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9.6.8.5.(1)
OS4
ObjectiveOS4 Resistance to Unwanted Entry
Attribution
Application
Application 1: 
Fastening of hinges for swinging wood doors, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9]:
Exceptions: 
except as stated in Sentence 9.6.8.10.(1), which applies to doors constructed to a security level of at least Grade 10 in accordance with the Annex to ASTM F 476.
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Intent
Intent 1: 
To limit the probability of using an inadequate number or length of fasteners or an inadequate fastener penetration depth, which could lead to inadequate resistance to physical attack (e.g. prying or impact forces), which could lead to unwanted entry, which could lead to harm to persons.
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