Stere
- Cubic meters (fm)
- Harvest Festival meters ( m³ )
- Stock cubic meters ( Vfm )
- Cubic meter (rm), and Rochester
- Bulk meters ( lcm ) also cubic meters
The cubic meter (rm) or Rochester is a measure of space for wood and the most common unit of measurement in the trading of firewood. A cubic meter (1 rm and 1 Rochester ) corresponds to a cube of one meter (1 m) on a side, so a volume of one cubic meter ( 1 m ) of 1- metriger, stacked logs, including the gaps in the stratification.
The cubic meter ( srm ) corresponds to a loosely dumped timber volume of one cubic meter.
One cubic meter of wood without gaps is the cubic meter (fm).
Cubic meter
The wood in the content area of a meter depends on the piece size and shape, as well as the care taken when setting up and thus may vary. Usually equal to 1 cubic meter approx 0.7 cubic meters. This is a stack of split or unsplit wood pieces with a length of 1 m. If firewood worked directly in the forest (eg small self- advertising), the wood is cut to one meter and stacked ( stack height with oversize 1.10 m ) so that the forester or forest owner can then accurately measure the amount of wood. Cut to stove length, it is according to the dimensions. For firewood today a cutting length of 33 cm or 25 cm has become the norm.
Cubic meters
In trade and transport a proper layering is often uneconomical, eg for split firewood or wood chips. The corresponding material is then simply poured, significantly more air in a cubic meter of wood leaves than in ordinary stratification. One then speaks of the cubic meter or bulk meters.
The cubic meter is not an official measure, depending on the density of the pile is the amount different. This follows from the fact that pieces of wood of various thickness and length vary freely leave much space after the bed.
Comparison
When firewood yield from 1.4 to 1.65 cubic meters neatly placed one cubic meter. A cubic meter is therefore equivalent to about 0.6 to 0.7 cubic meters and about .43 to 0.5 cubic meters.
The Association for the timber industry are the following regarding the conversion:
When wood chips a cubic meter corresponds to about 0.6 rm, or about 0.4 fm.
Earlier also the fathoms was used as a measure of space for plywood. Depending on the region corresponding to 3 or 4 cubic meters a fathoms.
Germany
In Germany until 31 December 1977, after the Regulation Implementing the Law on units of measurement of 26 June 1970, the cubic meter (abbreviation: Rm) legally permitted as a special name for the cubic meter in " volume information for layered wood including air gaps ".
Since June 26, 1970 in Germany, only the cubic meter, the liter, and all decimal parts and multiples thereof legally permissible volume units. They are denoted by SI intentions. In the course of trade should therefore specify the stack volume ( WHT ) or the bulk volume ( V sch ) in cubic meters. This avoids the outdated term " cubic meter ".