Please be advised that a New Work Item Proposal has been loaded to the BSI Standards Development Portal for comment.

Any comments received will be submitted to the national committee AMT/4 “Industrial data and manufacturing interfaces” for consideration when deciding the UK response to the associated Standards Development Organisation.

  1. Proposal: Industrial automation systems and integration — Numerical control systems for machine tools — Part 3: Safety requirements

Please visit: ISO/NP 23218-3 (Ed 2)

Comment period end date:17/04/2024


This document is to specify requirements and related tests for the safety of numerical control system. It consists of safety principle, protection, verification and information for use, etc.

This document is applicable to NC systems used in machine tools (including metal cutting machine tools, metal forming machine tools and woodworking machine tools, etc.) and to partial assemblies of machine tools (including cabinets and auxiliary devices) intended to be integrated into machine tools. It is also applicable to other production equipment using NC systems.

This standard is applicable to the design, manufacture, production, use and maintenance of NC systems.

This standard does not cover function, performance, or other properties of the NC system for machine tools that not related to safety;

The general functions, performance or characteristics of NC system should comply with the relevant ISO / IEC standards.


In recent years, international trade in machine tools is increasing rapidly. With the development of world industry, machining functions of machine tools becomes more and more complex. High-speed, high-accuracy, intelligence, green, customized manufacturing etc. give much challenge to machine tools. As the brain of Machine tools, NC system is one of the most important components of machine tool. Its functions are closely related or even are the deterministic to machine tool functions. However, until now, with the rapid growing of NC system market, there is no international standard developed for NC system to guarantee its quality and healthy developing. The situation caused barriers for NC system international trade time to time caused by differing technical requirements that are valid in different countries.

The purpose of the proposed standard is to promote the harmonization of national specification, requirements and related tests for the safety of numerical control system. It consists of safety principle, protection, verification and information for use. The main interests expected to benefit from the proposed standard are NC system vendors, machine tool manufactures who use NC system, and end users of machine tool with NC system. This standard will not only help the stages of NC system design, integration and using, but also give a harmonized rule to remove divergence in the world trade. It will surely promote the development of NC system market and give great help to NC machine tool industry to fulfill the continuous increasing requirements of the society. 

  • Proposal: Ergonomics — Accessible design — Method for creating colour combinations — Part 3: For population with diverse colour vision

Please visit: ISO/NP 24505-3

Comment period end date:12/05/2024


This part of document ISO 24505 provides a method for creating conspicuous colour combinations for general population. This includes individuals with diverse colour vision characteristics such as colour deficiency, low vision, and age-related changes in colour perception. The basic method is based on that prescribed in ISO 24505 and ISO 24505-2, which collectively address the full spectrum of colour vision types covered in these referenced standards. This part of document addresses the design of visual signs and displays in which multiple colours are used in various types of combinations in order to make the combinations visible, conspicuous and comprehensive to people with the diversity of colour vision. Moreover, the requirements presented in this part, along with those found in ISO 24505 and ISO 24505-2, are primarily oriented towards reflective or object-mode colours. However, they may also be adapted for application to self-luminous-mode colours provided that the colour coordinates are appropriately transferred to those of the object-mode colours. For the special use of colour for safety, selection of colours and their combinations shall comply with ISO 3864-1.


The richness of colour information in our physical environment is growing thanks to advancements in information technology. However, the spectrum of human colour vision varies widely, meaning not everyone can access this information equally. Factors such as aging or colour vision deficiencies can hinder some individuals from identifying or differentiating colours. Consequently, when creating public visual signs or displays, it’s crucial to take into account the variations in human colour perception to make the information accessible to the widest range of people. Addressing the challenges of diverse colour vision capabilities, ISO 24505 and ISO 24505-2 provide methods for creating discernible colour combinations. The former caters to individuals with normal colour vision affected by age-related changes, while the latter is tailored for those with colour vision deficiencies and low vision. Given that the general population possesses a range of colour vision capacities, as previously noted, there is a need to apply these methods more broadly.
This document introduces a method under ISO 24505 for developing colour combinations suitable for the general population. This encompasses individuals with colour deficiency, those with low vision, and those with age-related changes of colour vision. ISO 24505 series is structured into various components, each focusing on methods and data for creating discernible colour combinations:
— Part 1: For young and older people without visual impairments
— Part 2: For people with colour deficiency and people with low vision
— Part 3: For population with diverse colour vision
Throughout these documents, the Munsell Colour System is employed for colour descriptions, which is recommended by the Commission Internationale de l’Eclairage [1] for a consistent colour order system. Furthermore, this document aligns with the accessibility guidance stipulated in ISO/IEC Guide 71 [2] and the design guidelines set out in ISO/TR 22411 [3].

  • Proposal: Ergonomics — Industrial automation systems and integration — JT file format specification for 3D visualization — Part 3: Version 2

Please visit: ISO/NP 14306-3 (Ed 2)

Comment period end date:18/05/2024


The JT file format specification for 3D visualization specifies the sequential order of bytes that comprise the segments of data required to represent an ISO 14306 file. The JT format is uniquely compressed to minimize file size.

The JT file format specification for 3D visualization includes data descriptions that can represent the
following data.

— facet information (triangles), stored with geometry compression techniques;
— visual attributes such as lights, textures and materials;
— product manufacturing information (PMI);
— boundary representation (b-rep) solid model shape representation and associated metadata;
— configuration representations; and
— delivery methods such as asynchronous streaming of content.

The JT file format specification for 3D visualization does not specify the implementation of, or definition
of, any runtime architecture for viewing and/or processing ISO 14306 data


ISO 14306 Edition 2 was published in 2017 based upon JT 9.5 file format. The ISO 14306 standard has now become a multipart standard. However, there is a continuing requirement to maintain the support of the existing ISO 14306 representations based upon the JT 9.5 file format.

Therefore it is proposed to continue to maintain the ISO 14306:2017 Ed2 specification and change the document title to be “ISO 14306-3: Industrial automation systems and integration – JT file format specification for 3D product data visualization. Part 3 : Version 2”.

In addition to the change in the document title there are a number of minor editorial changes to be made to reference the multipart update of ISO 14306. There is also a requirement to correct an error in the original document whereby the value of the scheme TRANSMIT FILE in section H.2 was incorrectly specified.

Due to a significant investment in ISO 14306 data and in software to support their workflows, the following industries have formally expressed a desire for this standard to be updated; Automotive and Transportation, Aerospace & Defence, Industrial Machinery & Heavy Equipment, Marine, Electronics & Semiconductors, Energy & Utilities, Medical Devices & Pharmaceuticals and Consumer Products. 

If you have any comment or need more information, please contact Sami Ortiz at [email protected]

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