KOEHLER K27791 Bacon Bomb Sample Thief with Stainless Steel Body, 16oz. The Sample Thief (Bacon Bomb) obtains samples from storage tanks, tank cars and drums. When the thief strikes the bottom of the tank, a plunger assembly opens to admit the sample. The plunger closes again when the bomb is withdrawn, forming a tight seal. Samples can be taken at any depth with the use of a secondary trip line, or extension rods may be added for obtaining samples at levels of up to 18" (46cm) off the bottom. Equipped with plunger locking cam for tight closure during transport. All samplers conform to ASTM D4057 (formerly ASTM D270), D6074 or ASTM D1265 specifications. Please view SPEC CHART for sample thief diameter before ordering.