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. 2018 May 24;46(11):1254–1261. doi: 10.1016/j.ajic.2018.04.223

Table 5.

Skin irritation testing: erythema and edema irritation scores of individual rabbits after 4-hour substance exposure

Test substance Animal no. Primary Irritation Index (PII) score (erythema/edema)*
Final PII
1 hour
24 hours
48 hours
72 hours
Test site 1 Test site 2 Test site 1 Test site 2 Test site 1 Test site 2 Test site 1 Test site 2
0.5% sodium hypochlorite 60135 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
60136 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0
60137 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
0.5% sodium hypochlorite + color additive 60073 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
60074 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0
60075 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
0.5% calcium hypochlorite 60615 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
60616 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.1
60617 0/0 0/0 0/0 0/0 0/0 0/0 2/0 0/0
0.5% calcium hypochlorite + color additive 60612 1/0 1/0 1/0 1/0 1/0 1/0 0/0 0/0
60613 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.2
60614 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
0.5% NaDCC 60702 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
60704 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0
60706 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
0.5% NaDCC +  color additive 60696 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
60698 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0.0
60700 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0

NaDCC = sodium dichloroisocyanurate.

*

All readings were taken after the dressing removal.

1-hour scores are not included in determining PII.

PII = sum of (erythema + edema scores) / (2 test sites x 3 observation points) for each animal / 3 animals.