Wagner, Gail E.
Reports. Testing flotation recovery rates. Gail E. Wagner - Estados Unidos-US : Society for American Archaeology, 1982. - páginas 127-132: ilustraciones en blanco y negro. - Trimestral - vol.47; n.1 (Jan.1982) - American Antiquity. Journal of the Society for American Archaeology ; no.1 . - Soociety for American Archaeology. .
The poppy seed recovery test is a simple and inexpensive means of determining the effectiveness and consistency of any particular botanical flotation system. By adding a know number of charred poppy seeds to a sample before it is processed, archaeologists can check for loss, damage, and inter sample contamination. Different systems, equipment, methods, and personnel tested since 1976 yield recovery rate percentages ranging from 6% to 98%. Such percentages provide a basis of comparison among widely differing flotation systems and enable the archaeologist to decide which flotation system to use under particular logistical constraints.
BOTANICA ARQUEOLOGIA
Reports. Testing flotation recovery rates. Gail E. Wagner - Estados Unidos-US : Society for American Archaeology, 1982. - páginas 127-132: ilustraciones en blanco y negro. - Trimestral - vol.47; n.1 (Jan.1982) - American Antiquity. Journal of the Society for American Archaeology ; no.1 . - Soociety for American Archaeology. .
The poppy seed recovery test is a simple and inexpensive means of determining the effectiveness and consistency of any particular botanical flotation system. By adding a know number of charred poppy seeds to a sample before it is processed, archaeologists can check for loss, damage, and inter sample contamination. Different systems, equipment, methods, and personnel tested since 1976 yield recovery rate percentages ranging from 6% to 98%. Such percentages provide a basis of comparison among widely differing flotation systems and enable the archaeologist to decide which flotation system to use under particular logistical constraints.
BOTANICA ARQUEOLOGIA
