Table IX.

A Summary of the Reflux and Soxhlet Extractables Data for Unprocessed PVC (μg/g)

Participating Laboratory	Type of Extractable	Amount measured in the extraction solvent (μg/g)
		Hexanea	IPA	IPA/water	Water, pH 2.5	Water	Water, pH 9.5
1	DEHP	56,000	67,000	10,000	2	38	40
	Sum of extractables	57,007	71,871	10,897	2	55	62
5b	DEHP	331,971	261,744	N/A	1	1	N/A
	Sum of Extractables	345,176	277,462	N/A	1	4	N/A
3	DEHP	98,325	130,537	164790c	1	1	3
	Sum of Extractables	103,646	138,556	175,995	3	4	6

^aLab 5 used hexane (described as a mixture of isomers); lab 1 and lab 3 used iso-hexane (2-methylpentane)

^bExtraction conditions: Soxhlet extraction, various times for different solvents: 23 h iso-hexane, 23 h IPA, 7 h IPA/H₂O, 23 h H₂O pH 2.5, 23 h H₂O pH 7, 23 h H₂O pH 9.5

^cSoxhlet extraction

N/A not tested