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1、NFPA 42 Code for the Storage of Pyroxylin Plastic 1997 Edition National Fire Protection Association, 1 Batterymarch Park, PO Box 9101, Quincy, MA 02269-9101 An International Codes and Standards Organization Copyright National Fire Protection Association, Inc. One Batterymarch Park Quincy, Massachuse
2、tts 02269 IMPORTANT NOTICE ABOUT THIS DOCUMENT NFPA codes and standards, of which the document contained herein is one, are developed through a consensus stan- dards development process approved by the American National Standards Institute. This process brings together volunteers representing varied
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24、nd may receive a special royalty where the public interest will be served thereby. 3. Scope of License Grant The terms and conditions set forth above do not extend to the index of this document. (For further explanation, see the Policy Concerning the Adoption, Printing, and Publication of NFPA Docum
25、ents, which is available upon request from the NFPA.) 421 Copyright 1997 NFPA, All Rights Reserved NFPA 42 Code for the Storage of Pyroxylin Plastic 1997 Edition This edition of NFPA 42, Code for the Storage of Pyroxylin Plastic, was prepared by the Techni- cal Committee on Hazardous Chemicals and a
26、cted on by the National Fire Protection Associ- ation, Inc., at its Annual Meeting held May 1922, 1997, in Los Angeles, CA. It was issued by the Standards Council on July 24, 1997, with an effective date of August 15, 1997, and super- sedes all previous editions. Changes other than editorial are ind
27、icated by a vertical rule in the margin of the pages on which they appear. These lines are included as an aid to the user in identifying changes from the previous edition. This edition of NFPA 42 was approved as an American National Standard on August 15, 1997. Origin and Development of NFPA 42 NFPA
28、 42 (formerly NFPA 40E), Code for the Storage of Pyroxylin Plastic, was developed by com- bining the requirements established in two other standards, NFPA 42-1967, Storage, Handling and Use of Pyroxylin Plastics in Factories, and NFPA 43-1967, Standard for the Storage and Sale of Pyroxylin Plastic i
29、n Warehouses and Wholesale, Jobbing and Retail Stores. NFPA 42 and NFPA 43 were originally the responsibility of the Technical Committee on Explosives. In 1972, responsibility was transferred to the Technical Committee on Storage, Handling and Transportation of Hazardous Chemicals. In late 1972, thi
30、s Technical Commit- tee investigated the effectiveness of both standards, since very little pyroxylin plastic was in use and its manufacture in the United States had almost disappeared. Rather than withdraw either standard, it was decided to combine them to produce a single code that would cover all
31、 storage of pyroxylin plastic, with the exception of cellulose nitrate motion picture film and nitrocellulose used in the manufacture of lacquer. The project of combining NFPA 42 and NFPA 43 was begun in 1973 and completed in Jan- uary 1975. NFPA 40E was adopted at the 1975 NFPA Fall Meeting in Pitt
32、sburgh, PA on Novem- ber 19, 1975, becoming the 1975 edition. At the same time, NFPA 42 and NFPA 43 were withdrawn. Minor amendments were adopted at the 1980 NFPA Fall Meeting for the 1980 edition, the 1985 NFPA Fall Meeting for the 1986 edition, and the 1992 NFPA Fall Meeting for the 1993 edition.
33、For the 1997 edition, the Committee revised the definition of cabinet and added a defini- tion for segregated to clarify the scope and application of the code. The Committee updated the terminology used to describe fire doors to be consistent with that used in NFPA 80, Stan- dard for Fire Doors and
34、Fire Windows. The Committee also updated the sprinkler terminology in Chapter 4 to be consistent with modern sprinkler technology. The other changes were edito- rial in nature to conform with the NFPA Manual of Style. 422STORAGE OF PYROXYLIN PLASTIC 1997 Edition Technical Committee on Hazardous Chem
35、icals John A. Davenport, Chair Industrial Risk Insurers, CT I James E. Benge, Hercules Chemical Specialties Co., DE U William J. Bradford, Brookfield, CT SE James L. Daneker, Los Angeles City Fire Dept., CA E Rep. NFPA Fire Service Section August L. DeVico, Environmental Strategies nor does it appro
36、ve or evalu- ate testing laboratories. In determining the acceptability of installations, procedures, equipment, or materials, the author- ity having jurisdiction may base acceptance on compliance with NFPA or other appropriate standards. In the absence of such standards, said authority may require
37、evidence of proper installation, procedure, or use. The authority having jurisdic- tion may also refer to the listings or labeling practices of an organization that is concerned with product evaluations and is thus in a position to determine compliance with appropriate standards for the current prod
38、uction of listed items. A-1-3 Authority Having Jurisdiction. The phrase “authority having jurisdiction” is used in NFPA documents in a broad manner, since jurisdictions and approval agencies vary, as do their responsibilities. Where public safety is primary, the authority having jurisdiction may be
39、a federal, state, local, or other regional department or individual such as a fire chief; fire marshal; chief of a fire prevention bureau, labor depart- ment, or health department; building official; electrical inspector; or others having statutory authority. For insurance purposes, an insurance ins
40、pection department, rating bureau, or other insurance company representative may be the author- ity having jurisdiction. In many circumstances, the property owner or his or her designated agent assumes the role of the authority having jurisdiction; at government installations, the commanding officer
41、 or departmental official may be the authority having jurisdiction. A-1-3 Listed. The means for identifying listed equipment may vary for each organization concerned with product evalu- ation; some organizations do not recognize equipment as listed unless it is also labeled. The authority having jur
42、isdiction should utilize the system employed by the listing organization to identify a listed product. A-1-3 Segregated. Sills, curbs, or intervening storage of non- hazardous compatible materials and aisles can be used as aids in maintaining separation. A-4-4.6 A depth of 10 ft (3 m) of water will
43、result in a floor load of 626 lb (284 kg) per 1 ft2 (0.09 m2). Appendix B Referenced Publications B-1 The following documents or portions thereof are refer- enced within this code for informational purposes only and are thus not considered part of the requirements of this code unless also listed in
44、Chapter 5. The edition indicated here for each reference is the current edition as of the date of the NFPA issuance of the code. B-1.1 NFPA Publication. National Fire Protection Associa- tion, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269- 9101. NFPA 40, Standard for the Storage and Handling of Cellulose Nitrate Motion Picture Film, 1997 edition.