"NFPA"指“美國消防協會”（又譯“國家防火委員會”），成立於1896年，旨在促進防火科學的發展，改進消防技術，組織情報交流，建立防護設備，減少由於火災造成的生命財產的損失。該協會是一個國際性的技術與教育組織。
基本介紹
- 公司名稱：美國消防協會
- 外文名稱：National Fire Protection Association
- 成立時間：1896年
- 簡稱：NFPA
簡介,NFPA標準,NFPA 704,鑑別標準,藍色,紅色,黃色,白色,實例,參考資料,
簡介
擁有150個學會、協會等組織的集體會員，75，000名個人會員，此外，還有80多其他國家的會員。制訂防火規範、標準、推薦操作規程、手冊、指南及標準法規等。NFPA的另一意思為“美國消防規範”，它包括建築防火設計規範、滅火救援訓練、器材相關規範（如1983、1670等等）等等，現已得到國內外廣泛承認，並有許多標準被納入美國國家標準（ANSI）。此外，該協會還參加國際標準化組織（ISO）與加拿大電氣規程委員會（CECC）的標準制訂工作。並與美國勞動部（DL），美國衛生、教育與福利部（DHEW）、美國國家標準局（NBS）、美國一般事務管理局（GSA）和美國住房與城市發展部（HUD）等機構保持協作關係。NFPA通過其網站提供NFPA標準資料庫檢索、出版物介紹、期刊、會議錄等信息服務。標準名稱：全國防火規範（National Fire Code：NFC）標準編號：標準代號+一至四位數號+制訂年份 例：NFPA 10-1978 輕便滅火器期刊：NFPA雜誌（NFPA Journal）；NEC Digest（NEC文摘）；NFPA Update。
美國消防協會（NFPA）駐京辦事處位於北京市朝陽區東三環南路58號，負責人為劉遠景女士(Janet Liu)。
NFPA標準
NFPA 484-2005 Standard for Combustible Metals 2006 Edition
NFPA 484-2006易燃金屬130頁
NFPA 490-2002硝酸銨的存儲規範14頁
NFPA 491-1997危險化學反應導則234頁
NFPA 495-2005 Explosive Materials Code 2006 Edition
NFPA 495-2006炸藥規範63頁
NFPA 496-2003電氣設備清潔與壓力外殼27頁
NFPA 497-2004危險(分類)區域中有關電氣設備的氣體、蒸氣和粉塵的分類68頁
NFPA 498-2005 Standard for Safe Havens and Interchange Lots for Vehicles Transporting Explosives 2006 Edition
NFPA 498-2006車載爆炸物的安全處和互換批14頁
NFPA 499-2004可燃粉塵分類和化工生產區中電氣裝置危險品(經分類)設定分類推薦實施規程29頁
NFPA 5000-2005 Building Construction and Safety Code 2006 Edition
NFPA 5000-2006建築結構和安全規範591頁
NFPA 501-2005廠房建設標準114頁
NFPA 501A-2005廠房建設和社團的消防安全25頁
NFPA 502-2004公路隧道、橋樑和限制級高速公路38頁
NFPA 505-2005 Fire Safety Standard for Powered Industrial Trucks Including Type Designations, Areas of Use, Conversions, Maintenance, and Operations 2006 Edition
NFPA 505-2006動力工業用車包括類型選派、使用區域、轉化、維修和操作的消防標準23頁
NFPA 51-2002焊接、切割及相關用途的氧氣燃料系統的設計、安裝標準20頁
NFPA 513-1998汽車貨運站16頁
NFPA 51A-2006 Standard for Acetylene Cylinder Charging Plants
NFPA 51B-2003焊接、切割及其它動火施工的防火標準23頁
NFPA 520-2005地下空間的防火23頁
NFPA 52-2005 Vehicular Fuel Systems Code 2006 Edition
NFPA 52-2006汽車燃料系統規範82頁
NFPA 53-2004富氧環境下材料、裝置和系統推薦實施規程60頁
NFPA 54-2005 National Fuel Gas Code 2006 Edition
NFPA 54-2006美國燃氣規範167頁
NFPA 54H-2002美國燃氣規範手冊505頁
NFPA 550-2002消防安全概念樹指南19頁
NFPA 551-2004火災風險評估評價指南30頁
NFPA 55-2005輕便和固定式瓶裝、罐狀壓縮氣體和低溫液的儲存、使用和處理標準60頁
NFPA 555-2004車間飛弧電壓的評定方法指南37頁
NFPA 560-2002用於殺菌和熏煙的環氧乙烷的存儲、處理和使用標準17頁
NFPA 58-2004液化石油氣規範119頁
NFPA 58H ANNEX A-2004 Explanatory Material
NFPA 58H ANNEX B-2004 Properties of LP-Gases
NFPA 58H ANNEX C-2004 Design, Construction, and Requalification of DOT (ICC) Cylinders
NFPA 58H ANNEX D-2004 Design of ASME and API-ASME Containers
NFPA 58H ANNEX E-2004 Pressure Relief Devices
NFPA 58H ANNEX F-2004 Liquid Volume Tables, Computations, and Graphs
NFPA 58H ANNEX G-2004 Wall Thickness of Copper Tubing
