SCQC-203

Matrix: Soil Irritant

his certified reference material (CRM) was mantrfsctured and certified by NSi Lab Solutions according to quality procedures meeting our accreditation requirements of ISO 17034:2016 and ISO/IEC 17025:2017. Our certificates and scopes of accreditation may be viewed at www.anab.org.

Packaaina. Storage, Instructions For Use

This CRM is packaged in a sealed container and must be stored at 2°C to 8°C. To use this CRM, allow it to reach room tempe顾jre. Complete the anal戏is according to your normal procedures. Report results in units of mg/kg based on a 30 g sample size. No dry weight correction is needed.

Certified concentration is bas^d upon the gravimetric/volumetric true value when prepared acxording to instructions.
Acceptance limits are based upon USEPA solid and chemical Interiaboratory studies.
Traceability Information

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

Method: This CRM was verified Volumetrically/Gravimetrically

Balance: All analytical 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 balances are checked daily by an in-house standard operating procedure. The weights used for this daily verification are calibrated annually by an ISO 17025 accredited calibration laboraton/ and are certified traceable to NIST, Certificate of Calibratior and Traceability available upon request

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

Glassware: All glassware 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 ISO 17025 accredited calibration laboratory.

注：证书信息仅供参考，以产品附带证书为准。