Properties:
RelatedCategories | AdditionalStandards,AnalyticalStandards,Analytical/Chromatography,ProficiencyTesting,WaterSupply/DrinkingWaterInorganics, |
packaging | ampuleof1×20 mL |
mfr.no. | RTC,PEI-234 |
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
ThisPTsampleisasa20mLconcentrate.
Allconstituentsarepresentinsolubleform.
Thesolventforthissampleiswater.
ThePTsamplehasbeenautoclavedforpreservation.
Thesamplemustbestoredat4°C.
Samplepreparation
Partiallyfilla1000-mLvolumetricflaskwithreagent-gradewater(near20°C).
OpenampulePEI-234andtransfer10.0mLofconcentratetothevolumetricflask.
Fillthevolumetricflasktovolumewithreagent-gradewaterandmixwell.
Thesampleisnowreadyforimmediatesurfactantanalysis.
NOTE:Thispreservationtreatmentisnoteffectiveaftertheampuleisopened.Therefore,thesampleshouldbeanalyzedassoonaspossIBLeaftersamplepreparationfollowingthepreservationandholdingtimesasspecifiedinthemethod.
Safety:
RIDADR
NONHforallmodesoftransport