In the Material Composition and Properties section on the Material form, view, edit, or establish composition and property information for materials that already exist in the database. Each material has an effective date, which is used to track and maintain changes to the information about a material. (Chemicals, mixtures, and process streams are generically labeled as materials in Essential.)
If you have established new pure materials and mixtures on the Material form, assign each one an effective date in this section. (You must assign effective dates to pure materials first in order to establish mixtures and their composition.) Then, document compositions, physical property data, vapor pressure methods and/or data, physical states, and minor component information.
The same effective date entered on the Material form is used when entering material information, such as exposure limits, on other forms. Therefore, even if you are not entering composition and property information for the material, you must at a minimum assign it an effective date before you can enter other types of material information.
Note:
The Material Composition and Properties
section is also available on the Waste
Profile form, so you can view, edit, or establish composition and
property information for a waste stream profile.
For additional instruction on how to establish composition and property information for materials, click the following links or use the scroll bar to scan the page.
Establishing Composition and Property Information for a Material |
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Element-level security applies to the subsections in the Material Composition and Properties section on the Material form:
Composition
Physical Properties
Vapor Pressure Methods
Vapor Pressure
Physical States
Minor Components
Assigning element user privileges can further limit user access to proprietary, important or sensitive information. For example, you may want to prohibit edits to the vapor pressure-related information while allowing updates to the physical states/properties and components information. When the privileges assigned to the Material Comp and Prop security object are more restrictive than those assigned to the subsection elements, the object's security settings override the elements'. For example, if Read permissions are assigned for the Material Composition and Properties section and Read and Update permissions for the Physical States subsection, the entire section will be Read only because the Material Composition and Properties section's (object) security is more restrictive and, thereby, overrides the Physical States subsection's (element) security.
If no permissions are granted for any subsection, no subsection will be displayed in the Material Composition and Properties section. The security assigned for the Material Comp and Properties security object only applies to the section, i.e., just the date-related and composition-related fields are displayed for users with at least Read permissions to the object but no element permissions.
Tip:
When limiting privileges for a material composition and properties,
keep in mind that a separate Material Comp and Prop security object exists
for every module where the Material
form is available, except the Process Data Manager module. The privileges
assigned in the Air module for material composition and properties also
apply to the Process Data Manager module.
Refer to Setting Field-Level (Element) Security for additional information.
To establish composition
and property information for a material
Locate the material on the Materials list, click the material link to open the Material form, and expand the Material Composition and Properties section if necessary.
Review the Effective
Date for accuracy. Click the Calendar
button to change it when necessary.
To add a new effective date, click the New
Effective Date link. The new date defaults to the current date;
use the calendar button to change it when applicable.
Click the Do
not calculate vapor Composition for emission models, use defined composition
check box if you do not want the system to derive the vapor composition
of the components through vapor-liquid equilibrium (VLE) calculations
for air emission speciation. The system will use the vapor composition
you define instead of the standard VLE calculations.
For additional information about air emission speciation, refer to
Speciating
Material Releases and Speciation
Method Emission Rate Determination.
Add information in the Composition, Physical Properties, Vapor Pressure Methods, Vapor Pressures, Physical States, and Minor Components subsections.
Click the Save button on the form.
Repeat steps 2 through 5 to add material composition and properties information for a different effective date.
Note:
If you marked a material as a pure type of material, the Composition
subsection will not be displayed.
For materials that are mixtures, you should specify their component materials and concentration percentages in the Composition subsection of the Material Composition and Properties section on the Material form. A process stream or mixture can be composed of one or more pure materials and mixtures. For reporting, you can mark a component material as a Trade Secret and specify a SARA material use activity. The weight percentage of a process stream must be defined for response factor calculations.
To enter the composition
of a material
Locate the material on the Materials list, click the material link to open the Material form, and expand the Material Composition and Properties section if necessary.
Review the Effective
Date for composition and properties information and select
another one from the list when the default value does not apply.
If the effective date is not listed, click New
Effective Date to add it on the Material
form.
Expand the Composition subsection when necessary and click Add Component.
Select a material Component from the list. Search by material name or CAS number.
Select a SARA Activity
from the list that represents the way the material is used at your
facility.
SARA activities are used to determine threshold exceedances for electronic
TRI reporting and the form R. Refer to Determining
Threshold Exceedances for additional information.
Click the Requires
two MW values check box when applicable.
Molecular weight values are used in speciated VLE emission calculations.
Refer to Speciation
Method Emission Rate Determination and VLE
Molecular Weight Speciation Configuration for additional information.
Click the Trade Secret check box when applicable.
Enter the concentration percentage in the Typical, Upper, and Minimum Concentration fields.
Enter a percentage in the Vapor, Liquid,
or Solid Concentration
fields.
