NYC-WTC_000204734

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOF. Volume (liters): 1920 Lab Group #: 7352 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: Grid Opening Size: 0.01124 Client Sample #: 05 ATea E2carnine^ 0,04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 Ke\' # Grid Openings: 4 Analysis Date: 4/7/02

Analysis Performed By: michael'gorycki

GO. Structure Structure Type Length D of structure N or EDS No Ambig/Nol F B C M >=05 u >=5p j Chrys Amphibole Nonasb No Coord <50 I i Elements)

^/y'

I 'T

LJZI i I

.Struct = > O5,u >5:1 .Aspect Ratio Grid acceptance:

= Positive diffraciion pattern preperties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded oroverfadpea grid squares <5% T B i C ’ M ‘ '.'= EDS spectrum conforming to laboratory holes or opaque areas 2 ______ p icentification criteria observed Chrysotile .AMPHIBOLES Amphibole F = Single F ber Amosite 3 = 3undle i<3 fibers <1 fiber diameter apart Crocidolite Ambiguous 2 = Cluster i>3 intersections! Anthophyllite Non-Asbestos Tremolite V = Matrix Non-ldentified Actinolite NSC = No Structures Detected

CITY_21MC100_003061818

NYC-WTC_000204734