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BS EN 13654-1
Soil improvers and growing media. Determination of nitrogen. Modified Kjeldahl method
Edition
2001-11-09
BS EN 13654-2
Soil improvers and growing media. Determination of nitrogen. Dumas method
Edition
2001-11-09
BS EN 13652
Soil improvers and growing media. Extraction of water soluble nutrients and elements
Edition
2001-11-09
ASTM D 8374
Standard Guide for Personal Cannabis/Hemp Plant Growing Appliances
Edition
2021
UNE-EN 13037
Soil improvers and growing media - Determination of pH
Edition
2012-04-04
NF U44-308 ; NF EN 13037:2012-02-01
Soil improvers and growing media - Determination of pH
Edition
2012-02-01
SN EN 13037
Soil improvers and growing media - Determination of pH
Edition
2012-01
21/30436585 DC
BS EN 15761. Pre-shaped growing media. Determination of the dimensions measured and bulk density
Edition
2021-12-16
BS EN 15238
Soil improvers and growing media. Determination of quantity for materials with particle size greater than 60 mm
Edition
2022-12-01
BS EN 16087-1
Soil improvers and growing media. Determination of the aerobic biological activity. Oxygen uptake rate (OUR)
Edition
2020-01-23
