Examples of results of the Standard Test Method for Measuring the Ignition Strength of Cigarettes (ASTM E2187) are shown. Non-filter (top) and filter (left) cigarettes "failed," having burned the full length in the test. The cigarette that extinguished before burning its full length (right) passed. The test calls for performing 40 such determinations for each cigarette and reporting the number of full-length burns. Cigarettes are positioned on the standard ASTM E2187 test substrate.