NFPA 58H ANNEX H-2004 Procedure for Torch Fire and Hose Stream Testing of Thermal Insulating Systems for LP-Gas Containers
NFPA 58H ANNEX I-2004 Container Spacing
NFPA 58H ANNEX J-2004 Sample Ordinance Adopting NFPA 58頁
NFPA 58H ANNEX K-2004 Informational References
NFPA 58H CHAPTER 10-2004 Buildings or Strutures Housing LP-Gas Distribution Facilities
NFPA 58H CHAPTER 11-2004 Engine Fuel Systems
NFPA 58H CHAPTER 1-2004 Administration
NFPA 58H CHAPTER 12-2004 Refrigerated Containers
NFPA 58H CHAPTER 13-2004 Marine Shipping and Receiving
NFPA 58H CHAPTER 14-2004 Operations and Maintenance
NFPA 58H CHAPTER 15-2004 Pipe and Tubing Sizing Tables
NFPA 58H CHAPTER 2-2004 Referenced Publications
NFPA 58H CHAPTER 3-2004 Definitions
NFPA 58H CHAPTER 4-2004 General Requirements
NFPA 58H CHAPTER 5-2004 LP-Fas Equipment and Appliances
NFPA 58H CHAPTER 6-2004 Installation of LP-Gas Systems
NFPA 58H CHAPTER 7-2004 LP-Gas Liquid Transfer
NFPA 58H CHAPTER 8-2004 Storage of Cylinders Awaiting Use, Resale, or Exchange
NFPA 58H CHAPTER 9-2004 Vehicular Transportation of LP-Gas
NFPA 58H INDEX-2004 Index
NFPA 58H INTRO-2004 LP-Gas Code Handbook Seventh Edition
NFPA 58H PART 1-2004 Liquefied Petroleum Gas Code and Commentary
NFPA 58H PART 2-2004 Supplements
NFPA 58H SUPPLEMENT 1-2004 Guidelines for Conducting a Product Release Prevention and Incident Preparedness Review
NFPA 58H SUPPLEMENT 2-2004 LP-Gas Systems Subject to DOT Pipeline Regulations
NFPA 58H SUPPLEMENT 3-2004 Sizing of Independent Pressure Regulators for Large Propane Systems
NFPA 58H-2004液化石油氣規範手冊520頁
NFPA 59-2004公用液化石油氣設備規範49頁
NFPA 59A-2005 Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG) 2006 Edition; Errata: 06-1; Errata: 06-2; Errata: 06-3頁
NFPA 59A-2006液化天然氣的生產、儲存與處理標準63頁
NFPA 600-2005工業消防隊27頁
NFPA 601-2005安全部門火災損失預防18頁
NFPA 610-2003摩託運動地點的緊急和安全操作61頁
NFPA 61-2002農業和食品處理設備的防火防塵34頁
NFPA 654-2005 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids 2006 Edition
NFPA 654-2006易燃固體微粒生產、加工和處理防火和防爆的預防49頁
NFPA 655-2001硫磺火災和爆炸的預防15頁
NFPA 655-2006 Standard for Prevention of Sulfur Fires and Explosions
NFPA 664-2002森林防火防爆處理和林木工作設備55頁
NFPA 664-2006 Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities
NFPA 68-2002爆燃通風指南66頁
NFPA 69-2002防爆系統標準38頁
NFPA 701-2004紡織品和膠片的火焰蔓延的燃燒試驗24頁
NFPA 703-2005 Standard for Fire Retardant?reated Wood and Fire-Retardant Coatings for Building Materials 2006 Edition
NFPA 703-2006建築材料阻燃型木材和阻燃塗料13頁
NFPA 704-2001危險品緊急處理識別系統25頁
NFPA 704-2006 Standard System for the Identification of the Hazards of Materials for Emergency Response 2007 Edition
NFPA 705-2003紡織品和膠片野外火焰試驗13頁
NFPA 70A-2005 National Electrical Code Requirements for One-and Two-Family Dwellings
NFPA 70B-2006 Recommended Practice for Electrical Equipment Maintenance
