Random Section of GOST 2.601-2006
For the products requiring special care before handling them there should be a warning notice “WARNING! SPECIAL CARE!” on the cover sheet of logbook (certificate) and required explanations should be provided in the text of logbook (certificate).
6.6 All inscriptions (designations) and legends provided on the product and product nameplates should be provided and described in the documents.
6.7 All examples of inscriptions on remote controls, control boards and nameplates, stenciled names of switches and positions thereof: commands, operation modes, signals etc should be written in capital letters in inverted commas.
6.8 If OD is issued in a foreign language then it should be printed considering requirements of the international standards for technical documentation.
For exported products OD is set up without approval sheets.
6.9 If products are exported directly from operating organizations OD shall be prepared according to the current standard and additional user instructions for these organizations.
6.10 For visualization, easy understanding of the text content and explanations various tabular forms and graphical illustrations shall be applied.
6.11 Illustrations should be prepared in vector (dashed) form. When approved by the Customer it is allowed to use toned illustrations (pictures) provided that they will meet requirements on clear component visualization.
6.12 For visualization it is required to use the following types of object-oriented images:
— axonometric projection. The most visual 3D presentation of the parts, devices and units (See Figure B.1, Exhibit B);
— perspective projection which is usually used only for very large devices. Perspective views are also allowed to be used for layouts;
— orthogonal projection which is used if this type of illustration provides visual insight. In cases when parts or disassembly procedure can be unambiguously identified by means of the top view such representation can be used as illustration. This form is recommended for installation and electrical diagrams and etc
— diagrams/schemes. These types of representation are used for description of the system operation (for example, hydraulic) or schemes (for example, electric and etc);
— graphs. These types of representation are used for showing relations between different parameters;
6.13 It is required to observe uniformity of graphics, layout and accepted legends. See general requirements for illustration elements in Exhibit А.
6.14 While executing illustrations the following general requirements should be observed:
— illustrations should be as near as possible to the corresponding parts of the texts and number of illustrations must be sufficient for correct understanding of the text;
— illustrations should be represented in the form and scale which are the most favorable for perception and if required for visualization layout and/or direction signs should be used;
— illustrations shall be visual and simple enough, have only required information, directly referring to the text. Illustrations repetitions should not be avoided;
— it is required to avoid including of insignificant parts into illustrations such as invisible cavities or parts, marked by dashed lines, extra elements which are not described in the text. Exact description of the details, type of threads on screws or bolt head may be omitted;
— distance between two lines should be not less than cumulative thickness of these lines;
— color illustrations should ensure possibility to display them on computer in acceptable quality in monochrome mode. It is allowed to use hatching or shadowing (grey shading) as an alternative to color. If use of color has semantic meaning illustrations in instructions and other guidelines for operators shall have appropriate color;
— to ease reading and possibility to use cross references it is required to use portrait orientation for illustration layout. If required it is allowed to use folded illustrations or illustrations in landscape orientation.
6.15 For better clarity and visualization all instruments, devices and mechanism in spatial diagrams of different systems and flat flowcharts should be illustrated full-sized if possible.
6.16 Graphs shall be illustrated by means of coordinate grid according to the dimension scale (uniform or logarithmic). Graphs showing principle picture of single value change upon change of the other shall be allowed to be illustrated without coordinate grid.
Coordinate axes shall be drawn by full line with arrows at the end. Arrows at the end of the coordinate lines shall be shown on graphs showing functional change of the value and which doesn’t usually have coordinate grid and scale graduation on the coordinate axes. Thickness of the coordinate grid lines shall be half as much and thickness of curve lines twice thicker than lines of coordinate axes.
6.17 As a rule, general requirements for all illustrations and symbols (arrows, directions of types, thickness of dimension and leader lines, illustration fonts and font size and ect) shall be set up by developer unless other is specified in technical assignment. See example of requirements for execution of illustrations in Exhibit B.*