Petroleum and natural gas industries - Drilling fluid materials - Specifications and tests (ISO 13500:2008); English version EN ISO 13500:2008— 97 стр.
Petroleum and natural gas industries - Drilling fluid materials - Specifications and tests (ISO 13500:2008 + AMD 1:2010); English version EN ISO 13500:2008 + A1:2010, only on CD-ROM— 115 стр.