Summated Rating 

Use

You use this analysis method to assess agents that are compositions and agents that occur in combination with other agents.

The result contains the summated index (numeric value) and the additive rating (A, B, C, and so on). These then reflect the risk potential of the mixture.

Integration

The additive rating is taken into account when the main rating is calculated.

Prerequisites

The following prerequisites must be fulfilled for you to be able to use the function:

·        The individual agents must exist in the exposure profile of the work area you are assessing and risk assessment entries must exist.

·        For the system to be able to read reference values from the specification database, the required settings must have been made in Customizing for Industrial Hygiene and Safety under Specify Measurement Items.

Activities

To call the function, navigate from the respective risk assessment to the analysis using  with the quick info text Analyze and then choose the Summated Rating tab page. Here you specify which agents and measurements you want to analyze. You can use a search dialog box to help you do this.

Once you have made your selection, the system determines the corresponding reference values and calculates the individual ratings. It then determines the summated index and proposes an additive rating. You can change this value.

The activities are explained in detail below:

Specify Agents

To add an agent, proceed as follows:

...

       1.      Choose  with the quick info text Insert in the lower part of the Summated Rating tab page. This starts the user exit ANLS_MSFND with the function module CBIH_LB43_UE_MSMNT_FIND and the search dialog box for measurements appears.

       2.      In the search dialog box, you can use the Work area and Composition indicators to specify whether the search for measurements is to be run for all agents entered in the work area or whether only agents are to be searched for that are part of a composition.

When you search using the composition, the system evaluates the value assignment type Hazardous ingredients (SAP_EHS_1012_004) in the standard system. If you want to access another value assignment type, you must enter it in Customizing for Basic Data and Tools as the value for the environment parameter IHS_ERQT_ANLS_ESTCAT under Specify Environment Parameters.

The system displays only the constituents of the composition for which you have entered measurements in the amounts function.

By specifying other search criteria for the agent and the measurement, you can further restrict the search.

       3.      As the result of the search a hit list appears. Here you can select the required agents with the relevant measurements (amounts) and transfer them to the Summated Rating tab page. Before displaying the results, the system determines the following other data:

¡        Reference values: These are taken from the specification database and displayed using the user exit IHS_LIMGET with the function module CBIH_LB12_USEX_HAZ_GET_EPLIMIT.

¡        Indexes: These are each specified as a quotient of the measured value and reference value. You can change the values.

¡        Individual ratings: These are calculated using the user exit ANLS_SRTCP with the function module CBIH_LB31_COMPUTE_RATING.

       4.      You can assign a weighting factor to each index. The indexes are then multiplied by this value before the summated rating is calculated. The weighting is set to the value 1 as default.

Evaluate the Summated Values

In the Rating group box, the system displays the following summated values:

·        Summated index

This is the sum of the indexes.

·        Weighted summated index

This is the result of adding the products of the weighting and the index.

You can calculate the relevant additive rating and the weighted additive rating by using  Rating. The user exit ANLS_SCRAT with the function module CBIH_LB42_UE_SCRAT_COMP is started for the calculation. You can overwrite the additive ratings manually.