NFPA 70E-2004工作場所電氣安全139頁
NFPA 70EH ANNEX-2004 Referenced Publications
NFPA 70EH CH 1-2004 Safety-Related Work Practices
NFPA 70EH CH 2-2004 Safety-Related Maintenance Requirements
NFPA 70EH CH 3-2004 Safety Requirements for Special Equipment
NFPA 70EH CH 4-2004 Installation Safety Requirements
NFPA 70EH INDEX-2004 Index
NFPA 70EH INTRO-2004 Handbook for Electrical Safety in the Workplace
NFPA 70EH-2004 Handbook for Electrical Safety in the Workplace
NFPA 70H ANNEX A-2005 Product Safety Standards
NFPA 70H ANNEX B-2005 Application Information for Ampacity Calculation
NFPA 70H ANNEX C-2005 Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size
NFPA 70H ANNEX D-2005 Examples
NFPA 70H ANNEX E-2005 Types of Construction
NFPA 70H ANNEX F-2005 Cross-Reference Tables
NFPA 70H ANNEX G-2005 Administration and Enforcement
NFPA 70H CH 1-2005 General
NFPA 70H CH 2-2005 Wiring and Protection
NFPA 70H CH 3-2005 Wiring Methods and Materials
NFPA 70H CH 4-2005 Equipment for General Use
NFPA 70H CH 5-2005 Special Occupancies
NFPA 70H CH 6-2005 Special Equipment
NFPA 70H CH 7-2005 Special Conditions
NFPA 70H CH 8-2005 Communications Systems
NFPA 70H CH 9-2005 Tables
NFPA 70H EDIT-2005 About The Editors
NFPA 70H ERRATA-2002 National Electrical Code Handbook
NFPA 70H INDEX-2005 Index
NFPA 70H INTRO-2005 National Electrical Code Handbook Tenth Edition
NFPA 70H INTRODUCTION-2005 Article 90 Introduction
NFPA 70H PREFACE-2005 Preface
NFPA 70H-2005美國電氣規範手冊1344頁
NFPA 720-2005家居用一氧化碳報警器安裝推薦操作19頁
NFPA 72-2006 National Fire Alarm Code 2007 Edition
NFPA 72H ANNEX A-2002 Explanatory Material
NFPA 72H ANNEX B-2002 Engineering Guide for Automatic Fire Detector Spacing
NFPA 72H ANNEX C-2002 Wiring Diagrams and Guide for TEsting Fire Alarm Circuits
NFPA 72H ANNEX D-2002 Sample Ordinance Adopting NFPA 72頁
NFPA 72H ANNEX E-2002 Informational References
NFPA 72H ANNEX F-2002 Cross-Reference Tables
NFPA 72H CHAPTER 10-2002 Inspection, Testing, and Maintenance
NFPA 72H CHAPTER 11-2002 Single- and Multiple-Station Alarms and Household Fire Alarm Systems
NFPA 72H CHAPTER 1-2002 Administration
NFPA 72H CHAPTER 2-2002 Referenced Publications
NFPA 72H CHAPTER 3-2002 Definitions
NFPA 72H CHAPTER 4-2002 Fundamentals of Fire Alarm Systems
NFPA 72H CHAPTER 5-2002 Initiating Devices
NFPA 72H CHAPTER 6-2003 Protected Premises Fire Alarm Systems
NFPA 72H CHAPTER 7-2002 Notification Appliances for Fire Alarm Systems
NFPA 72H CHAPTER 8-2002 Supervising Station Fire Alarm Systems
NFPA 72H CHAPTER 9-2002 Public Fire Alarm Reporting Systems
NFPA 72H INDEX-2002 Index
NFPA 72H INTRO-2002 National Fire Alarm Code Handbook
NFPA 72H PART ONE-2002 National Fire Alarm Code, 2002 Edition, with Commentary
