Technical Drawing Standardization Functions and Explanations – The following is an explanation of the image standardization function that you may not know about for image lovers. So, let's look at the article below carefully and carefully.

Standard engineering drawings, which are generally more visible in the form of letters and numbers. Usually, letters and numbers serve to describe the visuals.

To complete the information on technical drawings to avoid misunderstanding, letters, numbers and symbols must be arranged convincingly with additional information or explanations.

Then, enter the letters and numbers in the line so that it conforms to the standard. In technical drawing, many types of lines are used, each with its own meaning and use.

Technical Drawing Activities

Technical Drawing Activities

In a location known as a drawing studio, engineering drawing assignments are performed (engineering design department). Engineers responsible for creating design drawings are known as designers.

Definition of Technical Drawings

Engineering drawings is a tool used by technical specialists to communicate your thoughts and concepts, which can also be referred to as a technical language. As a language, technical drawing must convey information properly and objectively.

Technical Drawing Function

Technical drawings serve three purposes: transmission of information, documentation, and expression of development concepts.

Submit information

At the start of the industry, the same individual was responsible for the planning and production of technical products. There is no need for guidelines in this case because the image only serves as a depiction of an idea.

Once the industry started to develop, separate individuals were responsible for the planning and production of technical products. In this case, drawings serve as a way for designers (designers) and manufacturers (operators) to share information.

Documentation Material

A technical drawing is an important document that offers brief technical information about a product. By storing and archiving images for use as informational information, images are documented.

Pouring Ideas for Development

In drawing form, a designer draws from abstract conceptions of technical materials into shapes (usually sketches). The image is then constantly looked at and studied so that the perfect image can be created.

Definition of Image Standardization

Image standardization involves standardizing how images are created and interpreted. If the people in the engineering environment who create and read technical drawings use the same standard, this means that the technical drawings are standardized.

Image Standardization Function

The following is the standardization function of technical drawings:

  1. To provide clarity to image creators and readers regarding the suitability of drawing guidelines.
  2. A uniform interpretation of the use of symbols is shown visually.
  3. This facilitates communication between artists and image consumers.
  4. Facilitating business cooperation in the mass production of technical goods (mass production).
  5. Streamlining the production and distribution of spare parts.

Kinds of Standardization

Among the most prominent standards are:

  1. JIS (Japanese Industrial Standard), an industrial standard in Japan.
  2. NNI (Nederland Normalisatie Instituut), industrial standardization in the Netherlands.
  3. DIN (Deutsche Industrie Normen), industrial standardization in Germany.
  4. ANSI (American National Standard Institute), industry standardization in America.

In addition, our country has national standards. formerly known as the Indonesian Industrial Standards (SII).

However, after the issuance of Government Regulation Number 15 of 1991 concerning the Indonesian National Standard, it was replaced with the Indonesian National Standard (SNI). The National Standardization Council manages SNI (DSN).

ISO International Standard

To meet the world's demands, the International Organization for Standardization (ISO) was established as an international standard setting body (ISO).

The International Organization for Standardization (ISO) was formed on October 14, 1946 as a replacement for the International National Standardizing Association (ISA) which was disbanded in 1942.

By setting standards, ISO aims to harmonize technical knowledge between countries. ISO/TC 10 is the designation for engineering drawing standards committee. The National Standardization Council represents Indonesia's membership in ISO. Indonesia is a member of ISO.

Image Properties and Image Standard Development

The following is an explanation of image properties and the development of image standards, including:

Definition of Technical Drawings

Image Assurance

The role of images as a source of information, connecting the designer with the people who use them, must offer definite information and must not create uncertainty.

Due to the variety of products, it is difficult for experienced employees to discern the importance of individual photos. Within a language, symbols must replace tones, and meanings must be standardized universally.

When setting standards, it is important to think about how much certainty that can be created, because the best conditions for standards need to be created.

Relationship between Function and Image Properties

Information transmission is the most important function of an image, which is controlled by several aspects. Therefore, the means of dissemination of information should take priority over any other.

Simplification of drawings and reduced drawing ability can result in image defects. In other words, an image that others would use had to be created and similar information had to be passed along.

