The ISO 15156 Maintenance Agency has published the following new “Technical Circular” for the ISO 15156:2015 series “Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production” on 2018-06-01:

• Technical Circular 2, ISO 15156-2:2015/Cir.2:2018(E)(2018-06-01)
   
• Technical Circular 2, ISO 15156-3:2015/Cir.2:2018(E)(2018-06-01) 

The Technical Circular and further information on the maintenance of the ISO 15156 series are available on www.iso.org/iso15156maintenance.

Following Technical Circulars for the parts of the ISO 15156:2015 series are available:

ISO 15156-1:2015, Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production - Part 1: General principles for selection of cracking-resistant materials

• Technical Circular 1, ISO 15156-1:2015/Cir.1:2017(E)(2017-12-22)

 ISO 15156-2:2015, Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production — Part 2: Cracking-resistant carbon and low-alloy steels, and the use of cast irons

• Technical Circular 1, ISO 15156-2:2015/Cir.1:2017(E)(2017-12-22)

• Technical Circular 2, ISO 15156-2:2015/Cir.1:2017(E)(2018-06-01)

ISO 15156-3:2015, Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production — Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

• Technical Circular 1, ISO 15156-3:2015/Cir.1:2016(E)(2016-04-06)

• Technical Circular 2, ISO 15156-3:2015/Cir.2:2018(E)(2018-06-01)