DIN 52161-7:2014-01 Testing of wood preservatives - Detection of wood preservatives in wood - Part 7: Determination of the content of copper bearing wood preservatives
2014DIN 52161-7:2014 Testing of wood preservatives - Detection of wood preservatives in wood - Part 7: Determination of the content of copper bearing wood preservatives
1985DIN 52161-7:1985 Testing of wood preservatives; detection of wood preservatives in wood; determination of the content of copper and chrome bearing wood preservatives