Fire hazard classification formula: 4 categories and 8 grades.

The grading formulas of fire hazard grades 4 and 8 are as follows:

Slightly graded place

Formula: 24 brigade, young and old, corridor closed.

Moderately dangerous horizontal field

First-order formula:

Gaomin Tourism Office, Guang Cai refers to the post office. Medical exhibition documents, movie music code lighters. Guo Mu Shi Boku; 5,000 businessmen and 1,000 plots of land.

Secondary formula:

Car dance book big May Day; Eight, three and a half years old. Tobacco, wine, grain, wood, paper, medicine; Cotton, wool, silk, hemp and leather.

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Places with serious danger levels

The first-level formula: big eight, three choose half; Combustible liquid of printing wine.

Second-class formula: combustible solid studio, blue paint solvent grape trellis.

Warehouse grade

First-class formula: tobacco, alcohol and food are packed in wooden cases and cartons, which are not difficult to burn.

The second formula: all three are me except one.

Three-level formula: plastic rubber and asphalt.

Fire hazard classification can be divided into four categories: production, storage, combustible gas and combustible liquid. Among them, the fire risk classification of production is divided into A, B, C, D and E levels. The fire hazard classification of stored goods is divided into Class A, Class B, Class C, Class D and Class E.. The fire hazard classification of combustible gas is divided into Class A and Class B. ..

The fire hazard level is divided into mild hazard level, moderate hazard level, severe hazard level and warehouse hazard level. Light hazard level refers to office buildings and hotels with a building height less than 24m. Medium risk level refers to high-rise civil buildings, public buildings, cultural heritage buildings and industrial buildings. Severe danger level refers to preparations and workshops of printing plants, alcoholic products, flammable liquid products and other factories.