NYC-WTC_000228537

NYC 9/11 Public Portal Document

JlEM Asbestos (air) C<)unt Sheet Client Name; NYC BOL ViiJjI! 1 le (liters): 1944 I Lab Group 7412 Filter Tvpe yiiiter Art .i: MCF 38: ! Grid <)pening Size; '■.Ji 12rl i Lab Sample 8 Client Sample #: 08 zVrea Examined:

GRID BOX: Magnification: Lu. 000 GRIDID: Accelerating V oltage: : Of.) KeV # Grid Openings: 4 Analysis Date:

xAnalysis Performed By: MARR PEYSAKHOV

GO ■ Structure Struciurs Type Length D O'Struct-"-; No F B C M >=05 p >=5(j Chrys Ampnibote : Nonaso ; AmCig;NC : _ ” " No Coord <5p “7"

3

Struct = >0.5u >5:1 Aspect Ratio Grid acceptance: V = Positive diffraction pattern properties conforming to <50% undiasoived filter, overtapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F i B 1 C i M : 'I- EOS spetdrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ---- H—i---- i---- 1— AMPHIBOLES ■ Amphibole F = Single Filler Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 Intersections) lAnthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Stmctures Delected

CITY_21MC100_002900914

NYC-WTC_000228537