Kemiteknik

Kommittébeteckning: SIS/TK 410 (Hydrogenteknik)
Källa: ISO
Svarsdatum: den 1 maj 2018
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This International Standard defines or recommends the minimum design, installation, commissioning, operation, inspection and maintenance requirements, for safety, and, where appropriate, for performance of public and non-public fueling stations that dispense gaseous hydrogen to light duty road vehicles (e.g. Fuel Cell Electric Vehicles).

NOTE 1 These requirements or recommendations are in addition to applicable national regulations and codes, which can prohibit certain aspects of this document.

NOTE 2 The dispensing of hydrogen outside the limits defined within this document, is outside the scope of this document. Therefore requirements or recommendations for dispensing of gaseous hydrogen should not be treated as applicable for example for cryogenic hydrogen dispensers.

While this document is targeted for the fueling of light duty hydrogen road vehicles, requirements and guidance for fueling medium and heavy duty road vehicles (e.g. buses, trucks) are also covered.

Many of the generic requirements within this Standard are applicable to fueling stations for other hydrogen applications, including but not limited to the following:

• fueling stations for motorcycles, fork-lift trucks, trams, trains, fluvial and marine applications;

• fueling stations with indoor dispensing;

• residential applications to fuel land vehicles;

• mobile fueling stations; and

• non-public demonstration fueling stations.

However, it should be noted that further, specific requirements that may be necessary for the safe operation of such fueling stations are not addressed in this Standard.

This Standard provides requirements for and guidance on the following elements of a fueling station (see Figure 1 and Figure 2):

— hydrogen production/delivery system

— delivery of hydrogen by pipeline, trucked in gaseous and/or liquid hydrogen, or metal hydride

storage trailers;

— on-site hydrogen generators using water electrolysis process or hydrogen generators using fuel

processing technologies;

— liquid hydrogen storage;

— hydrogen purification systems, as applicable;

— compression

— gaseous hydrogen compression;

— pumps and vaporizers;

— gaseous hydrogen buffer storage;

— pre-cooling device;

— gaseous hydrogen dispensers.

Figure 1 — Example of typical elements that a fueling station may consist of, including hydrogen supply

Figure 2 — Image of an example hydrogen fueling station

 

 

Kommittébeteckning: SIS/TK 410 (Hydrogenteknik)
Källa: ISO
Svarsdatum: den 1 maj 2018
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ISO 22734 defines the construction, safety and performance requirements of modular or factory-matched hydrogen gas generation appliances, herein referred to as hydrogen generators, using electrochemical reactions to electrolyse water to produce hydrogen.

ISO 22734 is applicable to hydrogen generators that use the following types of ion transport medium:

— group of aqueous bases;

— group of aqueous acids;

— solid polymeric materials with acidic function group additions, such as acid proton exchange membrane (PEM).

— solid polymeric materials with basic function group additions, such as anion exchange membrane (AEM).

ISO 22734 is applicable to hydrogen generators intended for industrial and commercial uses, and indoor and outdoor residential use in sheltered areas, such as car-ports, garages, utility rooms and similar areas of a residence.

Hydrogen generators that can also be used to generate electricity, such as reversible fuel cells, are excluded from the scope of ISO 22734.

Residential hydrogen generators that also supply oxygen as a product are excluded from the scope of ISO 22734.

Kommittébeteckning: SIS/TK 410 (Hydrogenteknik)
Källa: ISO
Svarsdatum: den 1 maj 2018
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This International Standard specifies the requirements for design, manufacture and testing of standalone or manifolded (for some specific tests such as bonfire) cylinders, tubes, and other pressure vessels of steel, stainless steel, aluminium alloys or of non-metallic construction material. These are intended for the stationary storage of gaseous hydrogen of up to a maximum water capacity of 10 000 l and a maximum allowable working pressure not exceeding 110 MPa, of seamless metallic construction (Type 1) or of composite construction (Types 2, 3 and 4), hereafter referred to as pressure vessels. Type 2 and 3 vessels with welded liners are excluded.

