jarrodccs (9 December 2013). "The Value of Ring-Around-the-Rosie". The Children's Community School Blog . Retrieved 27 November 2023.

Improper O-ring installation can lead to assembly damage which causes leakage during the first pressure test. into account required quality, quantity, application environment, cost-effectiveness, chemical and pressure compatibility, longevity and lubrication requirements. MDC Vacuum Products-Vacuum Components, Chambers, Valves, Flanges & Fittings". Mdc-vacuum.com . Retrieved 2011-03-25. Durometer IRHD (International Rubber Hardness Degree) in accordance with ISO 48 , ASTM 1414 and 1415 Rubber materials or elastomers used in sealing applications are often described as compounds; meaning that they are a mixture of ingredients manufactured under specific conditions. A compound typically comprises a polymer, cross-link system, fillers and other ingredients used to achieve specific manufacturing-, application- or cost requirements.Simpson, J. and S. Roud (2000). A Dictionary of English Folklore. Oxford: Oxford University Press, p. 296. John Crane seals measure up to API standards: News from John Crane EAA". Processingtalk.com. 2005-12-09. Archived from the original on 2009-02-24 . Retrieved 2011-03-25.

The compression set resistance at high temperatures is inferior to standard fluorocarbons. Service temperatures are -5°C (25°F) to +204°C (+400°F). TFE/P provides improved chemical resistance to a wide spectrum of automotive fluids and additives. Opie and Opie (1985), pp. 222–223: "The following are the seven earliest reports known from in Britain... In only four of these recordings is sneezing a feature". The point becomes stronger when American versions are also taken into account.Seals should be stored away from superimposed tensile and compressive stresses or other causes of deformation. O-rings of large inside diameter shall be formed into at least three superimposed loops so as to avoid creasing or twisting. Their name, as implied, simply refers to a classic doughnut or torus shape, and they exist purely to create a better, more leak-proof seal between two other components, with the aim usually being to prevent the unwanted escape of gases or liquids. In this sense, they’re effectively a type of gasket - the main difference being that o-rings are more commonly used in very high-pressure environments, where a normal cork, paper or rubber gasket would likely be prone to failure.