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LA Testing Order:332320040
Customer ID:CTEH99
Customer PO:
Project ID:
Attention:Lab Results Phone:(501) 801-8500
CTEH Center for Toxicology & Env. Health Fax:(501) 614-2835
5120 North Shore Drive Received Date:11/18/2023 11:16 AM
North Little Rock, AR 72118 Analysis Date:11/18/2023
Collected Date:11/16/2023 - 11/17/2023
Project:PROJ-032229
Test Report: Fiber Count by Phase Contrast Microscopy (PCM), NIOSH 7400 Method - A Rules,
Revision 3, Issue 3, 6/15/2019
Sample Location Sample Date Volume (L)Fibers Fields
LOD
(fib/cc)Fibers/mm²Fibers/cc Notes
TUCA1116AS001C 11/16/2023 641.6 <5.5 100 0.0042 <7.01 <0.0042
332320040-0001
TUCA1116AS002C 11/16/2023 962.6 <5.5 100 0.0028 <7.01 <0.0028
332320040-0002
TUCA1116AS003C 11/16/2023 962.76 <5.5 100 0.0028 <7.01 <0.0028
332320040-0003
TUCA1116AS004C 11/16/2023 954.4 <5.5 100 0.0028 <7.01 <0.0028
332320040-0004
TUCA1116AS005C 11/16/2023 950.9 <5.5 100 0.0028 <7.01 <0.0028
332320040-0005
TUCA1116AS006C 11/16/2023 955.8 <5.5 100 0.0028 <7.01 <0.0028
332320040-0006
TUCA1116AS007C 11/17/2023 956.6 <5.5 100 0.0028 <7.01 <0.0028
332320040-0007
TUCA1116AS008C 11/17/2023 958.9 <5.5 100 0.0028 <7.01 <0.0028
332320040-0008
TUCA1116AS009C 11/17/2023 762 <5.5 100 0.0035 <7.01 <0.0035
332320040-0009
TUCA1116AS010C 11/17/2023 956.1 <5.5 100 0.0028 <7.01 <0.0028
332320040-0010
TUCA1116ASFB001C 11/16/2023 <5.5 100 <7.01 Field Blank
332320040-0011
The results reported have been blank corrected as applicable.
Michael Chapman, Laboratory Manager
or other Approved Signatory
Analyst(s):
Mindy Le PCM 11
LA Testing maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except
in full, without written approval by LA Testing. LA Testing bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received. Results are generated from the
field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. Limit of
detection is 7 fibers/mm². Fiber counts outside the recommended fiber density range of the method (100-1300 f/mm²) have greater than optimal variability and are probably biased. Field blank results, when available, are
used to blank correct results. NIOSH 7400 requires field blanks be submitted at a rate of 10%, with a minimum of 2 per set. Measurement of uncertainty available upon request. The results in this report meet all
requirements of the NELAC standards unless otherwise noted. Intra-laboratory Sr values: 5-20 fibers = 0.28, 21-50 fibers = 0.25, 51-100 fibers = 0.2. Inter-laboratory Sr values (Average of EMSL round robin data) = 0.35.
Samples analyzed by LA Testing Huntington Beach, CA AIHA LAP, LLC-IHLAP Accredited #101650
Initial report from: 11/18/2023 03:18 PM
Printed: 11/18/2023 03:18 PM ASB_PCM_NoSig_0003_0001 Page 1 of 1