Definition of diastereomer. : a stereoisomer of a compound having two or more chiral centers that is not a mirror image of another stereoisomer of the same compound â compare enantiomer.
Most perennial weeds such as Johnsongrass. are also suppressed although vigorous plants or heavy in-. festations may lift plastic. Perennial sedges, and to a lesser. extent, grasses can puncture sheet mulches as the weeds. emerge from the soil, resulting in inadequate control.
Particleboard is the standard or basic product, the practice has developed that the special products (MR and. Flooring) are the ones specifically identified by name printed on the sheet or by colour code. The binder system used for Standard Particleboard is urea formaldehyde. Paraffin wax is added to the surface.