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NA 080-00-03-04 AK -dormant
6855-11 Well-type ionization chambers
ATV DIN 18327 AA
Well construction and geothermal works
ISO/TC 67/SC 4/WG 2
Drilling well control equipment
ISO/TC 67/SC 3/WG 3
Well and formation treatment fluids
DIN EN ISO 9308-2 rev
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method
prEN ISO 9308-2 rev
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method
ISO/TC 67/SC 3
Drilling and completion fluids, well cements and treatment fluids
ISO/TC 113/SC 8/WG 3
Manual methods for the measurement of a ground water level in a well
NA 119-07-03-01 UA
Components and products for drilling technology and well construction
STLB-Bau LB 005u008
Well construction works and exploratory drilling; Groundwater lowering
