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Sigma-Aldrich/Silica in Seawater - Whole Volume - WP/PE3111-500ML/500ML
Properties:
RelatedCategories | AdditionalStandards,AnalyticalStandards,Analytical/Chromatography,ProficiencyTesting,WaterPollution/WasteWater-SeaWaterMatrix, |
packaging | pkgof1×500 mL |
mfr.no. | RTC,PEI-3243S |
concentration | inH2O |
storagetemp. | 2-8°C |
Description:
Generaldescription
ThisproficiencytestingsampleisproducedinaccordancewithISO/IEC17043:2010.Allinformationregardingtheuseofthismaterialcanbefoundinthereportingpacketsuppliedforeachsample.
OtherNotes
Proficiencytestingsamplesarepresentedassingleblind.Novaluesforthesamplesarereleaseduntilthetestingperiodconcludes.Valuesofanalytesvarylottolot.
ProficiencyTestingSchedule(2017-2018)
Wastewater
WP17-1January18-March3,2017
WP17-2March29-May12,2017
WP17-3AMay17-June30,2017
WP17-3BJuly12-August25,2017
WP17-4September27-November10,2017
WP17-5November22-January5,2018
WP18-1January17-March2,2018
WP18-2March28-May11,2018
WP18-3AMay16-June29,2018
WP18-3BJuly11-August24,2018
WP18-4September26-November9,2018
WP18-5November21-January4,2019
Quick-TurnStudy-(non-scheduledproficiencytestthatisavailableatanytime)
PreparationNote
Thissampleisprovidedina500mLHDPEbottleasawholevolumestandard.
Thesampleispreservedin0.15%(v/v)nitricacid.
Samplepreparation
Shakethebottlepriortoopening.
ItissuggestedthatyourmatrixmatchtheacidconcentrationofyourcalibrationmaterialswiththePTsample