IDLH

IDLH

Definition(s)

IDLH

The NIOSH traditional definition is the maximum concentration of an air contaminant from which one could escape within 30 min. without a respirator and without experiencing any escape-impairing or irreversible health effects. API RP 2201, Safe Hot Tapping Practices in the Petroleum & Petrochemical Industries, Fifth Edition, July 2003 (Reaffirmed October 2010), Global Standards

IDLH

Immediately Dangerous to Life or Health. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards  

IDLH

Value defined by OSHA in their HAZWOPER regulation as an atmospheric concentration of any toxic, corrosive or asphyxiating substance that poses an immediate threat to life or would cause irreversible or delayed adverse health effects or would interfere with an individual's ability to escape from a dangerous atmosphere” (29 CFR 1910.120). Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards  

IDLH

The traditional NIOSH definition for published IDLH values is the maximum concentration of an air contaminant from which one could escape within 30 minutes without a respirator and without experiencing any escape-impairing or irreversible health effects. Total loss of respiratory protection in an inert atmosphere can cause virtually immediate impairment and result in rapid asphyxiation. While inert atmospheres are indeed “IDLH” by NIOSH criteria, the hazard is much more immediate and severe. Source: API Standards 2217A, Guidelines for Safe Work in Inert Confined Spaces in the Petroleum and Petrochemical Industries, Fourth Edition, July 2009. Global Standards  

IDLH

Immediately dangerous to life or health. Source: API Standards 2217A, Guidelines for Safe Work in Inert Confined Spaces in the Petroleum and Petrochemical Industries, Fourth Edition, July 2009. Global Standards
H2S

H2S

Definition(s)

H2S

Hydrogen sulfide. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global Standards Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards  

H2S

An abbreviation for hydrogen sulfide. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

H2S

Hydrogen Sulphide. Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global Standards Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. IADC Guidelines Source: OGP Report No. 476, Recommendations for enhancements to well control training, examination and certification, International Association of Oil & Gas Producers, October 2012. Global Standards  

H2S

Colorless, flammable, extremely hazardous gas with a “rotten egg” smell that occurs naturally in crude petroleum, natural gas, and hot springs and is produced by bacterial breakdown of organic materials and human and animal wastes (e.g. sewage). NOTE 1 Some common names for the gas include sewer gas, stink damp, swamp gas, and manure gas. NOTE 2 Industrial activities that can produce the gas include petroleum/natural gas drilling and refining, wastewater treatment, coke ovens, tanneries, and paper mills. Hydrogen sulfide can also exist as a liquid compressed gas. Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards  

H2S

“H2S” means hydrogen sulfide. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations  
Hydrogen Sulfide

Hydrogen Sulfide

Definition(s)

Hydrogen sulfide

Chemical formula is H2S. A flammable, toxic gas that is heavier than air and sometimes found in fluids encountered in oil and gas producing and gas processing operations. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards  

Hydrogen sulfide (H2S)

A highly toxic, flammable, corrosive gas sometimes encountered in hydrocarbon bearing formations. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards    

Hydrogen Sulfide (H2S)

A highly toxic, flammable corrosive gas sometimes encountered in hydrocarbon bearing formations. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  

Hydrogen Sulfide (H2S)

Colorless, flammable, extremely hazardous gas with a “rotten egg” smell that occurs naturally in crude petroleum, natural gas, and hot springs and is produced by bacterial breakdown of organic materials and human and animal wastes (e.g. sewage). NOTE 1 Some common names for the gas include sewer gas, stink damp, swamp gas, and manure gas. NOTE 2 Industrial activities that can produce the gas include petroleum/natural gas drilling and refining, wastewater treatment, coke ovens, tanneries, and paper mills. Hydrogen sulfide can also exist as a liquid compressed gas. Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards
HAZWOPER

HAZWOPER

Definition(s)

HAZWOPER

Hazardous Waste Operations and Emergency Response. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
Gas Detection Instrument

Gas Detection Instrument

Definition(s)

Gas detection instrument

An assembly of electrical, mechanical, and chemical components designed to sense and respond continuously to the presence of chemical gases in atmospheric mixtures. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
FR

FR

Definition(s)

