NEN NPR CEN/TS 14779 : 2005

Explains methods for preparing sampling plans and sampling certificates, and is applicable to solid biofuels that are either: - fine and regularly-shaped particulate materials, particle sizes up to about 10 mm that can be sampled using a scoop or pipe, for example: sawdust, olive stones and wood pellets; - coarse or irregularly-shaped particulate materials, particle sizes up to about 200 mm that can be sampled using a fork or shovel, for example: wood chips and nut shells, forest residue chips, and loose straw; - baled materials that require a special sampling tool to be used if the bales are not to be broken open for sampling, for example baled straw or grass; - large pieces (particles sizes above 200 mm) which are to be picked manually; - fibrous and vegetable waste dewatered in belt press.