| Quality
Control Programs |
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| ò
Underwriters Laboratories |
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| á - Some FR chemicals are UL |
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| áááá registered components |
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| á - UL inspects both chemical plant and |
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| áááá treating plant production |
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| ò | áTimber Products Inspection |
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| á - Inspects the treating plant production |
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| ò | áFactory Mutual Corporation |
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| á - Some FR chemical manufacturers are |
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| ááá audited annually to comply with their |
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| ááá listing with Factory Mutual for a class
1 |
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| ááá roof decking material. |
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