What is the difference between API 500 and API 505?

What is the difference between API 500 and API 505?

API RP 500 “Unclassified locations (non-hazardous location) are locations determined to neither be Class1 , Division 1 or Class 1, Division 2 or any combination thereof.” API RP 505 and “Unclassified locations (non-hazardous location) are locations not classified as Division 1 or Division 2 or Zone 0, Zone 1 or Zone 2. …

What is API RP?

API RP 1173, Pipeline Safety Management Systems, is a recommended practice released by the American Petroleum Institute establishing a pipeline safety management systems (PSMS) framework for organizations that operate hazardous liquids and gas pipelines jurisdictional to the US Department of Transportation.

What is nec505?

NEC 505 defines the following: A place in which an explosive atmosphere in the form of a gas/vapor (or cloud of combustible dust) in air… Zone 0 (Zone 20) …is present continuously, or for long periods or frequently. Zone 1 (Zone 21) …is likely to occur in normal operation occasionally.

How do you classify hazardous areas?

Hazardous area classification divides areas in to Zones based on the likely frequency and duration of a release, release rate, concentration, velocity and ventilation of the area.

What are API standards?

American Petroleum Institute (API) standards advocate proven, sound engineering and operating practices and safe, interchangeable equipment and materials from drill bits to environmental protection.

How many API standards are there?

In its first 100 years, API has developed more than 700 standards to enhance operational safety, environmental protection and sustainability across the industry, especially through these standards being adopted globally.

What is a Class 1 Div 1 area?

Class I, Division 1 classified locations. An area where ignitable concentrations of flammable gases, vapors or liquids can exist all of the time or some of the time under normal operating conditions. A Class I, Division 1 area encompasses the combination of Zone 0 and Zone 1 areas.

What is nec500?

NEC 500 defines the Division System: Class III – Contains easily ignitable fibers or flyings in the air. However, the quantity of fibers and flyings suspended in the air are not likely to be large enough to cause an explosion.

What is Zone 2 offshore?

Zone 2 is a place in which an explosive atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only. These areas only become hazardous in case of an accident or some unusual operating condition.

What is an ATEX zone?

ATEX generally refers to the hazard of explosive atmospheres occurring in the workplace due to the presence of flammable gasses or combustible dust mixed in air, which can give rise to the risk of explosion.

Is API a standard or code?

API was formed in 1919 as a standards-setting organization and is the global leader in convening subject matter experts across segments to establish, maintain, and distribute consensus standards for the oil and gas industry.

What is API standard for oil?

The service rating of passenger car and commercial automotive motor oils is classified by the American Petroleum Institute (API). The program certifies that engine oil meets certain Original Equipment Manufacturer (OEM) quality and performance standards.