Pf tape analysis, (b)(4).Purpose: the purpose of this testing was to analyze tape that had been returned as a part of complaint (b)(4) for the tape adhesive being too aggressive, with one application in the pack taking "the top layer of skin off his foot." samples: sample 1: "returned tape" - tape that was returned by the customer as part of complaint (b)(4) lot number 17221.Methods: 180 degree peel test (msm protocol (b)(4)) will be conducted to determine adhesive strength.Results: adhesive strength: the peel strength for the returned tape was 63 oz/in.The maximum peel strength on the specification is 160 oz/in (nominal 140 oz/in).Conclusion: the adhesive strength was much lower than the maximum allowable adhesive strength (in fact, it was lower than both nominal and specification minimum).This may be due to environmental factors (storage conditions, shipping conditions).Without lot test data, only the coa would be available for adhesive strength reference.There was also only one sample for testing, so it is impossible to rule out anomaly.There is no reason to believe that the product adhesive was unusually aggressive, so there is no clear explanation for the cause of skin injury.Without examination or knowledge of the skin condition of the user, it is impossible to rule out a pre-existing issue (such as broken skin, blistering, or skin irritation) which may have contributed to the injury.
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