# `density_test` [Back to L6](../index.md) | [Browse all axes](../../browse_by_axis.md) | [Browse all options](../../browse_by_option.md) > Axis ``density_test`` on sub-layer ``L6_E_density_interval`` (layer ``l6``). ## Sub-layer **L6_E_density_interval** ## Axis metadata - Default: `'pit_berkowitz'` - Sweepable: False - Status: operational ## Operational status summary - Operational: 0 option(s) - Future: 0 option(s) ## Options _This axis takes a free-form value (numeric, list, or other non-enumerated leaf-config datum); see the layer architecture page for the accepted shape._