How to use Phyllis

Getting Started

Search the database

Average composition of a group of materials

Composition of material(s) selected via NTA 8003 classification (in Dutch)

How to use Phyllis (NTA 8003 classification)

Selection

The selection screen shows the structure of a main group. Change to another main group by clicking the appropriate tab. Click one or more of the open squares to select a group or subgroup. Click a selected square again to deselect it. Main groups (levels x00) and groups (levels xy0) offer two choices: clicking the left square (de)selects all levels within the group, clicking the right square (de)selects only materials classified at the (main) group level for lack of more precise information. You may select any combination of materials from different main groups, but the screen shows only the last main group chosen. In order to prevent inadvertent selection of materials from different main groups, click the clear (wis) button before you start a new selection

Individual data records:

When you have made your selection, click the button single (enkel) to view information for a data record answering your selection. Usually, a selection contains more than one data record. A pop-up menu under ID-number enables you to browse through the various datarecords. For each individual datarecord the source (reference) is indicated.

Average values of a number of data records:

When you have made your selection, click the button average (gemiddelde). Results are presented for moisture, volatiles and ash content, heating value and elemental composition. If you click the appropriate "bar diagram" icon, the distribution of values for that parameter becomes visible (see "Removing extremes" below if you wish to remove extremes)

Removing extremes

You may remove records containing extreme values by ticking the appropriate minimum and/or maximum boxes and clicking the "spread sheet" icon to repeat the calculation of average values. (Changes are not limited to a single parameter as a complete record is removed). The gray background shows which record has been removed and where the extreme value occurred.
You may remove records with extremes for different parameters simultaneously. If you wish to remove more than one record containing extreme values for a single parameter, you have to repeat the procedure.

Note: The NTA 8003 selection screens require JavaScript to be enabled.