日志
低频运输规格表
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| ASTM D999 | A1 | Repetitive Shock, Vertical | Sine Dwell | 1 inch fixed displacement, frequency between 2-5 Hz. Run test @ a frequency which causes the package to "bounce', 1/16 inch off the table top. Dwell at this frequency for 1 hour. Min. V required to do this = 13.9 ips |
| B | Single Container Resonance Test | Sine Sweep & Dwell | .5G's, 3-100-3 Hz, .5-1 octave/min, dwell for 15 minutes at 4 most severe resonance points. Min. V required to do this test = 10.25 ips Dmax. = 1.087" | |
| C | Palletized loads, unitized loads, or vertical stack resonance tests | Sine Sweep & Dwell | .25 G's, 2-100-2 Hz, .5-1 octave/min, dwell for 15 minutes at 4 most severe resonance points. Min. V required to do this test = 7.68 ips. Dmax. = 1.22" | |
| ASTM D3580 | A | Unpackaged product resonance test | Sine Sweep | .25 -.5G's, 3-100-3 Hz, .5-1 octave/min. Optional dwell @ each resonant frequency for 15 min. Min. V required to do this test = 10.25 ips Dmax. = 1.087" |
| B | Unpackaged product resonance test | Random | ||
| ASTM D4728 | A | Random Vib. Of Shipping Containers | Random | The package may be secured to the table or allowed to bounce. For heavy, dense loads it is a good idea to secure the product to prevent shaker damage Truck 1-200Hz @ .52 Grms, 3.3 Vrms, .132 Drms Rail |
| ASTM D4169 | Elememt E | Truck Rail & Air transport of stacked or unitized loads | Random | Assurance level I - more severe than II Truck 1-200Hz @ .73 Grms, 4.7 Vrms, .186 Drms Rail 1-200Hz @ .41 Grms, 2.08 Vrm |
| Assurance level II - suggested unless conditions dictate otherwise Truck 1-200Hz @ .52 Grms, 3.3 Vrms, .132 Drms Rail 1-200 | ||||
| Assurance level III - less severe than II Truck 1-200Hz @ .37 Grms, 2.35 Vrms, .093 Drms Rail 1-200Hz @ .20 Grms, 1.04 Vrms | ||||
| Element F | Loose load vibraiton | Sine Dwell | see D999 A1 | |
| ISTA | Proceedure 1 | Random Vibration | 1-200Hz @ 1.15 Grms, 3.61 Vrms, .147 Drms The package must be constrained laterally but not tied down vertically …so product density & dynamics are an issue. | |
