Sunday, December 18, 2011

List of Important American Codes, Standards, Specifications related to NDT

American National Standards Institute (ANSI)
ANSI is the primary organization that is responsible for coordinating the activities of all other standard  writing  organizations.   ANSI  primarily  reviews  and  certifies  that  the  standards  are correct.   ANSI has established specific guidelines for the formation of other standard bodies such as ASME and AWS.  Recently, several ANSI piping standards (B31.1, B31.3, B31.4 and B31.8) have been reclassified as ASME documents.

American Society of Mechanical Engineers (ASME)
ASME Codes are among the most widely used in the petrochemical industry and they govern items  such  as  pressure  vessels,  boilers,  and  piping.
          The  following  is  a  list  of  the  ASME Codes
1. ASME Code B31.1
2. ASME Code B31.3
3. ASME Code B31.4
4.  ASME Code B31.8
5.  ASME Boiler and Pressure Vessel Code, Section I
6.  ASME Boiler and Pressure Vessel Code, Section IV
7.  ASME Boiler and Pressure Vessel Code, Section V
8.  ASME Boiler and Pressure Vessel Code, Section VIII

ASME  Code  B31.1- Power  Piping
Pertains  to  the  design,  materials,  fabrication,  test,  and inspection of power and auxiliary piping.   Typical systems include steam, water,  gas,  oil,  and  air  services  that  support  electric  power  generation. 
ASME Code B31.3 - Chemical Plant and Petroleum Refinery Piping
Pertains to the design, materials, fabrication, test, and inspection of chemical piping systems.   Typical applications include on-plot stripping steam, crude oil, acid, caustic, sour water, and cooling systems that are used to refine petroleum products.  
ASME  Code  B31.4  -  Liquid  Transportation  Systems  for  Hydrocarbons,  Liquid  Petroleum Gas,  Anhydrous  Ammonia,  and  Alcohols
Pertains  to  the  design,  construction,  inspection, testing,  operation,  and  maintenance  of  liquid  petroleum  and  anhydrous  ammonia  piping systems. Typical   applications   include   off-shore   and   off-plot   cross-country   pipelines, terminals, and tank farms. 
ASME  Code  B31.8  -  Gas  Transmission  and  Distribution  Piping  Systems
Pertains  to  the design,  fabrication,  installation,  inspection,  testing,  and  operation  of  gas  transmission  and distribution systems (including gas pipelines), gas compressor stations, and gas metering and regulating  stations.
ASME Boiler and Pressure Vessel Code, Section I - Power Boilers
Pertains to the design, material  selection,  fabrication,  inspection,  testing,  and  certification  of  power  boilers  that exceed 15 psi for steam service and that exceed 160 psi and/or 250oF for hot water service.
ASME  Boiler  and  Pressure  Vessel  Code,  Section  IV  -  Heating  Boilers
Pertains  to  the design, material selection, fabrication, inspection, testing, and certification of heating boilers that do not exceed 15 psi for steam service or that do not exceed 160 psi and 250oF for hot water  service. 
ASME Boiler and Pressure Vessel Code, Section V - Nondestructive Examination
Provides requirements  and  methods  for  NDT  that  include  radiographic,  ultrasonic,  liquid  penetrant, magnetic  particle,  eddy  current,  visual  examination,  leak  testing,  and  acoustic  emission.
ASME  Boiler  and  Pressure  Vessel  Code,  Section  VIII  -  Pressure  Vessels
Pertains  to  the design, material selection, fabrication, inspection, testing, and certification of pressure vessels. The  three  classes  of  pressure  vessels  that  are  covered  by  this  code  are  welded,  forged,  and brazed. Typical  applications  include  steam  generators,  heat  exchangers,  hydrocrackers, fractionation  towers,  reformer  reactors,  and  other  components  that  are  designed  to  contain fluids  or  vapors  at  high  temperatures  and  pressures.

American Society for Nondestructive Testing (ASNT)
ASNT is an organization that is dedicated to NDT.  ASNT organizes and distributes technical information that is specific to NDT.  
ASNT SNT-TC-1A - Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing:  Provides requirements for the qualification and certification of NDT personnel.

American Welding Society (AWS)

The AWS is an organization that provides standards for the welded fabrication of structures and bridges with structural steel and sheet metal.  
AWS   D1.1   -   Structural   Welding   Code: Provides   acceptance   standards   and   welding requirements   for   buildings,   bridges,   and   tubular   structures.  The   requirements   for   the qualification  of  weld  procedures  and  welders  also  are  included  in  this  Code.

American Petroleum Institute (API)
1.  API 510
2.  API 620
3.  API 650
4.  API RP-2A

API  510  -  Pressure  Vessel  Inspection  Code
Provides  requirements  for  the  maintenance inspection, repair, alteration, and relating procedures for pressure vessels that are used by the petroleum and chemical process industries.  
API 620 - Design and Construction of Large, Welded, Low-Pressure Storage Tanks
Pertains to  the  design  and  construction  of  large,  low  pressure,  above  ground  storage  tanks.   Typical applications include the storage of gases or vapors that results from refining operations. 
API  650  -  Welded  Steel  Tanks  for  Oil  Storage
Provides  material,  design,  fabrication,  and testing  requirements  for  above  ground  atmospheric  tanks.   Typical  applications  include  the storage of crude and other liquid petroleum products.  
API  RP-2A - Recommended Practice for Planning, Designing, and Constructing Fixed Off- Shore Platforms:Provides a guide for the design and construction of drilling platforms.  

Visit the following links to know more about international standards


All the above are registered trade/service marks of the respective institute/society. Consult the concerned Society/Institute stated above for buying the above codes, standards, specifications related to nondestructive testing-NDT