Pregled nacrta

The scope of this proposal is to establish a methodology and analytical framework to determine
the GHG emissions related to a unit of conditioned and transported liquid hydrogen up to the
consumption gate.

The scope of this proposal is to establish a methodology and analytical framework to determine the GHG emissions related to the production and transport of Ammonia up to the consumption gate and related to the conversion of Ammonia into hydrogen and its transport to consumption gate.

In general terms, Miner’s rule is a common approach to calculate how the accumulation of a specific load that varies over time effects the time until failure.

This international standard specifies the application of Miner’s rule for calculating the design time until failure of plastics pipes and piping systems of plastics materials under varying, but known, load conditions. Miner’s rule can also be applied reciprocally to calculate the tolerable load levels along a desired design time.

This international standard specifies particularly the application of Miner’s rule to calculate stress or pressure regimes, respectively, that are tolerable during a targeted design time for plastics or composite pipes.

Further, the application of Miner’s rule on the effect of accumulated damage on polyolefins caused by oxidative attack under varying temperatures and times on the design life is specified.

It is necessary to apply Miner's rule to each failure mechanism separately. Thus, for mechanical failure due to internal pressure, other failure mechanisms, such as oxidative or dehydrochlorinative degradative failure mechanisms, are to be neglected (assuming, of course, no interaction). A material may be used only when it is proven to conform to all failure mechanism criteria.

NOTE — Miner's rule is an empirically based procedure and is only a first approximation to reality.

ISO 17879:2017 specifies the design, type testing, marking and manufacturing tests and examinations requirements for self-closing cylinder valves intended to be fitted to refillable transportable gas cylinders which convey compressed, liquefied or dissolved gases.
NOTE 1 The main applications for such self-closing cylinder valves are in the calibration gas and beverage industries.
ISO 17879:2017 covers the function of a self-closing cylinder valve as a closure.
NOTE 2 Requirements for standard cylinder valves are given in ISO 10297. Requirements for quick-release cylinder valves are given in ISO 17871.
ISO 17879:2017 is not applicable to self-closing cylinder valves for cryogenic equipment, for portable fire extinguishers, or for liquefied petroleum gas (LPG).
NOTE 3 Requirements for valves for cryogenic vessels are specified in ISO 21011 and at a regional level, for example, in EN 1626. Requirements for valves for portable fire extinguishers at a regional level are specified, for example, in EN 3 series. Requirements for self-closing LPG cylinder valves are specified in ISO 14245.
NOTE 4 Additional requirements for pressure-relief devices might be specified in international/regional regulations/standards.

This document specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in alloy steel, cadmium plated.
Classification: 1 100 MPa1/235 °C2.

This document specifies test methods and values for sealable adhesive coated nonwoven materials of polyolefins, manufactured from nonwovens specified in EN 868-9 used for single-use sterile barrier systems and/or packaging systems for terminally sterilized medical devices.
Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document.

This document specifies test methods and values for single-use sealable pouches and reels constructed of a porous material as specified in EN 868 part 2, 3, 6, 7, 9 or 10 and a plastic film. These sealable pouches and reels are intended to be used as sterile barrier systems and/or packaging systems for terminally sterilized medical devices. Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document.

This document specifies test methods and values for re-usable containers used as sterile barrier systems for terminally sterilized medical devices. These containers are intended to be used in large steam sterilizers as specified in EN 285.
Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document.
This document does not cover additional materials and/or accessories inside the sterile barrier system in order to ease the organization, drying or aseptic presentation (e.g. inner wrap, indicators, packing lists, mats, instrument organizer sets, tray liners or an additional envelope around the medical device).

This document specifies test methods and values for uncoated nonwoven materials of polyolefins used for single-use sterile barrier systems and/or packaging systems for terminally sterilized medical devices.
Other than the general requirements as specified in EN ISO 11607-1 and EN ISO 11607-2, this part of EN 868 series specifies materials, test methods and values that are specific to the products covered by this document.

This document compiles a vocabulary of terms, with their definitions, applied in the field of district heating and district cooling systems.

This document specifies requirements for coloured or uncoloured anodic oxidation coatings on wrought and cast products in aluminium and aluminium alloys for use in contact with food.
These requirements cover the chemical composition of the bath, the sealing and the properties of the obtained anodic oxidation coatings. They do not cover dyestuffs and pigments but do cover the metallic deposits produced by electrolytic colouring.

This document specifies the minimum requirements for the safety, strength and durability of all types of domestic seating for adults. It also specifies additional test methods for seat side-to-side durability as well as finger entrapment and shear and compression.
It does not apply to ranked seating, seating for non-domestic use, office work chairs, chairs for educational institutions, outdoor seating and to links for linked seating for which European Standards exist.
It does not include requirements for the durability of upholstery materials, castors, reclining and tilting mechanisms and seat height adjustment mechanisms.
It does not include requirements for electrical safety.
It does not include requirements for the resistance to ageing, degradation, flammability and ergonomics.
The requirements are based on use by persons weighing up to 110 kg.
Annex A (normative) specifies the seat side-to-side durability test in D-G points.
Annex B (informative) gives rationales for some of the tests referred to in Table 1.
Annex C (normative) specifies the test methods for finger entrapment and shear and compression.
Annex D (normative) specifies the seat loading point for seating with suspended flexible material.

This document specifies the minimum requirements for the safety, strength and durability of all types of domestic tables intended for use by adults, including those with glass in their construction. It also contains additional test methods in Annex A and Annex B.
It does not apply to office tables and office desks, tables for non-domestic use, tables for educational institutions or outdoor tables for which European Standards exist.
It does not apply to trestle tables.
With the exception of stability tests, this document does not provide assessment of the suitability of any storage features included in domestic tables.
It does not include requirements for electrical safety.
It does not include requirements for the resistance to ageing and degradation.
Annex A (normative) contains test methods for finger entrapment.
Annex B (informative) contains a table top deflection test.
Annex C (informative) contains a rationale.