Source: 23-0553 App A Rev 6 | Filtered: ID1 Scope and Both only, Line Label not n/a | Directional arrows black on white per spec | All label text UPPERCASE per Section 2.03.D | Color legend per page 14
LABEL SIZE REQUIREMENTS (TABLE 1)
Pipe / Tube Size (OD)
Text Height
Label Height
1/4"
1/4"
1/2"
1/2" to 3/4"
3/8"
1/2"
1" to 2-1/2"
7/8"
1"
3" to 5-1/2"
1-7/8"
2"
6" and larger
3-1/2"
4"
Pipe size includes insulation O.D. for correct label size | Direction arrow sizing to match text letter height