Sampling is the first and arguably most important step in the analytical process. Obtaining representative and reliable samples of any bulk material being analysed is of the utmost importance. This book brings together the broader principles of sampling applicable to a wide variety of situations. Prepared under the Department of Trade and Industry's Valid Analytical Measurement (VAM) Initiative, it covers solid, liquid and gas samples, with examples of some of the equipment used. General Principles of Good Sampling Practice is based on an intensive literature survey covering a wide range of materials, offers guidance on particle size reduction of solids, and looks at requirements for suitable containers and storage prior to analysis. The book gives particular emphasis to the preparation of sampling plans. Checklists ensure that coverage is comprehensive. In addition, various safety aspects are considered, appendices give definitions of sampling terminology, and some theory is addressed. General Principles of Good Sampling Practice has come as a welcome reference guide for researchers and professionals who need to access the important information on how to sample. Before, information has been scattered across the literature. Now, anyone with interests or responsibilities in sampling has at hand the aid of this thorough and reliable guide.