ASTM D4057 304ss Bacon Bomb Oil Sampling Unit in Tank. ASTM D4057 Compliance: Conforms to ASTM D4057, D6074, and D1265 standards for petroleum sampling. 304 Stainless Steel Material: Constructed from durable 304 stainless steel for corrosion resistance. Multi-Level Sampling: Capable of collecting samples from bottom or any intermediate tank level. Automatic Valve Closure: Inlet valve closes automatically upon withdrawal to ensure sample integrity. No-Spark Brass Option: Available in nickel-plated brass for safe use in hazardous environments. Easy Disassembly: Design allows for easy disassembly and thorough cleaning. Customizable Sizes: Other sizes available on special order beyond standard 500ml and 1000ml. OEM/ODM Services: Manufacturer offers both OEM and ODM customization services.