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Ensure the fire safe design and operation of instructional, educational, and industrial laboratories using chemicals! NFPA 45 outlines the maximum allowable quantities of liquids and gases, as well as requirements for laboratory ventilating systems and hoods. Look this edition of this respected Standard for:

Modified laboratory separation requirements, including more stringent requirements for non-sprinklered laboratories. Non-sprinklered laboratories of Class A or B and Class C (over 10,000 square feet) are now prohibited.
Expanded requirements and advisory information for compressed and liquefied gases. Maximum quantity requirements are clarified based on four listed gas classifications.
Modified laboratory ventilating systems and hood requirements, updated to address the use of VAV (Variable Air Volume) laboratory ventilation systems
Clarified text regarding multiple or manifold exhaust ducts within buildings


Chapter 1 General
Chapter 2 Laboratory Unit Hazard Classification
Chapter 3 Laboratory Unit Design and Construction
Chapter 4 Fire Protection
Chapter 5 Explosion Hazard Protection
Chapter 6 Laboratory Ventilating Systems and Hood Requirements
Chapter 7 Chemical Storage, Handling, and Waste Disposal
Chapter 8 Compressed and Liquefied Gases
Chapter 9 Laboratory Operations and Apparatus
Chapter 10 Hazard Identification
Chapter 11 Referenced Publications
Appendix A Explanatory Material
Appendix B Supplementary Definitions
Appendix C Supplementary Information on Explosion Hazards and Protection
Appendix D Supplementary Information on the Concept of the Laboratory Unit
Appendix E Flammability Characteristics of Common Compressed and Liquefied Gases
Appendix F Safety Tips for Compressed Gas Users
Appendix G Referenced Publications
Formal Interpretation
NFPA