1970API STD 602-2016 Steel Gate, Globe and Check Valves for Sizes DN 100 and Smaller for the Petroleum and Natural Gas Industries Eighth Edition
2015API STD 602-2015 Gate@ Globe@ and Check Valves for Sizes DN 100 (NPS 4) and Smaller for the Petroleum and Natural Gas Industries (TENTH EDITION; ERTA: September 2016)
2009API STD 602-2009 Steel Gate@ Globe@ and Check Valves for Sizes NPS 4 (DN 100) and Smaller for the Petroleum and Natural Gas Industries (Ninth Edition)
2005API STD 602-2005 Steel Gate@ Globe and Check Valves for Sizes DN 100 and Smaller for the Petroleum and Natural Gas Industries (Eighth Edition)