FR

Federal Register. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards  

fr

Reduction factor.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
Essential Personnel

Essential Personnel

Definition(s)

Essential personnel

Those individuals required to provide proper and prudent safe operations activities and those required to effect control of the hazardous hydrogen sulfide or sulfur dioxide conditions. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
EPCRA

EPCRA

Definition(s)

EPCRA

Emergency Planning and Community Right-to-Know Act. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
EPA

EPA

Definition(s)

EPA

U. S. Environmental Protection Agency .

Source: API RP 781 Security Plan Methodology for the Oil and Natural Gas Industries.1st Ed. September 2016. Global Standards

EPA

Environmental Protection Agency. Source: API STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. Global Standards Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards  

EPA

“EPA” means the United States environmental protection agency. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations
Enclosed Facility

Enclosed Facility

Definition(s)

Enclosed facility

A three-dimensional space enclosed by more than 2/3 of the possible projected plane surface and of sufficient size to allow the entry of personnel. For a typical building, this would require that more than 2/3 of the walls, ceiling, and floor be present. Refer to API RP 500 and RP 505. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
EMI

EMI

Definition(s)

EMI

Electromagnetic inspection. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards Source: API SPEC 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, Upstream Segment, First Edition, February 2010 (Errata August 2011). Global Standards Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards  

EMI

Electromagnetic interference. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
DOT

DOT

Definition(s)

DOT

Department of Transportation. API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards Source: API RP 14G, Recommended Practice for Fire Prevention and Control on Fixed Open-type Offshore Production Platforms: Upstream Segment, Fourth Edition, April 2007. Global Standards

DOT

U. S. Department of Transportation. Source: API RP 781 Security Plan Methodology for the Oil and Natural Gas Industries.1st Ed. September 2016. Global Standards Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
DOL

DOL

Definition(s)

DOL

U. S. Department of Labor. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
DOI

DOI

Definition(s)

DOI

Department of Interior API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards

DOI

U. S. Department of Interior. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
DC

DC

Definition(s)

DC

Direct current. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global Standards Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
Continuous Hydrogen Sulfide Monitoring Equipment

Continuous Hydrogen Sulfide Monitoring Equipment

Definition(s)

Continuous hydrogen sulfide monitoring equipment

Equipment capable of continuously measuring and displaying the concentration of hydrogen sulfide in ambient air. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
CERCLA

CERCLA

Definition(s)

CERCLA

Comprehensive Environmental Response, Compensation, and Liability Act. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
CFR

CFR

Definition(s)

CFR

Code of Federal Regulations. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API RP 14G, Recommended Practice for Fire Prevention and Control on Fixed Open-type Offshore Production Platforms: Upstream Segment, Fourth Edition, April 2007. Global Standards Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
CAS

CAS

Definition(s)

CAS

Chemical Abstract Service. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API SPEC 13A, Specification for Drilling Fluids Materials, Eighteenth Edition, February 2010. Global Standards
Breathing Zone

Breathing Zone

Definition(s)

Breathing zone

Generally, a hemisphere forward of the shoulders with a radius of 6 in. to 9 in. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
Action Levels

Action Levels

Definition(s)

Action levels

Observed condition or measured level of exposure to a harmful substance, condition, or hazard that would identify the need for the implementation of a management action, at times determined by regulatory mandate, appropriate to address such condition. Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards

Action levels

The levels at which the possibility of hydrogen sulfide atmospheric concentrations greater than 10 ppm or sulfur dioxide atmospheric concentrations greater than 2 ppm may be encountered. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards

ACGIH

ACGIH

Definition(s)

ACGIH

American Conference of Governmental Industrial Hygienists. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards
Acceptable Ceiling Concentration

Acceptable Ceiling Concentration

Definition(s)

Acceptable ceiling concentration (ACC)

The designated level of an air contaminant to which an employee may be exposed at any time during an 8-hour shift, except for a time period and up to a concentration not exceeding the “acceptable maximum peak above the acceptable ceiling concentration for an 8-hour shift.” Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
ACC

ACC

Definition(s)

ACC

American Chemistry Council.

