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The Pensky–Martens closed-cup flash-point test is a test for the determination of the flash point of flammable liquids. It is standardized as ASTM D93, ...
Closed cup testers normally give lower values for the flash point than open cup (typically 5–10 °C or 9–18 °F lower) and are a better approximation to the temperature at which the vapour pressure reaches the lower flammable limit. In addition to the Penskey-Martens flash point testers, other non-equilibrial testers include TAG and Abel ...
A flammable liquid is a liquid having a flash point of not more than 60 °C (140 °F), or any material in a liquid phase with a flash point at or above 37.8 °C (100 °F) that is intentionally heated and offered for transportation or transported at or above its flash point in a bulk packaging. The following exceptions apply:
Closed cup testers normally give lower values for the flash point than open cup (typically 5–10 °C (41–50 °F)) In this context, the temperature is being compared (a temperature difference) rather than converted (to a thermometric temperature), and as such "5–10 °C" equals "9–18 °F", rather than the stated value of "41–50 °F".
The Cleveland open-cup method is one of three main methods in chemistry for determining the flash point of a petroleum product using a Cleveland open-cup apparatus, also known as a Cleveland open-cup tester. [1] First, the test cup of the apparatus (usually brass) is filled to a certain level with a portion of the product.
Flash point: −43 °C (−45 °F; 230 K) ... closed cup [3] [6] Autoignition temperature. 494 to 519 °C (921 to 966 °F; 767 to ... At this point removal from the ...
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