If you entered a typical concentration, the same amount is automatically
entered in the Sum Vapor,
Liquid, or Solid
field of the Composition subsection
according to the Component Basis selected for the material. Enter
values for the other two fields on the Material
Component form and the entries will be applied to the appropriate
Sum field(s).
Click OK.
The material component is displayed as a line item. Edit or delete
existing material components using the buttons adjacent to the line
item.
Repeat steps 3 through 10 to add other material components.
Click the Save button on the form.
In the Physical Properties subsection of the Material Composition and Properties section on the Material form, enter results for physical properties of a material. Physical properties are characteristics of the material that are fixed, such as its boiling point, molecular weight, and liquid density.
Note:
A list of physical properties with base units of measure should
already be displayed. If the material physical property you want is not
listed, enter it on the Physical Properties
form. Regardless of your selections on the Physical
Properties form, physical properties are available for all Essential
modules and materials.
For each physical property that applies to the material, enter the material's specific value. If the result is a number, enter a typical, maximum, and minimum value. To enter results in a unit of measure other than the physical property's base unit, select a new unit of measure from the list. The list will only contain units of the same unit type as the physical property's base unit (e.g., Temperature, Density, or Length) and for which there is conversion information to the base unit (on the Units of Measure form). For example, if the physical property is "Autoignition Temperature", the unit type is "Temperature", and the base unit of measure is "F", the unit could only be changed to C, K, R, or another unit that has conversion information to degrees F.
If the result for a physical property is not a number, enter a text-based value for it. For example, for the physical property "Appearance", the result might be the material's color. You should also document the analytical technique used to determine the result. If applicable, you can enter reference information for a physical property result. An example is the reference temperature for a specific gravity value.
You may find that some physical properties are not applicable to the material. If you are not entering test results for a particular physical property, you can optionally document why the physical property was not tested by selecting a non-applicable reason.
You can also assign a code that represents a text description for the physical property data in the Description field. An example of a physical property text description is "The specific gravity for the material was not determined, but it was assumed to be slightly less than water". Physical property descriptions are used for authored MSDSs and are validated on the Physical Property Descriptions form.
Most physical property data is used for documentation and reporting. However, to calculate the response factor of any process streams, you must enter the molecular weight of each of its component materials. A user-defined Molecular Weight physical property can be specified for "Standard" and "Selective" speciation types when establishing material and material group emission calculations for your process unit emission models/scenarios. In the Waste module, default result values must be defined for the physical property Bulk Density when a volume unit of measure (e.g., gallons) is used to add waste to a container or to a shipment line. In the Industrial Hygiene module, the typical value defined for the physical property Health Hazard Rating is used for exposure assessment.
To add physical property
data for a materialLocate the material on the Materials list, click the material link to open the Material form, and expand the Material Composition and Properties section if necessary.
Expand the Physical Properties subsection when necessary to view the list of physical properties and the corresponding base units of measure.
Click the Edit button adjacent to a physical property line item and use the guidelines below to enter the Result value.
If the result is a number, type the appropriate values in the Typical, Maximum, and Minimum Result fields.
If the result is not a number, type the text result in the Text Result field.
If the result has reference information associated with it, type the information in the Result Reference field.
Select the Analytical
Technique that was used to test the physical property from
the list.
If the analytical technique is not listed, click the Ellipsis
button to add it on the Material
form.
Click the N/A check box if the physical property was not tested. Select an associated non-applicable Reason from the list.
Select a physical property Description code from the list.
If the physical property is not listed, click the Ellipsis
button to add it on the Material
form.
Click OK.
Repeat steps 3 through 7 to edit other physical properties.
Click the Save button on the form.
In the Vapor Pressure Methods subsection of the Material Composition and Properties section on the Material form, you can select an estimation technique that should be used to determine the vapor pressure of a liquid or solid. For mixtures, an entry is not required. A mixture's vapor pressure can be calculated based on the data for its components using Raoult's Law.
Depending on which method you select, you may also be required to provide additional information for the calculation:
Riedel Equation. Enter the values for the A, B, C, and D constants.
Antoine's Equation. Enter the values for the A, B, and C constants.
Reid Vapor Pressure (Crude Oil or Refined Petroleum). Enter the vapor pressure in psia and the ASTM Slope.
Vapor Pressure Data. Enter vapor pressure data and reference temperatures for the material in the Vapor Pressure subsection.
Nonvolatile. Select this option if the material does not exert a vapor pressure at all reasonable temperatures, but you still want to have it included in VLE calculations.
Nonvolatile (Do not include in VLE). Select this option if the material does not exert a vapor pressure at all reasonable temperatures, and you do not want to include it in VLE calculations. (Materials using this vapor pressure method are excluded from the liquid composition, which is normalized to 100% for the VLE calculations.)
Non-condensable. Select this option if the material is a vapor at all reasonable temperatures.
