Analytical Reference Materials Certified BTEX in Unleaded Gas Composite Catalog # 30237 Lot # A081743 110 Benner Circle Bellefonte, PA 16823-8812 (814) 353-1300 FOR LABORATORY USE ONLY. READ MSDS PRIOR TO USE. RAW MATERIAL TEST INFORMATION AVAILABLE UPON REQUEST MANUFACTURED UNDER RESTEK'S ISO 9001 REGISTERED QUALITY SYSTEM Page 1 of 5
110 Benner Circle Bellefonte, PA 16823-8812 Tel: (800)356-1688 Fax: (814)353-1309 www.restek.com Certificate of Analysis FOR LABORATORY USE ONLY-READ MSDS PRIOR TO USE. Catalog No. : 30237 Lot No.: A081743 Description : Certified BTEX in Unleaded Gas Composite VOA Mix, UST Method, Cert.BTEX in unleaded gas, 5,500µg/ml, P&T MeOH, 1ml/ampule Container Size : 5 2 ml Pkg Amt: 5 > 1 ml Expiration Date : June 2018 Storage: 0 C or colder Elution Order Compound CAS # Percent Purity 2 Grav. Conc. (weight/volume) 3 Grav.Uncert. (95% C.L.; K=2) 1 Unleaded Gasoline Composite (certified) 8006-61-9 ----% 5,500.0 ug/ml +/- 32.2 ug/ml 4 Solvent: P&T Methanol 67-56-1 99% Column: 60m x.25mm x 1.4um Rtx-502.2 (cat.#10916) Carrier Gas: helium-constant pressure 30 psi Temp. Program: 40 C (hold 2 min.) to 240 C @ 8 C/min. (hold 5 min.) Inj. Temp: 200 C Det. Temp: 250 C Det. Type: MSD Page 2 of 5
Date Passed: 18-May-2011 Balance: 1128353505 1 Expiration date of the unopened ampule stored at the recommended storage condition is the last day of the month listed. 2A Purity and chemical identity are determined by one or more of the following techniques: GC/FID, HPLC, GC/ECD, GC/MS. Purity value is rounded to the nearest whole number. See data pack or contact Restek for further details. 2B Compounds with a listed purity of less than 99% have been weight corrected to compensate for impurities. 2C The following types of compounds will have a listed purity of less than 99%: Aldehyde/Ketone-DNPH compounds, Bromides, Chlorides, HCL salts, HBR salts, sulfates, hydrates, and other compounds as necessary. The listed purity is a correction factor that is equivalent to the percentage of parent compound in the molecule. This correction factor is used to calculate the amount of compound necessary to achieve the desired concentration of the parent compound in solution. The concentration listed on the certificate is the concentration of the parent compound in the solution. 2D Purity of isomeric compounds is reported as the sum of the isomers. Value is rounded to the nearest whole number after summation. 3 Based upon gravimetric preparation with balance calibration verified using NIST traceable weights (seven mass levels) and/or class A glassware used for dilutions. 4 Uncertainties determined using data for balances and glassware from measurement systems analysis methodology, raw material purity, and, when significant, equipment tolerances or calibration results. 5A Containers are overfilled to ensure the packaged amount, as a minimum. 5B Restek supplies deactivated vials along with most standards packed in 2 ml ampules, for the handling and storage of standards. Due to space constraints, Restek does not supply vials for larger volume ampules. Samples should be transferred into deactivated vials for handling and storage. Restek sells DMDCS for the purpose of glassware deactivation as catalog number 31840, which includes complete instructions. Restek will also deactivate larger volume vials from our inventory, as a custom ordered item. Contact your Restek sales or customer service representative for details. Manufactured under Restek's ISO 9001:2008 Registered Quality System Certificate #FM 80397 Page 3 of 5
Chemical Standard Batch Sheet Lot #: A081743 Catalog #: 30237 Target: 5500 ug/ml Description: Certified BTEX in Unleaded Gas Composite Solvent: P&T Methanol Solvent Lot: 100537 Final Volume: 250 ml Made by: Michael Maye Date: 5/12/2011 6:27:14AM Tested by: John Lidgett Pass Date: 5/18/2011 11:52:14AM By: John Lidgett Date: 5/18/2011 11:52:17AM Packaged by: Joe Conway / Mary Ellen Wood Date: 5/12/2011 11:17:42AM No. Units: 164 Pkg Size: Balance Used: ARMAMPPC1 XP205 Serial #: 1128353505 1 ml Compound Unleaded Gasoline Composite (certified) 8006-61-9 CAS Storage Target Location Lot # Purity Conc(ug/mL) Target Actual Calc Conc(ug/mL) VLF-017 A061563 NA 5,500.00 1,375.00 mg 1,375.00 mg 5,500.0 Page 4 of 5
QA REPORT: Certified BTEX in Unleaded Gas Composite (Cat. # 30237) Concentration A081743 COMPONENT Concentration Concentration Concentration AVG STD DEV % uncertainity +/- ppm methyl-t-butyl ether 143 147 145 145 2.14 6.26 hexane 124 122 123 123 1.14 3.31 benzene 68 69 70 69 0.65 1.91 toluene 530 530 531 531 0.67 1.94 ethyl benzene 130 130 131 131 0.71 2.08 m-xylene & p-xylene 433 434 441 436 4.44 12.96 o-xylene 190 192 189 190 1.94 5.66 isopropylbenzene 11 11 11 11 0.06 0.19 Naphthalene 2 11 11 8 5.25 15.33 Page 5 of 5