XF 480.4-2004 General technical conditions for fire safety signs Part 4: Retroreflective fire safety signs has been changed from GA 480.4-2004 Rules for testing of fire safety signs-Part 4:Retroreflective fire safety signs.
XF 480.4-2004 General technical conditions for fire safety signs Part 4: Retroreflective fire safety signs was changed to XF 480-2023 fire safety sign.
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