Kemesta

 

This document defines the overall requirements and architecture for the communication system used to fuel gaseous hydrogen Vehicles. Since this document precedes industry applications it is written in the context of anticipated use. Specific systems may be given as examples, but applying the communication protocol is not limited to a particular system. The document includes requirements for the hardware, software, identification of Vehicle, communication structure, and integrity of the data. The communication protocol is intended to be capable of: Exchange of data for identifying the vehicle Exchange of data for the relevant parameters of its VFS Exchange of data for optimizing fuelling protocol Exchange of data in a safe and reliable manner This version of ISO 19885-2 does not include communications not directly related to the fuelling of Vehicle, such as payment methods. This document is intended to be used in conjunction with the family of ISO 19885 documents. It takes the general fuelling protocol requirements in ISO 19885-1 and adds communication specific requirements which would apply to all communications systems used in hydrogen fuelling. Example physical layers are included in the annex to provide guidance. Additional editions of ISO 19885 (e.g. 19885-3) will use this ISO 19885-2 to specify their communication systems for each fuelling protocol within their document.

 

This document specifies test methods for the determination of strength, durability and stability of the structure of all types of seating without specific regard to end use, materials, design/construction or manufacturing process. This document does not apply to children’s highchairs, table mounted chairs and bath seats. Test methods for the assessment of ageing, degradation, ergonomics and electrical functions are not included. The test methods are not intended to assess the durability of upholstery materials.

 

This document specifies ergonomic, technical and safety requirements for wall-mounted and free-standing writing boards, white projecting boards, interactive systems and interactive screens for use in rooms for educational and training purposes, e.g. classrooms, lecture theatres for schools, universities, etc. This document applies is applicable to units after installation. Safety depending on the structure of the building is not included, e.g. the strength of wall-mounted boards includes only the board and its parts. The wall and the wall attachment are not included. This document does not apply to technical aspects of connected hardware, such as computers, speakers, video cameras. Requirements concerning electrical safety are not included. Annex A (normative) Assessment scale for the ability to write – Five levels chalk scale Annex B (normative) Test methods and requirements for white projecting boards Annex C (informative) Additional test methods and requirements for white projecting boards Annex D (normative) Test methods and requirements for interactive systems Annex E (informative) Additional test methods and requirements for interactive systems Annex F (normative) Test methods and requirements for interactive screens Annex G (informative) Additional test methods and requirements for interactive screens Annex H (normative) Surface flatness test Annex I (informative) Vibration test