Main Differences between ISTA 2B an

Main Differences between ISTA 2B and ISTA 3BAtmospheric Conditioning:ISTA 2B requires Atmospheric Conditioning, while it’s optional in ISTA 3B. Opted not to subject the units to the ISTA 3B Atmospheric Conditioning sequence because the effects of climactic conditions on corrugated and wood are known and the properties of the corrugated and wood materials were not significantly changed in the new design. Compression: ISTA 2B requires a compression test, while ISTA 3B instead requires vibration under load, where a weight load is placed on top of the unit during vibration testing to simulate other cargo being stacked on the unit in transit. We performed a separate compression test, DOC2321963 MIC Packaging Warehouse Stacking Test Report, to verify ability to double stack in a warehouse.                Vibration:ISTA 2B uses fixed vibration, where ISTA requires random vibration. Random vibration data is derived from instrumented field data and simulates actual vibration forces and frequencies seen in transit. ISTA 2B requires 2 sequences of fixed vibration the ISTA 3B random vibration test requires a longer duration for the vibration than ISTA 2B. Shock/Drop:ISTA 3B requires more drop testing sequences in more orientations and includes horizontal impact testing. Fork Lift Handling:ISTA 3A requires multiple fork lift handling test sequences, where ISTA 2B does not include any fork lift handling testing.