ORALITE to ASTM D4956 Type Crosswalk
Which ASTM D4956 Type each ORALITE grade satisfies — the reference table a spec writer or municipal buyer needs, including where ORAFOL's own documents disagree with each other.
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Which ASTM Sheeting Type Does Your State Require?
There is no federal table mapping sign classes to ASTM Types. Your state decides, and states genuinely disagree — Pennsylvania alone permits five Types and lets the fabricator choose.
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ASTM D4956 Sheeting Types Explained
The specification your customer's engineer is working from. Two Types no longer exist, Type IX is not a downgrade despite the numbers, and the current list is shorter than most...
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