ISO 13567

ISO 13567 is an international Computer-aided design (CAD) layer standard.

The standard is divided in three parts:

Standard has been developed by Technical Committee TC 10 (Technical product documentation) Subcommittee SC 8 (Construction documentation); Refer. ICS: 01.110; 35.240.10.

CAD layer names are structured as a series of mandatory and optional fixed length fields, composed as a continuous alpha-numerical text string.

(2 characters, indicating the person or organisation responsible for the layer information

(6 characters, indicating the functional parts of construction works or structure): follows a classification system like SfB building codes or Uniclass codes;

(2 characters, related to the information graphical presentation)

(1 character, status of the physical part, ISO code)

(4 characters, physical subdivision of construction work, recommended to use ISO 4157-2/3 codes)

(1 character, time or logical subdivision of work)

(1 character, work multiple views differentiation, ISO code)

(1 character, classification of layer information by the scale of final drawing, ISO code)

(2 characters, materials and/or work sections)

(unlimited, additional subdivision or help plain description): description or subdivision.

In practice, application of ISO 13567 fields can lead to short names (only mandatory fields), or much longer names (use of some or all optional fields in complex projects).

Agent is Architect, using ISO 13567 and UniClass or CI/SfB Classification System.

Using UniClass Table G and Table H (exceptionally F and J tables).

Note: Elements cut by section has been provisionally indicated as A-****--E5 (reflecting the use of a wider line). An alternative -but longest- notation could be A-****--E-------2 (defining the view as section) or A-****--ES.

...
Wikipedia