Letter symbols for physical quantities - Part 9: Symbols for equivalent circuits of piezoelectric crystals
Edition 2003-01

Quartz-clocks; requirements, testing, marking
Edition 1987-05

Quartz clocks; alarm clocks; requirements, testing
Edition 1989-12

Quartz wrist watches; requirements, testing, marking
Edition 1988-06

Laboratory ware made from fused quartz and fused silica; beakers made from fused quartz
Edition 1981-11

Laboratory ware made from fused quartz and fused silica; boiling flasks made from fused quartz; round bottom flasks, flat bottom flasks and conical flasks
Edition 1981-11

Laboratory ware made from fused quartz and fused silica; straight bore stopcocks made from fused quartz
Edition 1979-04

Laboratory ware made from fused quartz and fused silica; T-bore stopcocks made from fused quartz
Edition 1979-05

Measuring method for determination of solarisation effect of fused silica optical fibers; Text in German and English
Edition 2017-01

Products used for treatment of water intended for human consumption - Silica sand and silica gravel; German version EN 12904:2005
Edition 2005-06