from 01.01.71
1. This standard establishes the styles and main purposes of lines in the drawings of all industries and construction, performed in paper and (or) electronic form. Special purpose of lines (image of threads, slots, boundaries of zones with different roughness, etc.) are defined in the relevant standards of the Unified Design Documentation System. (Changed edition, Rev. No. 1, 2, 3). 2. The name, style, thickness of the lines in relation to the thickness of the main line and the main purpose of the lines must correspond to those indicated in Table. 1. Examples of the use of lines are shown in Fig. 1-9. (Revised edition, Rev. No. 1). 3. For cuts and sections, it is allowed to connect the ends of an open line with a dash-dotted thin line.
Revised edition, Rev. Number 3). 4. In construction drawings in sections, visible contour lines that do not fall into the sectional plane are allowed to be made with a solid thin line (Fig. 9). 5. The thickness of the solid main line s should be in the range from 0.5 to 1.4 mm, depending on the size and complexity of the image, as well as on the format of the drawing. The thickness of lines of the same type must be the same for all images in this drawing, drawn at the same scale.
Table 1
|
Name |
inscription |
Line thickness in relation to the main line thickness |
Main purpose |
| 1. Solid thick main | Visible Contour Lines Visible Transition Lines Section Contour Lines | ||
| 2. Solid thin |
|
Contour lines of the superimposed section Dimension and extension lines Hatch lines Leader lines Shelves of leader lines and underlining of inscriptions Lines for depicting boundary details (“environment”) Limitation lines of detail elements in views, sections and sections Imaginary transition lines Traces of planes, lines for constructing characteristic points with special constructions | |
| 3. Solid wavy |
|
Break lines View and section separation lines | |
| 4. Dashed |
|
Invisible contour lines Transition lines invisible | |
| 5. Dash-dot thin |
|
Axial and center lines Section lines that are axes of symmetry for superimposed or extended sections | |
| 6. Dash-dot thickened |
|
Lines indicating surfaces to be heat treated or coated | |
| 7. Open | Section lines | ||
| 8. Solid thin with kinks |
|
Long break lines | |
| 9. Dash-dotted with two dots thin |
|
Fold lines on reamers. Lines for depicting parts of products in extreme or intermediate positions Lines for depicting a sweep combined with a view |
Heck. one
Heck. 2
Heck. 3
Heck. 4
Heck. five
Heck. 9 Notes. Position numbers in Fig. 1-9 correspond to the numbers of items in Table. 1. (Changed edition, Rev. No. 1). 6. The smallest thickness of the lines and the smallest distance between the lines, depending on the format of the drawing, must correspond to those indicated in Table. 2.
table 2
|
Drawing Format |
The smallest thickness of lines in mm, made |
The smallest distance between lines in mm, made |
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in pencil |
Subjects, depending on the size, complexity and purpose of the drawing, can be drawn in full size or on a certain scale. The scale is the ratio of the linear dimensions of the object depicted in the drawing to the linear dimensions of the object itself in kind. The image scales used for all industries and construction are divided into three groups: natural size, reduction scales and enlargement scales. The scales of images in the drawings should be selected from the following range: – life size – 1:1; – reduction scales – 1:2; 1:2.5; 1:4; 1:5; 1:10; 1:15; 1:20; 1:25; 1:40; 1:50; 1:75; 1:100; 1:200; 1:400; 1:500; 1:800; 1:1000; – magnification scales – 2:1; 2.5:1; 4:1; 5:1; 10:1; 20:1; 50:1; 100:1. It is preferable to carry out the image of the object in full size, since the drawing is completely similar to the depicted object in shape and size. Regardless of the scale of the image, only the actual dimensions of the object are always put on the drawing. The scale designation is entered in column 6 of the main inscription by type: 1:1; 2:1; 1:2 etc. If any image in the drawing is made on a scale that differs from that indicated in the main inscription, then the value of the scale is put in brackets near this image. For example, an additional view along the arrow AND made in 5:1 scale. Above this image is the following entry: A(5:1). Scales are not used when making clichés, photocopies, photographs, diagrams, etc. 7. Lines (gost 2.303-68)The standard establishes the name, drawing rules and main purposes of lines in the drawings of all industries and construction (see Table 2). table 2 Drawing lines
Thickness S a solid main line is taken in the range from 0.5 to 1.4 mm, depending on the size and complexity of the image, as well as on the format of the drawing. An example of the application of some lines is shown in fig. 7.1.
