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In addition to plotting the sieve analysis test results, specifications can also be shown on the chart. These specifications are typically provided by the department of transportation, design engineer, ASTM, etc. The program comes with several standard specifications. Additional specifications can be  specifying by selecting Tools > GDMS > Soil and Aggregates > Sieve Specifications. The Specifications form will be displayed.

 

 

The form will initially display the first specification in the database. Other specifications can be displayed using the navigation buttons at the top of the form. To add a specification click on the Add button to display a blank form.

 

The following information can be entered for the specification:

 

Spec. ID: A unique number or name to use for the specification.

 

Spec. Name: The name of the specification.

 

Agency: The agency that issued the specification (e.g. ASTM, APWA, FHWA).

 

Description: A description of the specification.

 

Sieve No.: The standard number of the sieve as specified in the Sieve Sizes form. Typically, these are the standard sieves in Inches and the standard sieve numbers. These numbers are automatically entered when a new specification is created.

 

Sieve Size: The size of the sieve in millimetres. These numbers are automatically entered, and are specified in the Sieve Sizes form.

 

Lower Limit: The minimum percentage passing required by the specification.

 

Upper Limit: The maximum percentage passing required by the specification.