For the Air module, enter the emission stream temperature input for the various vapor pressure calculations on the Process Unit Emission Model form.
To add material vapor pressure
methodsLocate the material on the Materials list, click the material link to open the Material form, and expand the Material Composition and Properties section if necessary.
Expand the Vapor Pressure Methods subsection and select an option for vapor pressure method:
To use the Riedel Equation, click the Riedel Equation option and enter the A, B, C, and D constants.
To use Antoine's Equation, click the Antoine's Equation option and enter the A, B, and C constants.
To use Reid Vapor Pressure, click either the Crude Oil or Refined Petroleum option and enter the Vapor pressure (psia) and the ASTM Slope.
To use a series of vapor pressures and reference temperatures, click the Vapor Pressure Data option. You must enter the data in the Vapor Pressure subsection on this form.
To indicate that the material does not exert a vapor pressure, click either the Nonvolatile or Nonvolatile – Do Not Include in VLE option.
To indicate that the material is a vapor at all reasonable temperatures, click the Non-condensable option.
Click the Save button on the form.
In the Vapor Pressure subsection of the Material Composition and Properties section on the Material form, enter material vapor pressures and corresponding reference temperatures. To use this method, the Vapor Pressure Data option must be selected in the Vapor Pressure Methods subsection. For both the vapor pressure and the reference temperature, the corresponding unit of measure must be specified.
To enter vapor pressure
data
Locate the material on the Materials list, click the material link to open the Material form, and expand the Material Composition and Properties section if necessary.
Expand the Vapor Pressure Methods and Vapor Pressure subsections when necessary and verify the Vapor Pressure Data option has been selected in the Vapor Pressure Methods subsection.
Click Add Vapor Pressure and enter a numeric value for the Vapor Pressure. This number must be greater than zero.
Select a Unit
of measure for the vapor pressure from the list. This list contains
the units that are associated with the unit type Pressure.
If the applicable unit is not listed, click the Ellipsis
button and add it.
Enter a numeric value in the Reference Temperature field.
Select a Unit
of measure for the reference temperature from the list. This list
contains the units that are associated with unit type Temperature.
If the unit is not listed, click the Ellipsis
button and add it.
Click OK.
The information is displayed as a line item in the Vapor
Pressure subsection. Edit existing vapor pressure information
using the buttons adjacent to the line item.
Repeat steps 3 through 7 to add other vapor pressures.
Click the Save button on the form.
Assign one or more physical state, such as vapor, to a material in the Physical States subsection of the Material Composition and Properties section on the Material form or the Waste Profile form. Before you begin, make sure you have validated a list of physical states on the Physical States form.
Material form
Expand the Physical States subsection in the Material Composition and Properties section when necessary and click Add Physical States.
Select the Available
Physical States and click the right arrow button.
If the physical state is not listed, click the Modify
Physical States List button to add it to the Material
form. To remove a physical state from the Assigned
Physical States field, select it and click the left arrow button.
Click the Save button on the form.
Waste Profile form
Expand the Physical States subsection in the Material Composition and Properties section when necessary and click Add Physical States.
Click the check box for each applicable
state and click Add Physical States.
Each physical state is displayed as a line item. Click the Delete
button adjacent to the line item to remove the physical state.
Click the Save button on the form.
Specify a mixture material's trace components in the Minor Components subsection of the Material Composition and Properties section on the Material form. (Pure materials do not include minor components.) For example, a material might contain mercury in small amounts. Using the Minor Components subsection, you can specify the parts per million amount of mercury found in the material.
All minor components of a mixture must be pure. For each minor component, you can include three concentration values, typical, upper, and lower, along with the unit of measure. To document how the minor components were detected in a material, select a determination method and analytical technique.
By default, all minor components of a material will be reported when you generate a report. Designate a minor component as not applicable and it will not be included on reports.
Use the Comment field to add a description of the minor components. Remarks added here are often useful for future reference or to qualify a concentration value specified.
To enter minor components
for a materialLocate the material on the Materials list, click the material link to open the Material form, and expand the Material Composition and Properties section if necessary.
Expand the Minor Component subsection when necessary and click Add Minor Component.
Select a material from the Component field's list.
Enter the concentration percentage in the Typical, Upper, and Minimum Concentration fields.
Select a Unit
of measure for the concentration values entered.
If the unit is not listed, click the Ellipsis
button to add it.
Click the Not Applicable check box when the minor component should not be included on reports.
Select a Determination Method from the list.
Select an Analytical
Technique from the list.
If the analytical technique is not listed, click the Ellipsis
button to add it on the Material
form.
Add any notes in the Comment field.
Click OK.
The minor component is displayed in a line item. Edit or delete existing
minor components using the buttons adjacent to the line item.
Repeat steps 2 through 10 to add other minor components of the same material.
Click the Save button on the form.
