MEA Measurements

To specify physical measurements or counts, including dimensions, tolerances, variances, and weights (See Figures Appendix for example of use of C001)

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Position

Element

Name

Type

Requirement

Min

Max

Repeat

Measurement Reference ID Code

Identifier (ID)

Optional

2

2

1

Code identifying the broad category to which a measurement applies

Measurement Qualifier

Identifier (ID)

Optional

1

3

1

Code identifying a specific product or process characteristic to which a measurement applies

Measurement Value

Decimal number (R)

Conditional

1

20

1

The value of the measurement

R03050608: At least one of MEA-03, MEA-05, MEA-06 or MEA-08 is required

MEA-04

Composite Unit of Measure

Composite (composite)

Conditional

1

Unit or Basis for Measurement Code

Identifier (ID)

Mandatory

2

2

-

Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

Exponent

Decimal number (R)

Optional

1

15

-

Power to which a unit is raised

If C001-02 is not used, its value is to be interpreted as 1.

Multiplier

Decimal number (R)

Optional

1

10

-

Value to be used as a multiplier to obtain a new value

If C001-03 is not used, its value is to be interpreted as 1.

Unit or Basis for Measurement Code

Identifier (ID)

Optional

2

2

-

Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

Exponent

Decimal number (R)

Optional

1

15

-

Power to which a unit is raised

If C001-05 is not used, its value is to be interpreted as 1.

Multiplier

Decimal number (R)

Optional

1

10

-

Value to be used as a multiplier to obtain a new value

If C001-06 is not used, its value is to be interpreted as 1.

Unit or Basis for Measurement Code

Identifier (ID)

Optional

2

2

-

Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

Exponent

Decimal number (R)

Optional

1

15

-

Power to which a unit is raised

If C001-08 is not used, its value is to be interpreted as 1.

Multiplier

Decimal number (R)

Optional

1

10

-

Value to be used as a multiplier to obtain a new value

If C001-09 is not used, its value is to be interpreted as 1.

Unit or Basis for Measurement Code

Identifier (ID)

Optional

2

2

-

Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

Exponent

Decimal number (R)

Optional

1

15

-

Power to which a unit is raised

If C001-11 is not used, its value is to be interpreted as 1.

Multiplier

Decimal number (R)

Optional

1

10

-

Value to be used as a multiplier to obtain a new value

If C001-12 is not used, its value is to be interpreted as 1.

Unit or Basis for Measurement Code

Identifier (ID)

Optional

2

2

-

Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

Exponent

Decimal number (R)

Optional

1

15

-

Power to which a unit is raised

If C001-14 is not used, its value is to be interpreted as 1.

Multiplier

Decimal number (R)

Optional

1

10

-

Value to be used as a multiplier to obtain a new value

If C001-15 is not used, its value is to be interpreted as 1.

Range Minimum

Decimal number (R)

Conditional

1

20

1

The value specifying the minimum of the measurement range

L050412: If MEA-05 is present, then at least one of MEA-04 or MEA-12 is required

When citing dimensional tolerances, any measurement requiring a sign (+ or -), or any measurement where a positive (+) value cannot be assumed, use MEA05 as the negative (-) value and MEA06 as the positive (+) value.

Range Maximum

Decimal number (R)

Conditional

1

20

1

The value specifying the maximum of the measurement range

L060412: If MEA-06 is present, then at least one of MEA-04 or MEA-12 is required

Measurement Significance Code

Identifier (ID)

Optional

2

2

1

Code indicating the benchmark of, qualify or further define a measurement value

L07030506: If MEA-07 is present, then at least one of MEA-03, MEA-05 or MEA-06 is required

Measurement Attribute Code

Identifier (ID)

Conditional

2

2

1

Code indicating an attribute response when a numeric measurement value cannot be determined

E0803: Only one of MEA-08 or MEA-03 may be present

Surface/Layer/Position Code

Identifier (ID)

Optional

2

2

1

Code indicating the product surface, layer or position that is being described

Measurement Method or Device Code

Identifier (ID)

Optional

2

4

1

Code indicating the method or device used to record the measurement

Code List Qualifier Code

Identifier (ID)

Conditional

1

3

1

Code identifying a specific industry code list

P1112: If either MEA-11 or MEA-12 is present, then the other is required

MEA11 is the external code list for the unit of measure.

Industry Code

String (AN)

Conditional

1

30

1

Code indicating a code from a specific industry code list

MEA12 defines the unit of measure for MEA03, MEA05, and MEA06 from an external code list.