Metallurgi

Kommittébeteckning: SIS/TK 130 (Gjutet järn och stål)
Källa: ISO
Svarsdatum: den 27 feb 2019
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1.1 This International Standard covers the acceptance criteria for the surface inspection of steel and iron castings by visual testing.

1.2 Acceptance levels utilize Bureau de Normalisation des Industries de la Fonderie (BNIF) and Steel Castings Research and Trade Association (SCRATA) or Casting Technology International (CTI) reference comparators for the visual determination of surface roughness and surface discontinuities described as follows:

— surface roughness;

— thermal dressing;

— mechanical dressing;

— nonmetallic inclusions;

— gas porosity;

— fusion discontinuities;

— expansion discontinuities;

— metal inserts.

Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: ISO
Svarsdatum: den 12 mar 2019
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This international standard applies to the design, manufacture, installation and operation of flares for the combustion of biogas. Test methods and performance requirements are also included.

Biogas systems are amongst others applied at industrial plants like food and beverage industries, waste water treatment plants, waste plants, landfill sites, small scale plants next to agricultural companies and small scale household systems.

Kommittébeteckning: SIS/TK 132 (Koppar)
Källa: CEN
Svarsdatum: den 21 mar 2019
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Kommittébeteckning: SIS/TK 129 (Lättmetaller)
Källa: CEN
Svarsdatum: den 7 apr 2019
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This document specifies a gravimetric method for determining the mass per unit area (surface density) of anodic oxidation coatings on aluminium and its alloys.

The method is applicable to all oxidation coatings formed by anodizing aluminium and its alloys, either cast or wrought, and is suitable for most aluminium alloys, except those in which the copper content is greater than 6 %.

NOTE 1 A high content of copper in the alloy can lead to increased dissolution of the basis aluminium.

NOTE 2 If the thickness is known with sufficient precision (for example, using the method specified in ISO 2128, (1)), determination of the mass per unit area (surface density) of the coatings will enable its apparent density to be calculated. Conversely, if the conditions of application of the coating and its density are known, the determination of its mass per unit area (surface density) can permit calculation of the average mass and an approximate evaluation of the thickness (see the Note in Clause 9).