Summary See below for important information regarding this job. This position may be filled at grades: GS-09, GS-11, or GS-12. If filled at grades GS-09 or GS-11 the incumbent will have promotion potential to the GS-12 grade, and will perform the duties in a developmental capacity.The annual salary ranges for each grade: GS-09: $68,013 - $88,421 GS-11: $82,289 - $106,982 GS-12: $98,630 - $128,221 Responsibilities Specializing in the areas of chemical/instrumental analysis, physical testing, high performance liquid or gas chromatography/spectroscopy, and inductively coupled plasma optical emission spectroscopy/mass spectrometry. Developing, adapting, improving, and evaluating methods used to perform chemical and physical testing of routine, difficult, complex, and unusual samples. Making major adaptations and modifications of established methods and procedures for a wide variety of samples including components, textiles, leather, rubber, paper, metals, chemicals, and textile or equipage...