Document o9m38QznxxZoQweNBRwB5NgRD

AR226-2465 "Roger J . ZIpfel" <ZiPFEL@W W PS-A1.EMAlL.DUPONT.COW I> on 09/11/99 02:56:00 AM To: Roger J Zipfel/AE/DuPont cc: Subject: (C-8 ANALYTICAL/18-Feb-1994)First draft C-8 sampling + analys Date: Fri, 18 Feb 1994 13:46:00 EDT From: Rik Brandenburg <BRANDERA@EU0IS2-A1.EMAIL.DUPONT.COM> Subject: First draft C-8 sampling + analysis procedure To: Gerard Rietbroek <RIETBRG@EUOIS2-Al.EMAIL.DUPONT.COM>, Willem Huisman <HUISMAWSEUOIS2--A 1 .EMAIL.DUPONT.COM>, "Richard W. Quarles,, Jr." <QUARLES@wwps-al.email.dupont.com>, YASUSHI NISHIKAWA <NISHIKAY@wwps-al.email.dupont.com>, AKITO ABE <ABEA@YOVXOO-A1.EMAIL.DUPONT.COM>, IKUKO SAWATAKI <SAWATAI@Y0VXD0-A1.EMAIL.DUPONT.COM>, Chris J Primus <PRIMUSCJ@wwps--a l .email.dupont.com>, ZIPFEL@wwps-al.email.dupont.com Cc: YOKOYAK@YOVXOO-A1.EMAIL.DUPONT.COM MIME-version t 1.0 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_5IRvr06z4ItTd4eMFHp7gQ)" Delivery-date: Fri, 18 Feb 1994 08:33:00 EDT Posting-date: Fri, 18 Feb 1994 14:27:00 EDT Importance: normal Al-type: MAIL Tot see distribution list FromtR.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. RJZ013779 EXD081896 > > 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 Date: Tue, 25 Jan 1994 15:08:00 EDT MIME-version: 1.0 Content-type: text/plain Posting--date: Fri, 18 Feb 1994 00:00:00 EDT Importance: normal Al-type: DOCUMENT DRAFT PROCEDURE FOR C-8 SAMPLING AND ANALYSIS I. POSSIBLE SAMPLES COLLECTION/ PREPA- ANALYSIS CONCENTR. RATION METHOD explanation of numbers, see page 2, code letter "Cw npw "A" C-8 POWDER IMPURITIES C-8 POWDER ASSAY C-8 SOLUTIONS FROM VENDOR C-8 SOLUTIONS FROM RECOVERY SYSTEMS C3.1 P5 C3.1 C2.1 C2.1 A3 P9 PO PO A6 A6,7 A6,7 C8 DUST IN AIR (PERSONNEL EXPOSURE SAMPLES) C8 VAPOR IN A IR (PERSONNEL EXPOSURE SAMPLES) C8 VAPOR + DUST IN STACKS,EXHAUSTS Cl. 3 Cl.l Cl.2 PO A5 P4 A3 P5 A3 C8 IN RIVER WATER (PPB) C8 IN GROUND WATER (PPB) C8 IN SCRUBBER EFFLUENTS C8 IN SUPERNATE C8 IN FEP WASTE WATER C8 IN PTFE WASTE WATER C8 IN VITON WASTE WATER C8 IN PFA WASTE WATER C8 IN WASTE WATER FROM FLUOROPOLYMERS C8 IN WATER FROM BIOTREATMENT C8 IN TEFLON DISPERSION C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.1 C2.2 PO A4 PO A4 P5 A3 PO Al P2 Al P2 Al P2 Al P2 Al P2 Al P2 Al P3 Al C8 IN WET TEFLON POWDER C8 IN TEFLON POWDER FINISHED PRODUCT C8 IN WET VITON BEFORE BUSS KNEADER C8 IN VITON SHEET C8 IN FEP BEFORE TD DRYER C3.1 C3.1 C3.2 C3.3 C3.1 P6 P3 P? P2 P3 Al Al A? A? Al RJZ013780 EID081897 C8 IN FEP FINISHED PRODUCT C8 IN WAX C8 IN LANDFILL PTFE C8 IN DRYER PAPER C8 IN BIOTREATMENT SLUDGE C3.1 C3.4 C3.1 C3.5 C3.6 P? P10 P3 P3 P5+11 A2 Al Al Al A3 XI. EXPLANATION OP NUMBERS IN COLUMNS "C" ,"P " AND "A " COLUMN "C": POSSIBLE SAMPLING COLLECTION AND CONCENTRATION METHODS Cl.: GAS: Cl.l. On tenax Cl.2. In a water scrubber or impinger Cl.3. on a dust filter specially for air samples Cl.4. in a plastic bag C2. LIQUID C2.1. Just a water sample C2.2. dispersion or emulsion C2.3. absorption on active carbon C2.4. absorption on an ion-exchanger C 3 . SOLID C3.1. wet or dry powders, pellets or cubes C3.2. wet Viton before buss kneader C 3 .3. Viton sheet C 3 .4. wax C 3 .5. paper C3.6. biotreatment sludge 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, paper, sludge, wax) P9. dissolve in anhydrous acetic acid P10.dissolve in CHC13 Pll.filter solids after extraction COLUMN "A": POSSIBLE METHODS OF ANALYSIS Al. methylene blue and spectrometry (10 ppm - 1%) A2. CTMAB titration (very inaccurate) A3. GC (ppm level). RJZ013781 EID081898 A4. CH2M HILL method (ppb level) AS * weigh dust particles on filter In addition: For pure C-8 or commercial solutions: A 6 . perchloric acid titration A7. density test.s A8. refractive index A9. acid/base titration - RJZ013782 EID081899