Nature and Development of Drawing Standards

As previously indicated, drawing standards incorporate information preparation and information delivery, and as indicated earlier, clarity plays a role.

In developing drawing standards, it is very important to determine the ideal state of the current state of technology and to choose between these contradictory criteria.

ISO/TC10 Framework and Field of Work (Technical Drawings)

The following is a framework and working areas of technical drawings, including:

ISO/TC 10 Framework

Technical drawings have played an important role in the standardization of technical drawings to provide technical drawings with a worldwide character as an international technical language.

Under SC1, which sets the overall regulatory standard for engineering drawings, there are two main categories: emblematic drawings and working drawings.

According to the various fields, the symbol image section is further separated into SC2, SC3, and SC4. SC5 manages three SCs managing various specialized sectors, such as equipment, steel framing and buildings.

The SC5 is in charge of dividing up the work drawings, which means determining sizes and tolerances.

ISO/TC activities 10

The following are the activities of IDO/TC 10, including:

Activity SC 1 (Basic Principles)

SC 1 has set broad standards for drawing and is responsible for most of the work of TC 10. The most significant task of SC 1 is learning to present the basics.

The findings have been specified in ISO/DIS 128, which includes the presentation of steel framing and building drawings after the establishment of the ISO/R 128 recommendation of 1958, which is currently under review and improvement.

Live image presentation is a method of displaying something using a single image display. For letters, ISO 3098/Z has developed a set of numbers and letters specifically printed using screen printing.

A scale has been used to classify preferred prices. The surface configuration of a part can be shown on the drawings using symbols to indicate the surface roughness and machining direction.

The symbols for the welds in the drawings have been determined by the depiction of the symbols in the drawings.

Giving Tolerance and Size

SC 5 has taken care of size and tolerance issues and has the following responsibilities:

  1. Size and tolerability must be determined.
  2. Tolerance and standing (geometric tolerance).
  3. You provide custom sizes and tolerances for elements.
  4. Dimensions and tolerances.

The standard defines how image sizes are allocated, and the standard is currently under review and revision. The main causes of improvement are:

  1. Sizing setters for structures shall be provided.
  2. As far as possible, symbols should be used for internationalization rather than records in one language.
  3. ISO/R 406 specifies the representation of linear and angular tolerances.
  4. Display of drawing tolerances for shape, position, location, and rotational deviation (out).

The geometric tolerance is a description of the tolerance of shape, position, location, and rotational deviation. The acceptable range for an element (such as points, axes, surfaces, etc.) is determined by its geometric tolerances.

  1. Gives Custom Element Sizes and Tolerances.
  2. When it comes to unique parts like cones, the way in which the dimensions and tolerances are given must be clear and the same everywhere.
  3. SC 6 Operations (Special Presentation of Technical Drawings).
  4. Special presentations are managed in SC 6 and categorized as.
  5. Conventional or efficient depiction of a machine component or machine part.
  6. Presentations in specialty domains such as glassware, optical components, and pipelines, etc.
  7. Process labeling on drawing.

SC 2, SC 3 and SC 4 activities

Technical Drawing Function

The vacuum technology symbol is the main concern of SC 2. Instrument symbols have been provided in SC 3. SC 4 defines the kinematics symbols, which are used in machine frame diagrams to show how the machine parts work in terms of kinematics.

Tasks of Designers, Draftsmen and Image Users

A designer's work begins with creating an image. Preliminary drawings are then studied to identify what material the component should be made of and how the component should be made.

The designer must also provide information on the number of parts to be produced and their assembly. Using the results of the analysis, the sketch is converted into a design drawing that provides specific information. As a consequence of the design process, working drawings are the final product.

A designer is supported in creating working drawings by a draftsman who is responsible for presenting the information on the drawings concisely while incorporating all of the designer's ideas.

When providing a drawing description, a draftsman should always check with the designer or process planner.

Operators are responsible for converting images into physical objects. Besides being able to run the machine, an operator must be able to read drawings or know how to draw according to drawing standards.


So, that is the meaning of the standardization function of technical drawings. In technical drawing, many types of lines are used, each with its own meaning and use. Letters and numbers serve to explain the visuals.

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