The Physical Science Technician series has an Individual Occupational Requirement. All applicants must meet this requirement in order to be considered. You must meet the Individual Occupational Requirements and the Specialized Experience as described below to qualify for the Physical Scientist position. INDIVIDUAL OCCUPATIONAL REQUIREMENT: Work in the fields of astronomy, physics, geophysics, chemistry, hydrology, health physics, engineering, electronics, geology, oceanography, and metallurgy. Experience as a laboratory mechanic or in a trade or craft may be credited as general or specialized experience when the work was performed in close association with physical scientists or other technical personnel and provided intensive knowledge of appropriate scientific principles, methods, techniques, and precedents. Please review the additional information about the Individual Occupational Requirement which can be found here: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/1300/physical-science-technician-series-1311/ In addition to meeting the Individual Occupational Requirement (IOR), applicants must meet the following specialized experience. Specialized Experience: Specialized Experience is experience that has equipped the applicant with the knowledge, skills, and abilities to successfully perform the duties of the position, and that is typically in or related to the work of the position to be filled. For the GS-07: Applicants must have at least 52 weeks of Specialized Experience equivalent to the GS-06 or higher, that equipped the applicant with the particular knowledge, skills, and abilities to perform successfully the duties of the position. For this position, examples of specialized experience include: Performing general upkeep and housekeeping of a laboratory Assisting in the preparation of a variety of industrial hygiene samples Maintaining stock supplies for sampling and/or analytical laboratory functions OR 1 full year of graduate education directly related to Physical Science. For the GS-08: Applicants must have at least 52 weeks of Specialized Experience equivalent to the GS-07 or higher, that equipped the applicant with the particular knowledge, skills, and abilities to perform successfully the duties of the position. For this position, examples of specialized experience include: Receiving chemicals and putting into appropriate storage locations according to laboratory standard operating procedures. Assisting in testing compliance samples in safety and Industrial Hygiene inspections Assisting in preparing industrial hygiene samples for quantitative analysis (Ex: Open sorbent tubes, open filter cassettes, dry, crush, mix, or filter) OR 1 and a half full years of graduate education directly related to Physical Science.