NYC-WTC_000196926

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ( lient Name: NYC BOE \ olume (liters): IS24 6 Sil 5 Filter Type / Filter Area: M(T .5X5 mm Lab Sample #: 6 GridJApeninojMy^ 0.01 124 Client Sample #: 14 Area Examined: 0.04496 mm"

GRID BOX: Maonification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analv.sis Date: 3 2/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure structure Type Length D of SIructure N or x EDS (Nonadb No F B C M >=05 p Chrys Ampbioole j Nonasb Ambig/ND j \o Coord Elements ,1 -----------------( <5p ---------------- 1- I -4 \----- 1

1—HH—)

! 1------- r

t----- f J— f

Struct = > 0.5)1 > 5:1 Aspect Ratio d Grid acceptance: y= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% partculate coverage >60% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% [ F B C ] M ' >5u v= EDS spectrum conforming to laboratory tides or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_003044207

NYC-WTC_000196926