Appareils de protection respiratoire — Facteurs humains — Partie 5: Effets thermiques
Le présent document fait partie d'une série de Normes internationales fournissant des informations sur les facteurs liés à l'anthropométrie, à la physiologie humaine, à l'ergonomie et aux performances en vue de l'élaboration de normes relatives à la conception, aux essais et à l'utilisation d'appareils de protection respiratoire. Il contient des informations…
Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
This document specifies accelerated ageing or heat resistance tests on vulcanized or thermoplastic rubbers/thermoplastic elastomers. Four methods are possible, they are detailed in Clause 5.
Systèmes frigorifiques et pompes à chaleur — Compétence du personnel
Le présent document définit les activités liées aux systèmes frigorifiques conformément à l’ISO 5149-1, l’ISO 5149-2, l’ISO 5149-3 et l’ISO 5149-4, et d’autres normes équivalentes, telles que l’EN 378-1, l’EN 378-2, l’EN 378-3, l’EN 378-4 et les profils de compétences associés. Il établit également des critères de compétence pour les personnes qui réalisent ces activités. Les activités liées à l…
Refrigerating systems and heat pumps — Competence of personnel
This document defines the activities related to refrigerating systems according to ISO 5149‑1, ISO 5149‑2, ISO 5149‑3 and ISO 5149‑4 and other equivalent standards, such as EN 378‑1, EN 378‑2, EN 378‑3, EN 378‑4 and the associated competence profiles. It also establishes the competence criteria for persons who carry out these activities. Activities concerning electricity are excluded.
NOTE 1 As…
Industrial communication networks - Fieldbus specifications - Part 3-2: Data-link layer service defi...
IEC 61158-3-2:2023 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the "three-layer" fieldbus reference model described in IEC 61158‑1.
Throughout the set of fieldbus standards, the term "service" refers to the abstract capability provided by one layer of the OSI Basic…
Industrial communication networks - Fieldbus specifications - Part 4-2: Data-link layer protocol spe...
IEC 61158-4-2:2023 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the "three-layer" fieldbus reference model described in IEC 61158‑1.
The data-link protocol provides the data-link service by making use of the services available from the physical layer. The primary aim of this…
Industrial communication networks - Fieldbus specifications - Part 5-23: Application layer service d...
IEC 61158-5-25:2023 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 23 fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level…
Industrial communication networks - Fieldbus specifications - Part 5-24: Application layer service d...
IEC 61158-5-24:2023 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 24 fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level…
