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Table 4–12 (Continued). Analysis of repeated insult patch test (RIPT) studies submitted by industry clients in response to 1987 and 1997 Federal Register notices on CCP and its components

Study year	Report number*	Laboratory	Test material	Response rate†	Score‡	No. of subjects with score	Classification as irritant (Y/N)§,¶	Current use of material
1990	K23–33T–3E	Keyline Research	T–5205 carbonless blue image paper, EM0571	0/204	0	—	N	Test materials in use
1990	90–2826–70	Hill Top Research, Inc.	182. Imaged CB	0/110	0	—	N	Text materials in use
			183. Unimaged CB	0/110	0	—	N
			184. Imaged CF	0/110	0	—	N
			185. Unimaged CF	0/110	0	—	N
			186. Imaged self-contained CB	0/110	0	—	N
1991	90–2846–70	Hill Top Research, Inc.	325. Thick, gray, opaque liquid	0/107	0	—	N	Test materials discontinued mid-1990s
			325AD Thick, gray, opaque liquid	0/107	0	—	N
			326A Paper	2/107	2	—	N
			326B Paper	0/107	0	—	N
1991	91–1141–70	Hill Top Research, Inc.	343a. Unimaged CF	0/117	0	—	N	Test materials discontinued mid-1990s
			343b. Imaged CF	0/117	0	—	N
			343c. Unimaged CB	0/117	0	—	N
			343d. Imaged CB	1/117	1	—	N
			322a. Unimaged SC surface	2/117	1	—	N
			322b. Imaged SC surface	0/117	0	—	N

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See footnotes at end of table.