Properties:
| RelatedCategories | AdditionalStandards,AnalyticalStandards,Analytical/Chromatography,ProficiencyTesting,WaterSupply/DrinkingWaterInorganics, |
| packaging | ampuleof1×20 mL |
| mfr.no. | RTC,PEI-011 |
| concentration | inH2O |
Description:
Generaldescription
ThisproficiencytestingsampleisproducedinaccordancewithISO/IEC17043:2010.Allinformationregardingtheuseofthismaterialcanbefoundinthereportingpacketsuppliedforeachsample.
OtherNotes
Proficiencytestingsamplesarepresentedassingleblind.Novaluesforthesamplesarereleaseduntilthetestingperiodconcludes.Valuesofanalytesvarylottolot.
ProficiencyTestingSchedule(2017-2018)
DrinkingWater
WS17-1January18-March3,2017
WS17-2March29-May12,2017
WS17-3July12-August25,2017
WS17-4September27-November10,2017
WS18-1January17-March2,2018
WS18-2March28-May11,2018
WS18-3July11-August24,2018
WS18-4September26-November9,2018
Quick-TurnStudy-(non-scheduledproficiencytestthatisavailableatanytime)
PreparationNote
ThisPTsampleispackagedasa20mLconcentrate.
Thesolventforthissampleiswater.
ThePTsamplehasbeenautoclavedforpreservation.
Thesamplemustbestoredat4degreesCelsius.
Samplepreparation
Allconstituentsarepresentinsolubleform.
Partiallyfilla500-mLvolumetricflaskwithreagent-gradewater(near20ºC).
OpenampulePE1364-20ML(becarefultoavoidcutsonglass)andtransfer10.0mLofconcentratetothevolumetricflask.
Filltheflasktovolumewithreagent-gradewaterandmixwell.
Thesampleisnowreadyforimmediateanalysis.
Sealedampuleswereautoclavedtopreservethesolutionsinside.Thispreservationtreatmentisnoteffectiveaftertheampuleisopened.ThereforethesampleshouldbeanalyzedassoonaspossIBLeaftersamplepreparationfollowingthepreservationandholdingtimesasspecifiedinthemethod.
