Certificate of Analysis

QCO-003PCB-Arochlor identification

Catalog Number: QCO-003

Expiration Date: 10/31/2023 
Lot Number: D1020

Hazard: Carcinogen Irritant,Flammable & 
Manufactured Date: 04/28/2020

Solvent: Acetone

                                                   Study                                                   Certified                                     Acceptance 
Analyte                                       Mean                                              Concentration                                      Limits 
                                                    ug/L                                                       ug/L                                               ug/L 
Aroclor 1016                               0.00                                                     0.00+/-0                                       0.00-0.00 
Aroclor 1221                               0.00                                                     0.00+/-0                                       0.00-0.00 
Aroclor1232                                0.00                                                     0.00+/-0                                       0.00-0.00 
Aroclor 1242                               0.00                                                     0.00+/-0                                       0.00-0.00 
Aroclor 1248                               0.00                                                     0.00+/-0                                       0.00-0.00    

Aroclor 1254                               0.00                                                     0.00+/-0                                       0.00-0.00 
Aroclor 1260                               1.26                                                    1.26+/-0.0117                               1.13-1.39 

This CRM was manufactured by NS1 Lab Solutions following quality procedures meeting the requirements of ISO 9001, ISO 17025 and ISO 17034.Acceptance limits are set at current industry standards.The study mean is set at the mean of an interlaboratory proficiency testing study with outlier rejection.This CRM is intended to be used to validate analytical methods,for detection limit studies, and for analyst proficiency testing.Certified concentration is the prepared concentration traceable to NIST.

Storage & Instructions For Use

Required storage is 15°C to 30°C.
Fill a 1000 mL Class Avolumetric flask with 950 mL of organic free reagent water. Allow the ampule concentrate to equilibrate to room temperature.
Open the ampule and pipet exactly 1.0mL of the concentrate into the flask with a Class A pipet Bring the flask to volume with reagent water. Stopper the flask and mix well
This represents the sample for analysis.

Catalog Number:QCO-003-2
Lot Number:D1020

Traceability Information

Analvte Source Materials: The highest purity analvte source materials are used in the manufacture of this CRM. Analyte source material purity and associated uncertainty has been analytically verified against appropriate NIST SRMs, where available.

Balance: All analvtical balances are calibrated on a semiannual basis by an ISO 17025 accredited calibration laboratory and are traceable to NIST.Traceable Calibration Certificate available upon request.
All halances are checked dailv hv an in-house standard oneratine procedure.The weiehts used for this dailv verification are ralihrated annually hv an is0 17025 accredited calibration lahoratorv and are certified traceable to NISTCertificate of Calibration and Traceability available upon request.

Thermometer: All thermometers are NIST traceable through thermometers that are calibrated annually by an SO 17025 accredited calibration laboratory.

Glassware: All glassware used in the manufacture of our samples is Class A.An in-house standard operating procedure is used to verify all glassware prior to it being placed into service.Volumetric pipetors are calibrated every four months by an ISO 17025 accredited calibration laboratory.

Homogeneity/Stability/Expiration

This CRM was thoroughly mixed in production.Batch homogeneity was established through analyses of samples chosen at random consistent with puide lSO-35:2017.The stability of this CRM is based on short-term and longterm monitoring of the certified concentrationThe expiration date is guaranteed to be valid from the manufacture date and is based on results of long-term monitoring.

注：证书信息仅供参考，以产品附带证书为准。