Document ybYEmo93XK2J46pnog8j2mgVX
AR226-2465
"Roger J. TSpfef <ZIPFEL@WWPS-A1.EMA1L.DUPONT.COM> on 09/11/99 02:56:00 AM
To: cc: Subject:
Roger J Zipfel/AE/DuPont tC-8ANALYTCAU18-Feb-1994)First draft C-8 sampling +
analys
Date: Fri, 18 Feb 1994 13;46;00 EOT
From: Rik Brandenburg <BRAMDERA@EUOIS2-A1.EMAIL.DUPOHT.COM> Subject: First draft C-8 sampling + analysis procedure To; Gerard Rietbroek <RIETBRG@EUOIS2-Al.EMarL.DUPOKT.COM>, Willem Hutsman
<HUISMAW@EUOIS2-A1.EMAIL.DUPOMT.COM>, "Richard W. Quarles,, Jr."
<QUBKLES@wwp3-al.email.dupont.com>, YASUSHI NISHIKAWA <MISHIKAX@wwpB-al.email.dupont.coni>, AKITO ABE
<ABEA@YOVXOO-A1.EMAIL.DUPONT.COM>, IKUKO SAWATAKI
<SAWATAI@YOVXOO-A1.EMAIL.DUPONT.COM>, Chris J Primus <PRIMUSCJ@wwps--al.email.dupont.com>, ZIPFEL@wwps--al.email.dupont.corn
Cc; YOKOYAK@YOVXOO-Al.EMAIL.DUPONT.COM
MiME-vers ion; 1.0 Content-type; MULTIPART/MIXED; BOUHDARy="Boundary_(ID_5IRvr0624ItTd4eMFHp7gQ)"
Delivery-date; Fri, 18 Feb 1994 08;33;00 EDT Posting-date; Fri, 18 Peb 1994 14:27:00 EDT
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To; see distribution list
From:R.A. Brandenburg
As promised I would come back in February with a proposal for uniform sampling and analysis procedures for C-8. The reason for this is that sofar, most C-8 results have been generated in a non-routine way. The choice of sample--taking equipment, sample preparation, and actual analytical technique was often based on individual preference. Although the analytical techniques can easily be verified by using standard solutions, this is not the case with the sample collection, concentration and preparation. Therefore special emphasis should be given to the way of sampling and preparation.
We want to be able to compare results from different sites, and -most importantly- to compare last years' results with next years'
result. This is only possible if we use the same methods all the
time.
Attached is a matrix with 4 columns. The first column lists the
various samples we may have to deal with. Column "C" indicates the
proposed sampling Collection /Concentration method. Column "P" is for the sample Preparation, and column "A" is for the Analysis.
EID081896
This is just a first shot so if you have other ideas or additions, please don't hesitate to let me know. Also I should like to know if
Parkersburg and MDF have value for this global approach, and are willing to adjust their procedures where necessary to achieve some degree of global uniformity. Please answer before April 1.
best regards,
Rik Brandenburg
Dater Tue, 25 Jan 1994 15;08;00 EDT MIME-version: 1.0
Content--type; text/plain Posting-date; Fri, 18 Fob 1994 00t00:00 BDT
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DRAFT PROCEDURE FOR C-8 SAMPLING AMD ANALYSIS
I. POSSIBLE SAMPLES
COLLECTION/ PHEPACOKCENTR. RATION
ANALYSIS METHOD
explanation of numbers, see page 2, code letter ; "c"
C-8 C-8 C-8 C-8
POWDER IMPURITIES
POWDER ASSAY SOLUTIONS FROM VEHDOR SOLUTIONS FROM RECOVERY
SYSTEMS
C3.1
P5
C3.1 C2.1 C2.1
wpt
A3 P9
PO PO
"A"
A6
A6,7 A6,7
C8 DUST IN AIR (PERSONNEL EXPOSURE SAMPLES) C8 VAPOR IM AIR (PERSONNEL EXPOSURE SAMPLES) C8 VAPOR + DUST IN STACKS,EXHAUSTS
C8 IH RIVER WATER (PPB) C8 IN GROUND WATER (PPB) C8 IN SCRUBBER EFFLUENTS C8 IN SUPERSTATE C8 IN FEP WASTE WATER C8 IN PTFE WASTE WATER C8 IN VITOH WASTE WATER C8 IH PFA WASTE WATER C8 IN WASTE WATER FROH FLUOROPOLYMERS C8 IN WATER PROM BIOTREATMENT C8 IN TEFLON DISPERSION
Cl.3
Cl.l
C1.2
C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.2
PO
A5
P4
A3
P5
A3
PO
A4
PO
A4
P5
A3
PO
Al
P2
Al
P2
Al
P2
Al
P2
Al
P2
Al
P2
Al
P3
Al
C8 IH WET TEFLON POWDER C8 IN TEFLON POWDER FINISHED PRODUC'F C8 IN WET VITON BEFORE BUSS KHEADER C8 IN VITON SHEET C8 IN FEP BEFORE TD DRYER
C3.1
P6
Al
C3.1 C3.2
P3
P ?
A3A 7
W
^
C3.3
P 2
A ?
2
C3.1
P3
Am l
^
^
00
0
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C8 IH PEP FINISHED PRODUCT cs IB wax C8 IH LANDFILL PTFE C8 IH DRYER PaPER C8 IN BIOTBEATMEMT SLUDGE
C3.1 C3.4 C3.1 C3.5 C3.6
P ?
A 2
P10 Al
P3
&1
P3
Al
P5+11 A3
II. EXPLANATION OP NUMBERS IN COLUMNS "C" ,"P" AND "A"
COLUMN "C"s POSSIBLE SAMPLING COLLECTION AND CONCEHTHATIOH METHODS
Cl.; Cl.l,
C3..2.
Cl.3.
C1.4.
GASi
On tenax In a water scrubber or impinger
on a dus-fc filter specially for air
in a plastic bag
samples
C2.
C2.1. C2.2. C2.3. C2.4,
LIQUID
Just a water sample dispersion or emulsion absorption on active carbon absorption on an ion-exchanger
C3. C3.1. C3.2. C3.3C3.4. C3.5. C3.6.
SOLID
wet or dry powders, pellets or wet Viton before buss kneader Viton sheet
wax
paper biotreatment sludge
cubes
COLUMN "P"; POSSIBLE SAMPLE PREPARATION METHODS
PO. none
PI. dissolve in water
P2. shake with water + CHC13
P3. reflux with water + CHC13
P4. desorption from tenax
P5.
esterification and extraction
P6. desorption from active carbon
P7. desorption from ion exchanger
P8. vacuum-drying of wet solids (polymer,
P9. dissolve in anhydrous acetic acid
P10.dissolve in CHC13
Pll.filter solids after extraction
paper,
sludge,
wax)
COLUMN "A"i POSSIBLE METHODS OF ANALYSIS
Al. methylene blue and spectrometry (10 ppro -- 1%)
A2. CTMAB titration (very inaccurate) A3. GC (ppm level).
EID081898
A4. CH2M HILL method (ppb level)
A5. weigh duet particles on filter
In addition; For pure C-8 or commercial solutions;
66. perchloric acid titration
67. density test.s AS. refractive index
A9. acid/base titration
EID081899