NFPA 72H PART TWO-2002 Supplements
NFPA 72H SUPPLEMENT 1-2002 Performance-Based Design and Fire Alarm Systems
NFPA 72H SUPPLEMENT 2-2002 Interfacing Fire Alarm Systems and Elevator Controls
NFPA 72H SUPPLEMENT 3-2002 Integrating Building Systems for Greater Operational Efficiency頁
NFPA 72H SUPPLEMENT 4-2002 Occupant Response to Fire Alarm Signals
NFPA 72H SUPPLEMENT 5-2002 Voice Intelligibility for Emergency Voice/Alarm Communications Systems
NFPA 72H SUPPLEMENT 6-2002 Examples of Filled-Out Forms
NFPA 54-2005 National Fuel Gas Code 2006 Edition
NFPA 54-2006美國燃氣規範167頁
NFPA 54H-2002美國燃氣規範手冊505頁
NFPA 550-2002消防安全概念樹指南19頁
NFPA 551-2004火災風險評估評價指南30頁
NFPA 55-2005輕便和固定式瓶裝、罐狀壓縮氣體和低溫液的儲存、使用和處理標準60頁
NFPA 555-2004車間飛弧電壓的評定方法指南37頁
NFPA 560-2002用於殺菌和熏煙的環氧乙烷的存儲、處理和使用標準17頁
NFPA 58-2004液化石油氣規範119頁
NFPA 58H ANNEX A-2004 Explanatory Material
NFPA 58H ANNEX B-2004 Properties of LP-Gases
NFPA 58H ANNEX C-2004 Design, Construction, and Requalification of DOT (ICC) Cylinders
NFPA 58H ANNEX D-2004 Design of ASME and API-ASME Containers
NFPA 58H ANNEX E-2004 Pressure Relief Devices
NFPA 58H ANNEX F-2004 Liquid Volume Tables, Computations, and Graphs
NFPA 58H ANNEX G-2004 Wall Thickness of Copper Tubing
NFPA 58H ANNEX H-2004 Procedure for Torch Fire and Hose Stream Testing of Thermal Insulating Systems for LP-Gas Containers
NFPA 58H ANNEX I-2004 Container Spacing
NFPA 58H ANNEX J-2004 Sample Ordinance Adopting NFPA 58頁
NFPA 58H ANNEX K-2004 Informational References
NFPA 58H CHAPTER 10-2004 Buildings or Strutures Housing LP-Gas Distribution Facilities
NFPA 58H CHAPTER 11-2004 Engine Fuel Systems
NFPA 58H CHAPTER 1-2004 Administration
NFPA 58H CHAPTER 12-2004 Refrigerated Containers
NFPA 58H CHAPTER 13-2004 Marine Shipping and Receiving
NFPA 58H CHAPTER 14-2004 Operations and Maintenance
NFPA 58H CHAPTER 15-2004 Pipe and Tubing Sizing Tables
NFPA 58H CHAPTER 2-2004 Referenced Publications
NFPA 58H CHAPTER 3-2004 Definitions
NFPA 58H CHAPTER 4-2004 General Requirements
NFPA 58H CHAPTER 5-2004 LP-Fas Equipment and Appliances
NFPA 58H CHAPTER 6-2004 Installation of LP-Gas Systems
NFPA 58H CHAPTER 7-2004 LP-Gas Liquid Transfer
NFPA 58H CHAPTER 8-2004 Storage of Cylinders Awaiting Use, Resale, or Exchange
NFPA 58H CHAPTER 9-2004 Vehicular Transportation of LP-Gas
NFPA 58H INDEX-2004 Index
NFPA 58H INTRO-2004 LP-Gas Code Handbook Seventh Edition
NFPA 58H PART 1-2004 Liquefied Petroleum Gas Code and Commentary
NFPA 58H PART 2-2004 Supplements
NFPA 58H SUPPLEMENT 1-2004 Guidelines for Conducting a Product Release Prevention and Incident Preparedness Review
NFPA 58H SUPPLEMENT 2-2004 LP-Gas Systems Subject to DOT Pipeline Regulations
