Ledningsevne standarder
Regelmæssig brug af ledningsevnestandarder i fabrikker og laboratorier sikrer, at instrumenter altid er korrekt kalibreret for præcise målinger. Ved at placere sonder i opløsningen med kendt ledningsevne kan udstyrets indstillinger justeres inden testning. Vedligeholdelse af udstyret gør det muligt at estimere urenheder og ionniveauer i prøverne. I overensstemmelse med industristandarder fremstilles opløsningerne under strengt kontrollerede forhold for fuld stabilitet og pålidelighed.
Conductivity standards
Supplier: WTW
E-Set Trace calibration set, 6 bottles with 50 ml calibration and control standard each, 0,01 mol/l KCl, 1413 µS/cm at 25 °C, accuracy ± 0.5 %, traceable to PTB/NIST
Expand 4 Items
VWR® Ledningsevne standard 5.000 µS/cm
Supplier: VWR Chemicals
Directly traceable to NIST, tested and certified to ISO17025 and ISO 17034
Expand 1 Items
Conductivity standards, Supelco®
Supplier: Merck
Conductivity standard, Supelco®, 147 µmhos/cm
Expand 8 Items
Conductivity standards, at 25 °C, Supelco®
Supplier: Merck
Conductivity standard, Supelco®, 500 μ S/cm, Referencetemperatur: 25 °C
Expand 15 Items
Ledningsevnestandarder
Supplier: VWR Chemicals
KCl 0,1 mol/L, VWR®, 12,88 mS/cm, Referencetemperatur: 25 °C
Expand 8 Items
VWR®, Conductivity standard solutions
Supplier: VWR Chemicals
A complete range of certified control standards with values ranging from 1,3 to 500000 µs to meet all the requirements for electrochemical analysis.
Expand 27 Items
Conductivity standards, Certipur® Supelco®
Supplier: Merck
These conductivity sachets are convenient, easy to use and ensure accurate and reliable results both in the field or in the laboratory. The 30 ml sachets always provide a fresh solution preventing contamination by microorganisms, CO₂ or other substances. A conductivity sensor can be simply inserted into the sachet.
Expand 8 Items
VWR®, Conductivity standards, Certified Reference Materials (CRMs) for primary calibration of conductivity meters
Supplier: VWR Chemicals
Avantor offers a comprehensive range of conductivity standards as Certified Reference Materials with the primary use calibrating of conductivity meters.
Expand 24 Items
Potassium chloride standard solution
Supplier: Hach
For calibrations/accuracy checks on conductivity/salinity meters.
Expand 4 Items
Sodium Chloride Standard Solution, 491 mg/L NaCl (1000 µS/cm)
Supplier: Hach
Standard solution for standardisation and accuracy check in conductivity measurements.
Expand 1 Items
Conductivity standards, Sodium chloride
Supplier: Hach
Sodium chloride standard solutions according to OIML, traceable to NIST and Standard solution verified by Reference Materials Laboratory.
Expand 2 Items
Conductivity standards, KCL
Supplier: Hach
The potassium chloride standard solutions are used for calibrating conductivity cells.
Expand 2 Items
Conductivity standards
Supplier: Hach
The sodium chloride standard solutions are used for calibrating conductivity meters and also used for accuracy checks.
Expand 10 Items
Conductivity and TDS standards, natural water
Supplier: Hach
Natural Water Standard Solution:40% sodium sulphate/40% sodium bicarbonate/20% sodium chloride.
Expand 4 Items
Conductivity standards, Potassium chloride, IUPAC
Supplier: Hach
Potassium chloride standard solutions according to OIML, traceable to NIST and Standard solution verified by Reference Materials Laboratory.
Expand 3 Items
Ledningsevne standarder, KCl,(25 °C)
Supplier: Hach
Ledningsevne standard 1.413 µS/cm (25°C; 0,01 mol/l; KCl), 1413 µS/cm
Expand 4 Items
#: 20864.320
Supplier: VWR Chemicals
#: 83640.320
Supplier: VWR Chemicals
#: 31770.294
Supplier: VWR Chemicals
#: 1.00030.2500
Supplier: Merck
#: 83645.320
Supplier: VWR Chemicals