DIN 18302:2019-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations
2023DIN 18302:2023-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Special civil engineering works for the development of boreholes
2019DIN 18302:2019-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations
2016DIN 18302:2016 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations
2015DIN 18302:2015 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations
2012DIN 18302:2012 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Borehole sinking operations
0000 DIN 18302:2010
2006DIN 18302:2006 German construction contract procedures - Part C: General technical specifications for building works - Borehole extension works