the finished foam product the measurements for inventive polyether foams were as follows the colored polyether foams from examples 10 amp 11 above were analyzed for extraction levels using the following method the extraction test involved cutting 1 gram of the cured foam from the center of the sample and post curing the cut foam for another 20 minutes at 160 u00b0 c in a glass jar after cooling to room temperature 75 grams of methanol were then added to the glass jar that was then capped for 1 hour the foam was then removed and the extract liquor was analyzed under beckman du 650 uv vis spectrophotometer for the maximum absorption an absorbance of less than 0 1 is considered acceptable for the polyether foams of examples 12 made with 2 php of inventive blue from example 2 and 13 made with 4 php of inventive blue from example 3 the absorptions were measured to be 0 0329 and 0 0613 respectively and being well below the extraction level of 0 1 were therefore considered to be acceptable thus the inventive blue colorants pass foam extraction tests e high tdi index stability of the inventive blue colorants in flexible polyurethane foams the accelerated high tdi stability performance test for the inventive blue colorants was conducted according to the following method and compared with the performance of commercial product reactint blue 17ab from milliken chemical two standard 1 5 lb ft3 density polyether foams containing 2 g of inventive blue colorant from example 3 or reactint u00ae blue x17ab respectively were prepared according to the procedure described in examples a and b above using 49 ml of tdi immediately after the.