<p>ISO 14405-1:2016 establishes the default specification operator (see ISO 17450‑2) for linear size and defines a number of special specification operators for linear size for features of size, e.g. "cylinder", "sphere", "torus,"[1], "circle", "two parallel opposite planes", or "two parallel opposite straight lines".</p>
<p>It also defines the specification modifiers and the drawing indications for these linear sizes.</p>
<p>It covers the following linear sizes:</p>
<p>a) local size:</p>
<p>- two-point size;</p>
<p>- spherical size;</p>
<p>- section size;</p>
<p>- portion size;</p>
<p>b) global size:</p>
<p>- direct global linear size:</p>
<p>- least-squares size;</p>
<p>- maximum inscribed size;</p>
<p>- minimum circumscribed size;</p>
<p>- minimax size;</p>
<p>- indirect global linear size;</p>
<p>c) calculated size:</p>
<p>- circumference diameter;</p>
<p>- area diameter;</p>
<p>- volume diameter;</p>
<p>d) rank-order size:</p>
<p>- maximum size;</p>
<p>- minimum size;</p>
<p>- average size;</p>
<p>- median size;</p>
<p>- mid-range size;</p>
<p>- range of sizes;</p>
<p>- standard deviation of sizes.</p>
<p>ISO 14405-1:2016 defines tolerances of linear sizes for the following:</p>
<p>- a + and/or − limit deviation (e.g. 0/−0,019);</p>
<p>- an upper limit of size (ULS) and/or lower limit of size (LLS) (e.g. 15,2 max., 12 min., or 30,2/30,181);</p>
<p>- an ISO tolerance class code in accordance with ISO 286‑1 (e.g. 10 h6);</p>
<p>with or without modifiers.</p>
<p>ISO 14405-1:2016 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.</p>
<p>[1] A torus is a feature of size when its directrix diameter is fixed.</p>
Registration number (WIID)
65202
Scope
<p>ISO 14405-1:2016 establishes the default specification operator (see ISO 17450‑2) for linear size and defines a number of special specification operators for linear size for features of size, e.g. "cylinder", "sphere", "torus,"[1], "circle", "two parallel opposite planes", or "two parallel opposite straight lines".</p>
<p>It also defines the specification modifiers and the drawing indications for these linear sizes.</p>
<p>It covers the following linear sizes:</p>
<p>a) local size:</p>
<p>- two-point size;</p>
<p>- spherical size;</p>
<p>- section size;</p>
<p>- portion size;</p>
<p>b) global size:</p>
<p>- direct global linear size:</p>
<p>- least-squares size;</p>
<p>- maximum inscribed size;</p>
<p>- minimum circumscribed size;</p>
<p>- minimax size;</p>
<p>- indirect global linear size;</p>
<p>c) calculated size:</p>
<p>- circumference diameter;</p>
<p>- area diameter;</p>
<p>- volume diameter;</p>
<p>d) rank-order size:</p>
<p>- maximum size;</p>
<p>- minimum size;</p>
<p>- average size;</p>
<p>- median size;</p>
<p>- mid-range size;</p>
<p>- range of sizes;</p>
<p>- standard deviation of sizes.</p>
<p>ISO 14405-1:2016 defines tolerances of linear sizes for the following:</p>
<p>- a + and/or − limit deviation (e.g. 0/−0,019);</p>
<p>- an upper limit of size (ULS) and/or lower limit of size (LLS) (e.g. 15,2 max., 12 min., or 30,2/30,181);</p>
<p>- an ISO tolerance class code in accordance with ISO 286‑1 (e.g. 10 h6);</p>
<p>with or without modifiers.</p>
<p>ISO 14405-1:2016 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.</p>
<p>[1] A torus is a feature of size when its directrix diameter is fixed.</p>
