This intematlonal standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards.Guides and Remendations issued by the World Trade Organization Technieal Barriers to Trade (TBT)Committee. Designation:D4206-96(Reapproved 2018) NTEANATIONAL Standard Test Method for Sustained Burning of Liquid Mixtures Using the Small Scale Open-Cup Apparatus This standard is issued under the fixed designation D4206;the mumber immediately following the designation indicates the year of original adoption ar in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. INTRODUCTION This test method may be used in conjunction with a flash point determination.If the flash point of a mixture of flammable and nonflammable liquids or liquids of widely different flash points is below the upper limit of a flammability classification (for example 100F specified by the U.S.Department of Transportation) this test may be conducted to determine the sustained burning characteristics of the mixture. This test method is a modification of the test for bustibility now incorporated as Schedule 2 of the“Highly Flammable Liquids and Liquefied Petroleum Gases Regulation 1972"of the United Kingdom under The Factories Act 1961 which is also issued as...