ASTM D4169
Schedules B & C – Warehouse and Vehicle
Stacking
Review from Past Meeting
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This is what we talked about at the last
meeting
Recommended Changes and
Review
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Remove/Replace 11.2 – Test Levels
Average Shipping Density Factor
Recommended Change 1
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Remove/Replace 11.2
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Test Level Factors
Rational
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Why should internal packaging support affect
the test level?
No references to these numbers could be
found.
Safety Factors should be based on external
conditions.
11.1 makes statements that the “required
loading” must consider environmental effects,
but does nothing to account for them.
Recommended Review
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Review Average Shipping Density Factor
Is 10 pounds per cubic foot still applicable for
loose-load/LTL environments?
12 pounds per cubic foot is used for single
parcel environments (ASTM D7386).
Remove note referencing single package
delivery environment in 11.4.
Recommended Review
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Review formula formatting.
Confirm accuracy of Note 3 regarding reducing
the trailer height for packages in an LTL
environment less than 30 pounds and 2 cubic
feet to 54”.
Moving Forward
Safety Factors
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Which One’s to Consider
Packaging/Product Internal Support
¤ Humidity
¤ Overhang
¤ Pallet Pattern
¤ Previous Handling
¤ Stretch Wrapping
¤ Storage Time
¤ Others???
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Safety Factor Examples
Storage Time
Compression Loss
10 Days
37%
30 Days
40%
60 Days
43%
90 Days
48%
180 Days
50%
Safety Factor Examples
Relative Humidity
Compression Loss
50%
20%
75%
35%
85%
50%
90%
60%
Safety Factor Examples
Stacking Pattern
Compression Loss
Column - Misaligned
10%
Interlocked
40%
Overhang
20% - 40% (depending on amount)
Next Steps
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Determine all environmental and handling
conditions to account for.
Determine their values.
Account for Assurance Level.
Determine the multiplier (add factors, multiply
factors, etc…)
Questions?
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Technical Contact
Patrick McDavid
¤ 806-477-6673
¤ pmcdavid@pantex.com
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