For an existing design already qualified for other applications (e.g. transportable applications) follow the requirements of Annex B.

This International Standard is not intended as a specification for pressure vessels used for solid, liquid hydrogen or hybrid cryogenic-high pressure hydrogen storage applications.

This International Standard does not include external piping which can be designed according to a recognized standard (e.g. ISO 15649).

Kommittébeteckning: SIS/TK 495 (Kosmetik samt analysmetoder för allergener)
Källa: CEN
Svarsdatum: den 5 maj 2018
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This International Standard comprises:

— a preservation efficacy test;

— a procedure for evaluating the overall antimicrobial protection of a cosmetic product which is not considered low risk, based on a risk assessment described in ISO 29621.

This International Standard provides a procedure for the interpretation of data generated by the preservation efficacy test or by the microbiological risk assessment, or both.

1.2 Preservation efficacy test

This test is a reference method that is to be used to evaluate the preservation of a cosmetic formulation. It applies to cosmetic products in the market place.

This test is not required for those cosmetic products for which the microbiological risk has been determined to be low (see Annex A and ISO 29621).

This test is primarily designed for water-soluble or water-miscible cosmetic products and can require adaptation, for example to test products in which water is the internal phase. The test described in this

International Standard involves, for each test micro-organism, placing the formulation in contact with a calibrated inoculum, and then measuring the changes in the micro-organism count at set time intervals for a set period and at a set temperature.

NOTE This test can be used as a guideline to develop an in-house method during the development cycle of cosmetic products. In this case, the test can be modified or extended, or both, for example to make allowance for prior data and different variables (microbial strains, media, incubation conditions exposure time, etc.). Compliance criteria can be adapted to specific objectives. During the development stage of cosmetic products, other methods, where relevant, can be used to determine the preservation efficacy of formulations.

1.3 Procedure for evaluating the antimicrobial protection of the cosmetic product

This procedure is based on careful consideration of the following points.

— Results of the preservation efficacy test. Not all cosmetic products will require a preservation efficacy test (see Annex A and ISO 29621).

— Formulation characteristics and data provided by the microbiological risk assessment (see ISO 29621).

The analysis of the microbiological risk assessment is based on an overall approach. In particular, it integrates variables such as characteristics and composition of the formulation, its production conditions, the characteristics of the packaging in which the formulation will be delivered to the market place, recommendations for use of the cosmetic product and, when relevant, the area of application and the targeted user population (see Annex D).

Kommittébeteckning: SIS/TK 440 (Laboratorieutrustning)
Källa: CEN
Svarsdatum: den 31 maj 2018
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This document applies to Recirculatory Filtration Fume Cupboards (RFFC).

Recirculation Filtration Fume Cupboards are devices intended to protect their users by means of:

— the ability to contain potentially hazardous materials;

— the ability to remove potentially hazardous materials from air exhausted from within the fume cupboard by means of filtration before the air is recirculated (to the room in which the fume cupboard is located).

This document includes design and manufacturing requirements together with type testing procedures.

Ämnesområden: Kemisk analys
Kommittébeteckning: SIS/TK 423 (Luftkvalitet)
Källa: ISO
Svarsdatum: den 5 jun 2018
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This document sets requirements for the purity analysis of materials used in the preparation of calibration gas mixtures and the use of these data in calculating the composition of the mixture thus prepared.

Kommittébeteckning: SIS/TK 391 (Möbler)
Källa: CEN
Svarsdatum: den 5 jun 2018
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This document applies to workbenches, movable science tables and workbench shelves designed for use in educational institutions and similar laboratories.

This document specifies safety and durability requirements and test methods and gives dimensions.

Requirements and test methods related to the fire safety or workbenches and to the resistance of the work surface are not included in this document.

Requirements concerning electrical safety are not included.