- Powder flowmeter funnel is the key apparatus in such method.
- It is a flowmeter funnel featuring an orifice at bottom.
- Such orifice is not ready after drilling, the manufacturer has to calibrate it in diameter.
- The diameter is 0.10 inches, i.e. approximately 2.54 mm.

AS-300 Hall Flowmeter meets ASTM ISO and MPIF International Standards.

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