you need to design facilities for better protection, comply with sprinkler requirements, and use safe operating practices. (Softbound, 150 pp., 2012)

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