CFR›Title 49›Subtitle B›Chapter II›Part 230›Subpart B›Subject Group Water Glasses and Gauge Cocks ContainsSections 230.51–230.56CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 230.51 § 230.51 Number and location. 230.52 § 230.52 Water glass valves. 230.53 § 230.53 Time of cleaning. 230.54 § 230.54 Testing and maintenance. 230.55 § 230.55 Tubular type water and lubricator glasses and shields. 230.56 § 230.56 Water glass lamps. Previous Washing Boilers Washing Boilers