NFPA 58H SUPPLEMENT 3-2004 Sizing of Independent Pressure Regulators for Large Propane Systems
NFPA 58H-2004液化石油氣規範手冊520頁
NFPA 59-2004公用液化石油氣設備規範49頁
NFPA 59A-2005 Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG) 2006 Edition; Errata: 06-1; Errata: 06-2; Errata: 06-3頁
NFPA 59A-2006液化天然氣的生產、儲存與處理標準63頁
NFPA 600-2005工業消防隊27頁
NFPA 601-2005安全部門火災損失預防18頁
NFPA 610-2003摩託運動地點的緊急和安全操作61頁
NFPA 61-2002農業和食品處理設備的防火防塵34頁
NFPA 654-2005 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids 2006 Edition
NFPA 654-2006易燃固體微粒生產、加工和處理防火和防爆的預防49頁
NFPA 655-2001硫磺火災和爆炸的預防15頁
NFPA 655-2006 Standard for Prevention of Sulfur Fires and Explosions
NFPA 664-2002森林防火防爆處理和林木工作設備55頁
NFPA 664-2006 Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities
NFPA 68-2002爆燃通風指南66頁
NFPA 69-2002防爆系統標準38頁
NFPA 701-2004紡織品和膠片的火焰蔓延的燃燒試驗24頁
NFPA 703-2005 Standard for Fire Retardant?reated Wood and Fire-Retardant Coatings for Building Materials 2006 Edition
NFPA 703-2006建築材料阻燃型木材和阻燃塗料13頁
NFPA 704-2001危險品緊急處理識別系統25頁
NFPA 704-2006 Standard System for the Identification of the Hazards of Materials for Emergency Response 2007 Edition
NFPA 705-2003紡織品和膠片野外火焰試驗13頁
NFPA 70A-2005 National Electrical Code Requirements for One-and Two-Family Dwellings
NFPA 70B-2006 Recommended Practice for Electrical Equipment Maintenance
NFPA 70E-2004工作場所電氣安全139頁
NFPA 70EH ANNEX-2004 Referenced Publications
NFPA 70EH CH 1-2004 Safety-Related Work Practices
NFPA 70EH CH 2-2004 Safety-Related Maintenance Requirements
NFPA 70EH CH 3-2004 Safety Requirements for Special Equipment
NFPA 70EH CH 4-2004 Installation Safety Requirements
NFPA 70EH INDEX-2004 Index
NFPA 70EH INTRO-2004 Handbook for Electrical Safety in the Workplace
NFPA 70EH-2004 Handbook for Electrical Safety in the Workplace
NFPA 70H ANNEX A-2005 Product Safety Standards
NFPA 70H ANNEX B-2005 Application Information for Ampacity Calculation
NFPA 70H ANNEX C-2005 Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size
NFPA 70H ANNEX D-2005 Examples
NFPA 70H ANNEX E-2005 Types of Construction
NFPA 70H ANNEX F-2005 Cross-Reference Tables
NFPA 70H ANNEX G-2005 Administration and Enforcement
NFPA 70H CH 1-2005 General
NFPA 70H CH 2-2005 Wiring and Protection
NFPA 70H CH 3-2005 Wiring Methods and Materials
NFPA 70H CH 4-2005 Equipment for General Use
NFPA 70H CH 5-2005 Special Occupancies
NFPA 70H CH 6-2005 Special Equipment
NFPA 70H CH 7-2005 Special Conditions
NFPA 70H CH 8-2005 Communications Systems
NFPA 70H CH 9-2005 Tables
NFPA 70H EDIT-2005 About The Editors
NFPA 70H ERRATA-2002 National Electrical Code Handbook
NFPA 70H INDEX-2005 Index
NFPA 70H INTRO-2005 National Electrical Code Handbook Tenth Edition
NFPA 70H INTRODUCTION-2005 Article 90 Introduction
