DCC-12- Guidelines for Screening the Efficacy of Oven Cleaners: A task force was formed to develop these guidelines in January 1978 in recognition of a need determined through polling the Division membership. Inter-laboratory precision could not be determined because of unavoidable inter-laboratory differences in performing the test. The Division agreed, however, that it still would be a valuable contribution to make these guidelines available. In May 2011, the guideline was updated slightly by adding current component suppliers and removing the original inter-laboratory data table.