Значење и сврха
5.1 This test method uses a slow heating rate to provide uniform temperature throughout the specimen. Slow heating rates are required due to low thermal conductivity of certain liquids such as paints, смоле, and related products and poor convective heat transfer in products with high viscosity. Since the sample was heated at a reduced rate, a long time interval between each determination was used to re-determine the saturation concentration of steam in the air space above the sample after each flash test.

Белешка 1: ИСО 1523 is used in the United Nations Recommendation on the Transport of Dangerous Goods and similar regulations in the International Civil Aviation Organization (ICAO) rules and the International Maritime Dangerous Goods (IMDG) Rules. Test method D3941 is similar to ISO 1523 for use in United States Department of Transportation (USDOT) regulations. The International Civil Aviation Organization and International Maritime Dangerous Goods Rules are used for the transshipment of hazardous materials to other countries through the United States.

ASTM D3941-2020 “Determination of Flash Point by Balance with Closed Cup Apparatus”

Обим
1.1 The test method consists of the determination of the flash point of a liquid in which the sample and the air/steam mixture above it are approximately in temperature equilibrium.

1.2 This test method is limited to a temperature range of 0 to 110°C (32 to 230°F).

1.3 Вредности изражене у СИ јединицама сматрају се стандардима. Вредности дате у заградама су само за референцу.

1.4 Warnings – Mercury has been designated by many regulatory agencies as a hazardous substance that may cause serious medical problems. Mercury or its vapors have been shown to be harmful to health and corrosive to materials. Be careful when handling mercury and mercury-containing products. For more information, see the applicable Product Safety Data Sheet (SDS). It is possible for local or national laws to prohibit the sale of mercury or products containing mercury, or both. Users need to determine the legality of sales in their location.

ASTM D3941-2020 “Determination of Flash Point by Balance with Closed Cup Apparatus”

1.5 This standard is used to measure and describe the reaction of materials, products or components to heat and flame under controlled conditions, but does not in itself contain all the factors required for fire hazard or fire risk assessment of materials, products or components under actual fire conditions.

1.6 Овај стандард није намењен решавању свих безбедносних питања, ако их има, повезана са његовом употребом. Одговорност корисника овог стандарда је да успостави одговарајућу безбедност, здравствене и еколошке праксе и да се утврди применљивост регулаторних ограничења пре употребе.

1.7 Овај међународни стандард је развијен у складу са међународно признатим принципима стандардизације утврђеним у Одлуци о принципима за израду међународних стандарда., Смернице и препоруке које је издао Комитет за техничке баријере у трговини Светске трговинске организације.