This Standard covers the following linear sizes:

— local size

— two-point size

— spherical size

— section size

— portion size

— global size

— direct global linear size

— least-squares size

— maximum inscribed size

— minimum circumscribed size

— indirect global linear size

— calculated global size (calculated size with volume diameter)

— calculated size

— circumference diameter

— area diameter

— volume diameter

— rank-order size

— maximum size

— minimum size

— average size

— median size

— mid-range size

— range size.

This Standard defines tolerances of linear sizes when there is :

— a + and/or — limit deviation (e.g. 01-0.019) (see Figure 9);

— an upper limit of size (ULS) and/or lower limit of size (LLS) (e.g. 11.a.max..12.min) (see Figure II);

— an ISO tolerance class code in accordance with JIS B 0401-1 (see Figure 10).

with or without modifier (see Tables 1 and 2).

This Standard provides a set of tools to express several types of size characteristic.

It does not present any information on the relationship between a function or a use and a size characteristic.

NOTE : The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 14405-1 : 2010 Geometrical product specifications (GPS) — Dimensional tolerancing — Part 1 Linear sizes (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and .

JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/1EC Guide 21-1.