NFPA 704是美国消防协会（National Fire Protection Association，简称NFPA）制定的危险品紧急处理系统鉴别标准。 它提供了一套简单判断化学品危害程度的系统，并将其用蓝、红、黄、白四色的警示菱形来表示。

The white "special notice" area can contain several symbols. The following symbols are defined by the NFPA 704 standard. OX: Oxidizer, allows chemicals to burn without an air supply (e.g., potassium perchlorate, ammonium nitrate, hydrogen peroxide). W: Reacts with water in an unusual or dangerous manner (e.g., caesium, sodium, diborane ...

symbols are W, OX and SA. W indicates the material has an unusual reactivity with water and is a caution regarding the use of water in either firefighting or spill control response. OX indicates that the material is an oxidizer which can burn without the presence of oxygen. Examples of oxidizers include potassium

Although NFPA diamond labels commonly are created with a variety of symbols, only three symbols are authorized by the NFPA for use on Hazmat Diamonds: OX, SA and W. These approved symbols are indicated on the dropdown menu above.

2013年4月11日 · Only W with a line thru (water reactivity), OX (oxidizers) and SA (simple asphyxiant gases) are officially part of the NFPA 704 2012 standard. 8.2 Symbols. Special hazards shall be represented by a spatial arrangement denoted by …

Liquid oxygen gives a detonable mixture when combined with powdered aluminum [NFPA 491M. 1991]. Belongs to the Following Reactive Group(s) Oxidizing Agents, Strong

Explore the background of the NFPA diamond, its colors, numbers and legends, as well as sizing and placement as recommended by the NFPA 704 Standard. [1] The NFPA diamond alerts emergency responders to the presence of hazardous materials and their potential effects, and helps them plan an appropriate emergency response.

危险品菱形标识，又叫危险品四色图，基于 NFPA 704 美国消防协会制定的危险 品紧急理系统鉴别标准。 危险品菱形标签由三个菱形内填写有数字，数字表示危险等级。 按照 NFPA704 标准，危险等级一共被非为五个，分别是 0，1，2，3，4。 其中 0 代表的危险性最小，4 代表危险性最大。 危险品菱形标签的下面的菱形内 只出现字母，代表其特殊的危险性或者注意事项。 以下为酒精的危险品菱形标识： 生。 柴油 1 代表必须预先加热才能燃烧。 例如， 矿物油。 0 代表不会燃 …

Pre-printed NFPA Placard (OX) Oxidizing Hazard Symbol, designed for on-the-spot classification of potentially hazardous chemicals