NYC-WTC_000228425

NYC 9/11 Public Portal Document Face Analytical Services, Inc. 1700 Elm Street, Suite 200 ^ace Analytical' Minneapolis, MN 55414 Phone: 612.S07.1700 mnv.pacelabscom Fax: 512 607 6444 TABLE 4. High Resoiution Calibration Solutions Concentration (pg/uL) Native CDDs/CDFs CS1 CS2 CS3 CS4 CS5 2,3,7,3-TCDD 0.5 2 10 40 200 2,3,7,8 TCDF 0.5 2 10 40 200 1,2,3,7,8-PeCDD 2.5 10 50 200 1000 1,2,3,7,8-PeCDF 2.5 10 50 200 1000 2,3,4,7,8-PeCDF 2.5 10 50 200 1000 1,2,3,4,7,8-HxCDD 2.5 10 50 200 1000 1,2,3,6,7,8-HxCDD 2.5 10 50 200 1000 1,2,3,7,8,9-HxCDD 2.5 10 50 200 1000 1,2,3,4,7,8-HxCDF 2.5 10 50 200 1000 1,2,3,6,7,8-HxCDF 2.5 10 50 200 1000 1,2,3,7,8,9-HxCDF 2.5 10 50 200 1000 2,3,4,6,7,8-HxCDF 2.5 10 50 200 1000 1,2,3,4,6,7,8-HpCDD 2.5 10 50 200 1000 1,2,3,4,6,7,8-HpCDF 2.5 10 50 200 1000 1,2,3,4,7,8,9-HpCDF 2.5 10 50 200 1000 OCDD 5.0 20 100 400 2000 OCDF 5.0 20 100 400 2000

internal Standards 2,3,7,8-TCDD-’’C,2 100 100 100 100 100 2,3,7,8-TCDF-’^C,2 100 100 100 100 100 1,2,3,7,8-PeCDD-’’Ci2 100 100 100 100 100 1,2,3,7,8-PeCDF-’3C,2 100 100 100 100 100 2,3,4,7,8-PeCDF-’^Ci2 100 100 100 100 100 1,2,3,4,7,8-HxCDD-’’C,2 100 100 100 100 100 1,2,3,6,7,8-H xCDD-^’C,2 100 100 100 100 100 1,2,3,4,7,8-HxCDF-^3Ci2 100 100 100 100 100 1,2,3,6,7,8-HxCDF-’^Ci2 100 100 100 100 100 1,2,3,7,8,9-HxCDF-’3C,2 100 100 100 100 100 2,3,4,6,7,8-HxCDF-’"C,2 100 100 100 100 100 1,2,3,4,6,7,8-HpCDD-’3Ci2 100 100 100 100 100 1,2,3,4,6,7,8-HpCDF-^’Ci2 100 100 100 100 100 1,2,3,4,7,8,9-HpCDF-’"Ci2 100 100 100 100 100 OCDD-’"Ci2 200 200 200 200 200

Recovery Standards 1,2,3,4-TCDD- ’^C,2 100 100 100 100 100 1,2,3,7,8,9-HxCDD-’’C,2 100 100 100 100 100

Enrichment Efficiency Standard 2,3,7,8-TCDD-^^Cl4 0.5 2 10 40 200

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.

/nebc* CITY_21MC100_002900516

NYC-WTC_000228437