Hexachlorobutadiene

Solvent： Methanol
Hazards： Irritant,Flarmmable, Carcinogen

This certified reference material (CRM) was manufactured and certified by NSl Lab Solutions according to quality procedures
meeting our accreditation recquirements of IS0 17034：.2015 and ISOIEC 17025：2017. Our certficates and scopes of accreditationmay be viewed at www.anab.org.
Packaging. Storage,Instructions For Use
This CRM is packaged in a flame-sealed ampule and must be stored at 2'C to 8°℃. To use this CRM,allow it to reach roomtemperature. Mix it gently by inversion. Inspect for precipitate. Iif present, sonicate for a few minutes to redissolve. Open theampule and withdraw an aliquot appropriate for your application.

Allow the ampule to equilibrate to roorm temperature. Fill a 1000 mL Class A flask with about 900 mL organic free reagent water.
Pipet exactly 1.0 mL of the ampule concentrate into the flask. Bring the flask to volume with reagent water and mix well. Thisrepresents 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 actualpurity is referenced above.

Method： This CRM was verified Volumetrically/Gravimetrically

Balance： All analytical balances are calibrated on a semiannual basis by an IS0 17025 accredited calibration laboratory and are
traceable to NIST. Traceable Calibration Certificate available upon request.

Al balances are checked daily by an in-house standard operating procedure. The weights used for this daily verification are
calibrated annually by an lS0 17025 accredited calibration laboratory and are certified traceable to NiST. Certificate of Calibrationand Traceability available upon request.

Thermometer： All thermometers are NIST traceable through thermometers that are calibrateod annuailly by an lSO 17025 accredited calibration laboratory.

Glassware： All glassware used in the manufacture of our standards is Class A. An in-house stanoarc operang tro bevoun S0oused to verify all glassware prior to it being placed into service. Volurmetric pipetors are calibrated every four months by an lSO 17025 accredited calibration laboratory.

lntended Uses

.Calibration of analytical instruments
-.Validation of analytical 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。