Certificate of Analysis

Dibutyl phthalate QC

Catalog Number: CQC-114

Expiration:02/28/2023 
Lot Number: 200210

Solvent: Methanol 
Manufacture Date: 02/10/2020

Hazards: Irritant,Flammable 
                                                                                    Analyte                             Gravimetric                          Acceptance 
Analyte                                  CAS                               Purity                               Concentration                          Limits 
                                                                                                                                (ug/L)                                    (ug/L) 
Dibutyl phthalate                84-74-2                           94.9%                                 40.0 ± 0.37                           24.0-56.0

This certified reference material(CRM)was manufactured and certified by NSI Lab Solutions according to quality procedures meeting our accreditation requirements of ISO17034:2015and ISO/IEC 17025:2017.Our certificates and scopes of accreditation may be viewed at www.anab.org.

Packaqing,Storage,Instructions For Use

This CRM is packaged in a flame-sealed ampule and must be stored at 2C to 8CTo use this CRM,allow it to reach room temperature.Mix it gently by inversion.Inspect for precipitate. if present sonicate for a few minutes to redissolve. Open the ampule and withdraw an aliquot appropriate for your application.

Allow the ampule to equilibrate to room temperatureFill a 1000 mL Class A flask with about 900 mLoraanic free reagent water Pipet exactly 1.0 mL of the ampule concentrate into the flaskBring the flask to volume with reagent water and mix well.This represents the sample for analysis by your normal method.Report in units of ug/L.

Certified concentration is based upon the gravimetric/volumetric true value when prepared according to instructions

Acceptance limits are based upon USEPA Drinking Water and Non-Potable Water Interlaboratory Studies

Traceability information

Analyte Source Materials: The highest purity analyte source materials are used in the manufacture of this standard.The actual Durity is referenced above.

Method: This CRM was verifiedVolumetrically/Gravimetrically

Balance:All analvtical halances are calibrated on a semiannual hasis hy an iSO 17025 accrerited calihration ahoratorv and are traceable to NISTTraceable Calibration Certificate available upon request

All balances are checked daily by an in-house standard operatina procedure.The weiahts used for this dailv verification are calibrated annuallv by an sO 17025 accredited calibration laboratorv and are certified traceable to NISTCertificate of Calibration and Traceability available upon request.

Catalog Number: CQC-114 
Lot Number: 200210 
Thermometer: All thermometers are NIST traceable through thermometers that are calibrated annually by an ISO 17025 accredited calibration laboratory.

Glassware: All alassware used in the manufacture of our standards 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 Iso17025 accredited calibration laboratory.

Intended Uses

Calibration of analytical instruments.Validation ofanalytical methods
-Preparation of working level reference materials, i.e."check standards.Detection limit studies

Homogeneity

This CRM was thoroughly mixed in production and is guaranteed homogenous,

注：证书信息仅供参考，以产品附带证书为准。