What is ordinary hazard?

Ordinary Hazard (Group 1) — This classification applies to spaces in which the combustibility of materials present is low and the quantity is moderate, with no stockpiles of combustible material exceeding 8 feet (2.4 meters).

Are mechanical rooms ordinary hazard?

ORDINARY HAZARD, GROUP 1:

C Examples: - Parking garages - Kitchens - Mechanical rooms - Storage rooms with storage height of 8 feet or less (and meeting the above cri- teria for the quantity and combustibility of contents).

What is occupancy hazard?

The occupancy hazard rating is a way to classify an occupancy with a number that can be used in the formula to determine minimum water suppliesneeded for the structure. In the formula, the occupancy hazard number ranges from 3 through 7, and the occupancies with a greater hazard receive lower classification numbers.

Is a restaurant light hazard?

Some of the light hazard areas may consist of hospitals, educational institutions, meeting rooms, libraries (aside from massive stack rooms), nursing homes, residential areas, auditoriums and theatres (aside from prosceniums and stages), seating areas in restaurants, offices, and data processing.

What is the classification of sprinkler?

Sprinkler systems are classified in accordance with the hazard classifications: light, ordinary and high hazard. These hazards determine the characteristics of the installation with reference to the number of pumps required, the distance from each sprinkler, the number of sprinklers and the type of water supply.

Ordinary Hazards

What are the 4 types of sprinkler systems?

Types of sprinkler systems permissible by NFPA 13, Standard for the Installation of Sprinkler Systems, are wet, dry, preaction, and deluge.

What are Class A plastics?

Commodity Classifications are broken down into Classes I through IV and Group A though C plastics with Class I being the lowest hazard level and Group A expanded plastics being the highest hazard level.

What are the classification of hazards?

GHS uses three hazard classes: Health Hazards, Physical Hazards and Environmental Hazards. These aren't required by OSHA. Health hazards present dangers to human health (i.e. breathing or vision) while physical hazards cause damage to the body (like skin corrosion).

What is a Class B hazard?

In fire classes, a Class B fire is a fire in flammable liquids or flammable gases, petroleum greases, tars, oils, oil-based paints, solvents, lacquers, or alcohols. For example, propane, natural gas, gasoline and kerosene fires are types of Class B fires.

What is class A fire hazard?

Class A—fires involving ordinary combustibles, such as paper, trash, some plastics, wood and cloth. A rule of thumb is if it leaves an ash behind, it is a Class A fire. Class B—fires involving flammable gases or liquids, such as propane, oil. and gasoline. Class C—fires involving energized electrical components.

What are light hazard occupancies?

Light hazard occupancies shall be defined as occupancies or portions of other occupancies where the quantity and/or combustibility of contents is low and fires with relatively low rates of heat release are expected.

How is hazard occupancy calculated?

The basic approach for this determination is to compare the amount of hazardous material present (for each hazardous material category in each control area) to the limits from the IBC. If the quantity exceeds the limit, the area should be classified as Group H occupancy.

What is a hazard room?

hazardous room means, with respect to an industrial establishment, a room containing a substance which, because of its chemical nature, the form in which the substance exists or its handling or processing, may explode or become easily ignited creating a condition of imminent hazard to a person's health or safety.

Where does NFPA 75 apply?

NFPA 75 essentially applies to areas that house large server racks or equipment, sometimes operating up to 30 kW per rack. These areas are what we would refer to as "server rooms" or "data farms." Thus, it is clear that NFPA 75 generally doesn't apply to office areas or small rooms.

How far can a sprinkler head be from a wall?

from a single wall. Again, normally, standard spray sprinklers can be placed up to 7.5 ft. (2.3 m) from any wall.

What are the 3 types of hazards?

All hazards are assessed and categorized into three groups: biological, chemical and physical hazards. A general definition of a hazard as related to food safety is conditions or contaminants that can cause illness or injury.

What are the 5 types of hazards?

What are the 6 types of hazards?

What is the meaning of commodity trade classification in Zerodha?

Commodity trading in Zerodha allows investors to invest and trade in commodities like gold, silver, metals, oil, and other agricultural products through Zerodha Kite. Zerodha provides commodity futures and options trading to its customers through Zerodha Commodities Pvt Limited that holds MCX membership.

What is a Group B plastic?

Group B plastics include cellulosics, chloroprene rubber, fluoroplastics (ECTFE, ETFE, FEP), unexpanded natural rubber, nylon, PVC (polyvinyl chloride greater than 5-percent, but not exceeding 15-percent plasticized) and silicone rubber.

What is the K value of a sprinkler head?

K-factors can be determined by using the following equation: K = Q/P1/2, where K is represented by gallons per minute, or gpm/psi1/2, Q is flow rate in gpm and P is pressure in psi, or pounds of force.

What does K factor mean in sprinklers?

The k-factor for a fire sprinkler is the discharge coefficient, or in normal human terms just relates to the amount of water that is permitted through the sprinkler. The k-factor is dependent upon the orifice diameter of the sprinkler - a low k-factor (such as K2.

What does RTI stand for in sprinkler?

One of these characteristics, thermal sensitivity, is a measurement of how quickly a particular thermal element in a particular sprinkler assembly will operate. The most commonly known measure of thermal sensitivity is the response time index (RTI).