These test methods cover sampling of creosote, creosote-coal tar solutions, creosote-petroleum solutions, and oilborne and waterborne preservatives. Note 1-See Specification D390, for Coal-Tar Creosote for the Preservative Treatment of Piles, Poles, and Timbers for Marine, Land, and Fresh Water Use, Specification D391 for Creosote-Coal Tar Solution, and Specification D1858, for Creosote-Petroleum Solution. Creosote and creosote solutions are homogeneous liquids, except for their moisture content. At atmospheric temperatures, however, part of the creosote is usually in crystalline form, and shall be heated to a temperature at which it is entirely liquid before sampling. When sampling creosote and creosote solutions, the object is to obtain a sample that will be representative of the water content, and the methods of sampling described are intended to accomplish that purpose. Recommended test methods are given for sampling a preservative in a liquid or solid state and in the several types of containers in which they are likely to be encountered. Creosote, creosote-coal tar, and creosote-petroleum solutions may be in the form of a liquid or semiliquid. Oilborne and waterborne preservatives may be in the solid state, in concentrated solutions, or in ready-to-use solutions.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.