Properties:
| RelatedCategories | AdditionalStandards,AnalyticalStandards,Analytical/Chromatography,DMRQAPTs,ProficiencyTesting, |
| packaging | ampuleof2 mL |
| mfr.no. | RTC,PEI-028-3 |
| concentration | inH2O |
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
ThisPTsampleissuppliedasa2mLconcentrate.
Thesolventforthissampleiswater.
ThePTsamplehasbeenautoclavedforpreservation.
SamplePreparation
Topreparesolution,partiallyfilla1000mLvolumetricflaskwithammonia-free,reagent-gradewater(near20ºC).
OpenampulePE1153-2ML(becarefultoavoidcutsonglass)andtransfer1.0mLofconcentratetothevolumetricflask.
Fillthevolumetricflasktovolumewithreagent-gradewaterandmixwell.
Thesampleisnowreadyforimmediateanalysis.
Ifasolutionisnottobeanalyzedwithintwodaysafterpreparation,preserveasamplealiquotwith0.2mLofconcentratedsulfuricacidper100mLofsample(pH<2)andstoreat4degreesCuntiljustbeforeanalysis.AnalyzethepreservedsampleassoonaspossIBLewithinthemaximum28-dayholdingtime.
