1. Applying Metrics for Welding
Correct and Incorrect Metric Expressions

3. When a Millimeter is Less than One, a “0” is Shown Preceding the Decimal Point.
Correct 0.08 mm
Incorrect .08 mm

4. A Decimal Point and a Zero are not Shown When the Millimeter Dimension is a Whole Number.
Correct 8 mm
Incorrect 8.0 mm

5. A Millimeter Dimension with a Whole Number and a Decimal is not Shown with a Zero Following the Decimal Fraction.
Correct 2.2 mm
Incorrect mm

6. A Metric Dimension is Given as a Decimal Fraction Rather than a Common Fraction.
Correct .25 mm
Incorrect ¼ mm

7. Symbols for Metric Units are Shown in Lower-Case Letters in Most Cases.
Correct 6 mm
Incorrect 6 MM
Incorrect 6 Mm
Incorrect 6 mM

8. Drawings using Millimeters will not Show the Digits Separated into Groups by Commas or Spaces.
Correct 1547
Incorrect
Correct
Incorrect 10,289

9. When Listing Multiple Measurements, a Semicolon is Used to Separate Dimensions in a List.
Correct 28 mm; 16 mm; 5.2 mm
Incorrect mm, 16 mm, 5.2 mm