Source: API RP 781 Security Plan Methodology for the Oil and Natural Gas Industries.1st Ed. September 2016. Global Standards

ACC

Acceptable ceiling concentration. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards
Number, Temperature Identification (T Code/Temperature Class)

Number, Temperature Identification (T Code/Temperature Class)

Definition(s)

Number, temperature identification (T Code/Temperature Class)

A system of classification by which one of 14 temperature identification numbers (for zones, six temperature classes) is allocated to apparatus. The temperature identification number represents the maximum surface temperature of any part of the apparatus that may come in contact with the flammable gas or vapor mixture. Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards

Number, temperature identification (T Code/Temperature Class)

A system of classification by which one of 14 temperature identification numbers (for zones, six temperature classes) is allocated to apparatus. The temperature identification number represents the maximum surface temperature of any part of the apparatus that may come in contact with the flammable gas or vapor mixture. Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards
High-temperature Devices

High-temperature Devices

Definition(s)

High-temperature devices

High-temperature devices are defined as those devices whose maximum operating temperature exceed 80 % of the autoignition temperature in degrees Celsius (°C) of the gas or vapor involved.

Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards  

High-temperature devices

A device whose maximum operating temperature exceeds 80 % of the auto-ignition temperature, expressed in degrees Celsius (°C), of the gas or vapor involved, or whose maximum operating temperature exceeds 100 % of the auto-ignition temperature, expressed in degrees Celsius (°C), of the gas or vapor involved when listed or labeled or otherwise approved by the authority having jurisdiction. API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards

High-temperature devices

High-temperature devices are defined as those devices whose maximum operating temperature exceed 80 % of the ignition temperature in degrees Celsius (°C) of the gas or vapor involved. The maximum operating temperature refers to the skin temperature of components in the interior of enclosures and to the surface temperature of lamps inside lighting fixtures. For offshore applications, the most commonly encountered explosive gas is natural gas, composed primarily of methane. The ignition temperature of natural gas is usually considered to be 900 °F (482 °C) and any device whose operating temperature exceeds 726 °F (386 °C) in natural gas environments should be considered a high-temperature device. The ignition temperature of hydrogen sulfide is usually considered to be 500 °F (260°C) and any device whose operating temperature exceeds 406 °F (208 °C) in H2S environments should be considered a high-temperature device. A review of production installations should be made to determine the presence of other gases with lower ignition temperatures. Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards

Gas, Protective

Gas, Protective

Definition(s)

Gas, protective

The gas used for pressurization or for the dilution of flammable gases to a level well below their lower explosive limit, usually below 25% LFL/LEL. The protective gas may be air, nitrogen, other nonflammable gas, or a mixture of such gases. Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards
Space, Machinery

Space, Machinery

Definition(s)

Space, Machinery

An enclosed area that contains rotating equipment or internal combustion machinery with a total aggregate power is at least 500 brake horsepower or a place containing internal combustion machinery, thermal fluid heaters, or fired boilers that use fuel gas or a liquid fuel that has a flash point of less than 43.3 °C (110 °F). Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards

Space, machinery

An enclosed area that contains rotating equipment exceeding 10 hp. Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards
Protection

Protection

Definition(s)

Protection, special

An IEG protection technique other than those that have been standardized. This type of protection is referred to by IEG 60079-0 as "s." Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards  

Protection, type of

The specific measures applied to electrical apparatus to avoid ignition of a surrounding explosive atmosphere. Examples are "e" and "n." Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards  

Protection

Protection as mentioned in the second subsection, means, inter alia, that the equipment shall be located in such a manner that communication is not disrupted. Source: Guidelines Regarding the Facilities Regulations, Norway, updated December 2012. Regulatory Guidance  

Protection

Protection as mentioned in the second subsection, means e.g. that the equipment shall be located such that communication is not interrupted. Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory Guidance  
Location Requiring an Exceptional Degree of Protection

Location Requiring an Exceptional Degree of Protection

Definition(s)

Location requiring an exceptional degree of protection

A location exposed to weather, seas, splashing, pressure-directed liquids, or similar moisture conditions. These locations include a) on-deck areas; b) machinery spaces; c) cargo spaces; d) locations within a galley or pantry area, laundry, or water closet that contains a shower or bath; and e) other spaces with similar environmental conditions. Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards