NFPA 497 recommended practice for the classification of flammable liquids, gases, or vapors and of hazardous (classified) locations for electrical installations in chemical process areas /
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| Format: | Book |
| Language: | English |
| Published: |
Quincy, MA :
National Fire Protection Association,
[2004]
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| Edition: | 2004 ed. |
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| Item Description: | Cover title. " ... approved as an American National Standard on January 16, 2004"--P. 1. |
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| Physical Description: | 62 pages : illustrations ; 28 cm. |
| Bibliography: | Includes bibliographical references (pages 58-59) and index. |