Rice. 7.1. An example of the use of lines: 1 - solid basic thick (lines of a visible contour); 2 - solid thin (hatching lines, remote, dimensional); 3 - solid wavy (cliff line); 4 - dashed (lines of an invisible contour); 5 – dash-dotted thin line (axial and center lines); 6 - open (section line) The thickness of the lines of the same purpose should be the same on the same drawing (sheet) for all images drawn at the same scale. Some guidelines for tracing drawings: 1. The length of strokes in dashed and dash-dotted lines should be chosen depending on the size of the image. Recommended dimensions for dashed lines: stroke length 4–6 mm, distance between strokes 1–2 mm; for dash-dotted lines: stroke length 15–20 mm, distance between strokes 3–4 mm. 2. The strokes in the line must be the same length. 3. The spaces between the strokes in each line must be the same. 4 Dash-dot lines must intersect and end with dashes. 5. If the size of the circle or other geometric shapes less than 12 mm, then the dash-dotted lines used as axial and center lines are replaced by solid thin lines. 6. Axial and center lines should be removed from the contour of the image of the object by 3–5 mm. 7. The contours of the parts at the points of contact of the lines should be depicted as a solid main line, without thickening. Thin lines are outlined first, then thick ones. ESKD GOST 2.303-68 Lines 1. This standard establishes the styles and main purposes of lines in the drawings of all industries and construction, performed in paper and (or) electronic form. Special purpose of lines (image of threads, slots, boundaries of zones with different roughness, etc.) are defined in the relevant standards of the Unified System design documentation. (Changed edition, Rev. No. 1, 2, 3). 2. The name, style, thickness of the lines in relation to the thickness of the main line and the main purpose of the lines must correspond to those indicated in Table. 1. Examples of the use of lines are shown in Fig. 1-9. (Revised edition, Rev. No. 1). 3. For cuts and sections, it is allowed to connect the ends of an open line with a dash-dotted thin line. (Revised edition, Rev. No. 3). 4. In construction drawings in sections, visible contour lines that do not fall into the sectional plane are allowed to be made with a solid thin line (Fig. 9). 5. The thickness of the solid main line s should be in the range from 0.5 to 1.4 mm, depending on the size and complexity of the image, as well as on the format of the drawing. The thickness of lines of the same type must be the same for all images in this drawing, drawn at the same scale. Table 1. Name, style, thickness of lines in relation to the thickness of the main line and the main purpose of the lines
GOST 2.303-68 Group T52 INTERSTATE STANDARD one system design documentation Unified system for design documentation. lines ISS 01.100.01 Introduction date 1971-01-01
1. This standard establishes the styles and main purposes of lines in the drawings of all industries and construction, performed in paper and (or) electronic form. 2. The name, style, thickness of the lines in relation to the thickness of the main line and the main purpose of the lines must correspond to those indicated in Table 1. Examples of the use of lines are shown in Figures 1-9. Table 1
Damn.2 Damn.3 Damn.4 Damn.5 Damn.6 Damn.7 Damn.8
3. For cuts and sections, it is allowed to connect the ends of an open line with a dash-dotted thin line.
4. In construction drawings in sections, visible contour lines that do not fall into the sectional plane are allowed to be made with a solid thin line (Fig. 9). 5. The thickness of the solid main line should be in the range of 0.5 to 1.4 mm, depending on the size and complexity of the image, as well as on the format of the drawing. 6. The smallest thickness of lines and the smallest distance between lines, depending on the format of the drawing, must correspond to those indicated in Table 2. table 2
7. The length of strokes in dashed and dash-dotted lines should be chosen depending on the size of the image. 8. The strokes in the line should be approximately the same length. 9. The spaces between the strokes in the line should be approximately the same length. 10. Dash-dotted lines must intersect and end with dashes. 11. Dash-dotted lines used as center lines should be replaced by solid thin lines if the diameter of the circle or the dimensions of other geometric shapes in the image is less than 12 mm (Fig. 10). Damn.10
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All documents presented in the catalog are not their official publication and are intended for informational purposes only. Electronic copies of these documents can be distributed without any restrictions. You can post information from this site on any other site. INTERSTATE STANDARD UNIFIED SYSTEM OF DESIGN DOCUMENTATION LINES GOST 2.303-68 IPK STANDARDS PUBLISHING HOUSE Moscow INTERSTATE STANDARD
Approved by the Committee of Standards, Measures and Measuring Instruments under the Council of Ministers of the USSR in December 1967. The deadline for introduction is set from 01.01.71 1. This standard establishes the styles and main purposes of lines in the drawings of all industries and construction, performed in paper and (or) electronic form. Special purpose of lines (image of threads, slots, boundaries of zones with different roughness, etc.) are defined in the relevant standards of the Unified Design Documentation System. (Changed edition, Rev. No. 1, 2,). 2. The name, style, thickness of the lines in relation to the thickness of the main line and the main purpose of the lines must correspond to those indicated in Table. . Examples of the use of lines are shown in Fig. - . (Revised edition, Rev. No. 1). 3. For cuts and sections, it is allowed to connect the ends of an open line with a dash-dotted thin line. Revised edition, Rev. Number 3). 4. In construction drawings in sections, visible contour lines that do not fall into the sectional plane are allowed to be made with a solid thin line (Fig.). 5. Thickness of the solid main linesshould be in the range from 0.5 to 1.4 mm, depending on the size and complexity of the image, as well as on the format of the drawing. The thickness of lines of the same type must be the same for all images in this drawing, drawn at the same scale. Table 1
Heck. 6
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