Example: Definition of a Set of Rules with Records 

1. Start the rule editor and create a new rule (see Using the Rule Editor).
2. Under Description enter a description for the rule, for example, Derivation of two R phrases from several flash points .
3. In the Condition (IF) field, enter the first part of the condition: 21 < .
4. From the overview tree choose the Flash point node for the value assignment type Flash point and assign it to the Condition (IF) field using drag & drop.

The condition field now contains the following: 21 < FLASH_POINT.

5. From the overview tree choose the characteristic Value from the value assignment type Flash point and drag it directly to the existing FLASH_POINT. entry using drag & drop.
6. Add to the condition in the Condition field so that it reads 21 < FLASH_POINT.VAL, FLASH_POINT.VAL < 55 .
7. From the overview tree choose the characteristic R phrases from the value assignment type Labeling and assign it to the Left Expr. field using drag & drop.

The internal fact key LAB_R_PHRAS appears in the Left Expr. field and the system automatically adds the operator := to the ToDo field.



At this point it is not necessary to create a record in the same way as under 4. because only one data record is to be created for the value assignment type Labeling in which only the R phrases characteristic is to be assigned multiple values.

8. Change the operator to += because the R phrases characteristic is to be assigned multiple values.
9. From the overview tree choose the phrase Flammable under the characteristic R phrases from the value assignment type Labeling and assign it to the Right Expr. field using drag & drop.

The internal phrase key "[#R10#]" appears in the Right Expr. field.

10. Repeat steps 7 to 10 in the next line of the List of Todos (THEN) but in step 10, instead of assigning the phrase Flammable, assign the phrase In use, may form flammable/explosive vapor-air mixture to the Right Expr. field using drag & drop.
11. Save the set of rules.

See Using the Rule Editor.

When using this set of rules to determine secondary data, the EH&S Expert creates one data record for the value assignment type Labeling for substances whose flash point is between 21 and 55°C in at least one value assignment. In the value assignment, the characteristic R phrases is assigned the phrases Flammable and In use, may form flammable/explosive vapor-air mixture.

The rule file has the following structure: