Strojírenství

Komise : CEN/TC 433 (Entertainment technology – Equipment, technical installations and machinery used on stages and other production areas within the entertainment industry)
Původce: CEN
K připomínkám do: 2.11.2021
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This document specifies the safety requirements for planning, selection, production, intended use as well as testing of aluminium stage decks and frames that are capable of being used as aluminium stage decks, inclinations, steps and stairs; including railings for performance areas (stages) and stands.

This document deals with all of the significant hazards, hazardous situations or hazardous events relevant to aluminium stage decks and frames when they are used as intended and under conditions of misuse reasonably foreseeable by the manufacturer.

If these products become components of a built environment, then structural requirements are expected to be taken into consideration.

This document does not apply to scaffolding used as substructures in stage and studio environments in accordance with the standard series EN 12810 and EN 12811 and not for fairground rides in accordance with EN 13814‑1.

Oblast zaměření: Armatury
Komise : CEN/TC 69 (Industrial valves)
Původce: CEN
K připomínkám do: 16.11.2021
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This document provides basic requirements for pneumatic part-turn valve actuators, both double acting and single acting, used for on-off and modulating control duties.

It includes guidelines, recommendations and methods for enclosure and corrosion protection, control and testing.

It does not apply to pneumatic actuators which are integral parts of control valves and to pneumatic actuators designed for permanent immersion in fresh or sea water.

Other requirements, or conditions of use, different from those indicated in this document, are expected to be subject to negotiations, between the purchaser and the manufacturer/supplier, prior to order.

Komise : CEN/TC 305 (Potentially explosive atmospheres. Explosion prevention and protection)
Původce: CEN
K připomínkám do: 16.11.2021
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This document specifies the requirements for equipment and protective systems for firedamp drainage at mines. It also contains requirements for the construction and monitoring of this equipment and protective systems (see EN 1127‑2:2014).

This document does not apply to firedamp utilization systems beyond the utilization shut-off device.

Oblast zaměření: Nádoby na plyny
Komise : CEN/TC 23 (Transportable gas cylinders)
Původce: CEN
K připomínkám do: 16.11.2021
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This document specifies minimum requirements concerning material, design, construction and workmanship, manufacturing processes and testing of refillable transportable welded carbon steel gas cylinders of water capacities up to and including 150 l for compressed, liquefied and dissolved gases.

For cylinders made from high frequency induction (HFI) welded steel tubes by spinning of the end, the requirements are given in Annex A. This document is primarily for industrial gases other than LPG but can also be applied for LPG. However, for dedicated LPG cylinders, see EN 1442, Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Design and construction prepared by CEN/TC 286 Liquefied petroleum gas equipment and accessories.

Oblast zaměření: Armatury
Komise : CEN/TC 69 (Industrial valves)
Původce: CEN
K připomínkám do: 16.11.2021
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This document provides basic requirements for piston type hydraulic linear actuators for industrial valve, both double acting and single acting, used for on-off and modulating control duties. It includes criteria, method and guidelines for design, qualification, corrosion protection, control and testing.

It does not apply to hydraulic actuators which are integral parts of control valves. Other requirements, or conditions of use, different from those indicated in this document, are expected to be subject to negotiations, between the purchaser and the manufacturer/supplier, prior to order.

Oblast zaměření: Zemědělské stroje
Komise : CEN/TC 144 (Tractors and machinery for agriculture and forestry)
Původce: CEN
K připomínkám do: 30.11.2021
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This document applies to front and rear-mounted implements on agricultural or forestry tractors, trailers or on towed machinery.

It specifies the requirements for lighting and light-signalling devices to be installed on the implement for safe on-road use.

Komise : CEN/TC 313 (Industrial centrifuges. Safety requirements (provisional title))
Původce: CEN
K připomínkám do: 30.11.2021
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This document specifies the procedure for the determination of the certified flow rate (CFR), a performance parameter for centrifuges, at specific fuel oil viscosities using a defined test oil and a defined test procedure.

This document is applicable to marine fuel centrifuges.

All values reported as CFR capacities are verified measured values on a defined CFR test bench.

Scaling based on Stoke’s law and disc stack design is excluded from this document.

Separation efficiency is determined by a defined particle counting method.

Oblast zaměření: Obráběcí stroje
Komise : CEN/TC 145 (Plastics and rubber machines)
Původce: CEN
K připomínkám do: 30.11.2021
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This document deals with all significant hazards, hazardous situations or hazardous events relevant to two-roll mills for the processing of rubber and/or plastics (see Annex A), when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer during all the phases of the life of the machine as described in EN ISO 12100:2010, 5.4.

This document covers two-roll mills as defined in 3.1.

This document deals with the following ancillary equipment as integral part of the machine:

—    powered stock guides;

—    strip cutting device;

—    stock blender;

—    recovery conveyor belt;

—    retractable ploughs;

—    secondary roller.

This document does not deal with the design of a local exhaust ventilation system that may be necessary in specific applications of the machine not known by the manufacturer.

This document is not applicable to two-roll mills manufactured before the date of its publication as a European Standard.