NIEUWS

22 nov

ASTM G90-2017 “Accelerated Outdoor Weathering Testing of Non-metallic Materials by Gathering Natural Light Sources”

ASTM G90 performs accelerated outdoor aging testing of non-metallic materials by gathering natural light sources ASTM G90-2017 Release information Standard number ASTM G90-2017 Standard Practice for Accelerated Implementation of Outdoor Wind Erosion of non-metallic Materials by means of Concentrated Natural sunlight rays English name Standard Practice for Performing Accelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight Release Date 2017 Implementation date Date of repeal None Chinese standard classification number H25 ASTM G90-2017 “Accelerated Outdoor Weathering Testing of Non-metallic Materials by Gathering Natural Light Sources” Published by US-ASTM ASTM [...]

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22 nov

ASTM G92-2020 standaardpraktijk voor kenmerken van atmosferische testlocaties

ASTM G92-2020 Release information Standard number ASTM G92-2020 Standard operating procedure for atmospheric test site characteristics English name Standard Practice for Characterization of Atmospheric Test Sites Release Date 2020 Implementation date Date of repeal None China Standard classification number Z15 International Standard Classification Number 19.040 Published by US-ASTM ASTM G92-2020 Standard Operating Practice for Characteristics of Atmospheric Test Sites ASTM G92-2020 Scope of application 1.1 “” This practice covers procedures for the characterization of atmospheric test sites. Continuous characterization can provide corrosion data, environmental data, or both which will signal changes [...]

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22 nov

ASTM D2000-2018 “Norm voor classificatie van rubberproducten voor gebruik in de automobielsector”

Straal 1.1 This classification system covers the properties of vulcanized rubber materials (natural rubber, recycled rubber, synthetic rubber, alone or in combination), which include but are not limited to rubber products for automotive applications. Opmerking 1: This classification system can meet many of the needs of other industries in much the same way as SAE numbered steel. Echter, it is important to keep in mind that the system may be revised when the needs of the car require it. It is [...]

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22 nov

ASTM D2565-2016 “Xenon-boogtype-blootstellingstestmethode voor kunststoffen buitenshuis”

Betekenis en gebruik 4.1 The ability of plastic materials to resist deterioration of electrical, mechanical and optical properties due to exposure to light, heat and water is important for many applications. This practice is designed to cause changes in properties related to end-use conditions, including the effects of daylight, moisture, and heat. The exposures used in this practice are not intended to simulate deterioration caused by local weather phenomena, such as atmospheric pollution, biological attacks, and salt water exposure. 4.2 Opmerking [...]

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21 nov

ASTM D3451-2017 Test of Coating Powders and Powder Coatings

Betekenis en gebruik 4.1 This guide provides a useful summary of procedures for selecting and using test coating powders and powder coatings. Unless otherwise indicated, it is suitable for thermoplastic and thermosetting coatings. By design, this guide is not intended to address test methods or procedures developed specifically for the functional powder coatings market, i.e., those powder coatings used in pipes or reinforced steel bars (rebar). Information on current testing procedures for pipe and reinforced steel coating powders and powder [...]

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21 nov

ASTM D4101-2019 Polypropylene Injection Molding and Extrusion Materials

concept This specification covers polypropylene materials suitable for injection molding and extrusion, including pure natural color unreinforced polypropylene, unfilled and unreinforced polypropylene, calcium carbonate filled polypropylene, glass reinforced polypropylene, polypropylene copolymer and talc filled polypropylene. Polymers consist of homopolymers, copolymers and elastomers with or without impact modifiers (ethylene propylene rubber, polyisobutylene rubber and butyl rubber), colorants, stabilisatoren, lubricants or reinforcers. Each sample should be tested to determine the required physical and mechanical properties of the material. The samples of various [...]

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21 nov

ASTM D4340-2019 “Corrosion of Engine Coolant on Cast Aluminum Alloys under Heat Removal Conditions”

Betekenis en gebruik 4.1 Engine coolant is required to prevent heat transfer corrosion of aluminum cylinder heads during engine operation. Any corrosion products that form may be deposited on the internal surface of the radiator, reducing the heat transfer efficiency of the radiator. Overheating and boiling of the cooling system may then occur. 4.2 This test method provides a way to selectively screen unused engine coolants and easily distinguish those that are not suitable for use with an aluminum cylinder head [...]

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21 nov

ASTM D4364-2022 Standard Practice for Outdoor Accelerated Aging Tests on Plastics Using Concentrated Natural Light

Betekenis en gebruik 4.1 This practice involves concentrating sunlight through a system of flat mirrors arranged to simulate a parabolic trough focused on an air-cooled target plate on which the specimen is mounted. Tafel 1 describes the exposure cycles with and without water spray commonly used for this method. Other exposure cycles not listed in Table 1 May be used with the consent of the interested party. (EEN) This is the period specified in Procedure C of practice D4141/D4141M. 4.1.1 Accelerated outdoor [...]

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20 nov

ASTM D4434-2021 Polyvinylchloride dakplaat

concept The specification covers flexible fiber or fabric-reinforced panels made of polyvinyl chloride resin as the main polymer for single-layer roof membranes exposed to weather. The table should contain. Design criteria for on-site roof systems, such as fire resistance, material compatibility, wind lift resistance, in-situ shrinkage, enz., are beyond the scope of this specification. The sheet shall be tested and shall meet the corresponding physical requirements as follows: total thickness and thin turmeric thickness; Tensile strength at fracture; Breaking strength; [...]

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20 nov

ASTM D4459-2021 “Blootstellingstest voor xenonlampen voor kunststoffen binnenshuis”

Betekenis en gebruik 4.1 This practice is intended to simulate the effects of exposure to solar radiation through glass. This practice uses xenon arc devices fitted with window glass filters for exposure and is operated in accordance with practices G151 and G155. Opmerking 2: Practice D4674 describes exposure in equipment that uses a combination of fluorescent “cold white” and ultraviolet (UV) lamps to simulate the effects of exposure to filtered daylight from indoor fluorescent lamps and window glass. 4.2 Warning – Results [...]

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