NFPA 70H PREFACE-2005 Preface
NFPA 70H-2005美國電氣規範手冊1344頁
NFPA 720-2005家居用一氧化碳報警器安裝推薦操作19頁
NFPA 72-2006 National Fire Alarm Code 2007 Edition
NFPA 72H ANNEX A-2002 Explanatory Material
NFPA 72H ANNEX B-2002 Engineering Guide for Automatic Fire Detector Spacing
NFPA 72H ANNEX C-2002 Wiring Diagrams and Guide for TEsting Fire Alarm Circuits
NFPA 72H ANNEX D-2002 Sample Ordinance Adopting NFPA 72頁
NFPA 72H ANNEX E-2002 Informational References
NFPA 72H ANNEX F-2002 Cross-Reference Tables
NFPA 72H CHAPTER 10-2002 Inspection, Testing, and Maintenance
NFPA 72H CHAPTER 11-2002 Single- and Multiple-Station Alarms and Household Fire Alarm Systems
NFPA 72H CHAPTER 1-2002 Administration
NFPA 72H CHAPTER 2-2002 Referenced Publications
NFPA 72H CHAPTER 3-2002 Definitions
NFPA 72H CHAPTER 4-2002 Fundamentals of Fire Alarm Systems
NFPA 72H CHAPTER 5-2002 Initiating Devices
NFPA 72H CHAPTER 6-2003 Protected Premises Fire Alarm Systems
NFPA 72H CHAPTER 7-2002 Notification Appliances for Fire Alarm Systems
NFPA 72H CHAPTER 8-2002 Supervising Station Fire Alarm Systems
NFPA 72H CHAPTER 9-2002 Public Fire Alarm Reporting Systems
NFPA 72H INDEX-2002 Index
NFPA 72H INTRO-2002 National Fire Alarm Code Handbook
NFPA 72H PART ONE-2002 National Fire Alarm Code, 2002 Edition, with Commentary
NFPA 72H PART TWO-2002 Supplements
NFPA 72H SUPPLEMENT 1-2002 Performance-Based Design and Fire Alarm Systems
NFPA 72H SUPPLEMENT 2-2002 Interfacing Fire Alarm Systems and Elevator Controls
NFPA 72H SUPPLEMENT 3-2002 Integrating Building Systems for Greater Operational Efficiency頁
NFPA 72H SUPPLEMENT 4-2002 Occupant Response to Fire Alarm Signals
NFPA 72H SUPPLEMENT 5-2002 Voice Intelligibility for Emergency Voice/Alarm Communications Systems
NFPA 72H SUPPLEMENT 6-2002 Examples of Filled-Out Forms
NFPA 704
NFPA 704是美國消防協會制定的危險品緊急處理系統鑑別標準。它提供了一套簡單判斷化學品危害程度的系統，並將其用藍、紅、黃、白四色的警示菱形來表示。
警示菱形按顏色分為四部分：藍色表示健康危害性；紅色表示可燃性；黃色表示反應性；白色用於標記化學品的特殊危害性。前三部分根據危害程度被分為0、1、2、3、4，五個等級，用相應數字標識在顏色區域內。
鑑別標準
藍色
健康危害等級
等級 描述範例
4短時間的暴露可能會導致死亡或重大持續性傷害。 氯化氰、一氧化碳、VX
3短時間的暴露可能導致嚴重的暫時性或持續性傷害。 氯化氫、氯
2高濃度或持續性暴露可能導致暫時失去行為能力或可能造成持續性傷害。氯甲烷、氯仿
1暴露可能導致不適，但是僅可能有輕微持續性傷害。 丙酮
0暴露在火中時對人體造成的危害不超過一般可燃物。 水
紅色
可燃性等級
等級 描述 範例
4在常溫常壓下迅速或完全汽化，或是可以迅速分散在空氣中，可以迅速燃燒。甲烷、氫
3在各種環境溫度下可以迅速被點燃的液體和固體。 汽油
2需要適當加熱或在環境溫度較高的情況下可以被點燃。 柴油
1需要預熱才可點燃。 甘油、魚肝油
0不會燃燒。 水、二氧化碳
黃色
反應活性等級
等級 描述 範例
4可以在常溫常壓下迅速發生爆炸。硝酸甘油、TNT
3可以在某些條件下（如被加熱或與水反應等）發生爆炸。 乙炔、硝酸銨
2在加熱加壓條件下發生劇烈化學變化，或與水劇烈反應可能與水混合後發生爆炸。鈣、白磷
1通常情況下穩定,但是可能在加熱加壓的條件下變得不穩定或可以與水發生反應。氧化鈣、丙烯
0通常情況下穩定，即使暴露於明火中也不反應，並且不與水反應。 氮、氦
白色
特殊危害性
警示菱形的白色區域可能有以下符號：
W（有時被寫作W）：與水發生劇烈反應。如：鈣。
OX（有時被寫作OXY）：氧化劑。如：高錳酸鉀。
以上兩個符號是NFPA 704標準中規定的符號，除此之外，化學品廠商有時還使用以下符號標記在白色區域：
COR：腐蝕性。如：濃硫酸。
ACID：強酸。如：鹽酸。
