Conductivity Standards

*Conductivity Standards
Oakton Conductivity Standards are ideal for laboratory and field analysis
  • All Oakton Conductivity and TDS Standards are traceable to NIST standard reference materials
  • Solutions help you calibrate conductivity instruments to ensure accuracy
  • Standard values given at 25°C
  • KCl, NaCl and 442 conversions printed on the bottle for ease of use (excluded on 60-mL bottle, but included in insert)
  • Temperature corrections are printed on the bottle, with certified values listed in tables and referenced to 25°C (excluded on 60-mL bottle, but included in insert)
  • Manufactured under ISO 9000 quality guidelines and traceable to NIST standards
  • If unopened, shelf life is 1 year. If opened recommended shelf life is 4 months
  • Conductivity options range from 1 µS/cm to 200,000 µS/cm
Traceable® conductivity standards are Certified Reference Materials, making one of the most accurate available
  • All Oakton® Traceable® conductivity standards are NIST-traceable reference materials
  • Supplied with a calibration report from an ISO 17034 and ISO 17025 accredited laboratory
  • These standard solutions let you calibrate conductivity instruments to ensure accuracy
  • If unopened, shelf life is one year; once opened, shelf life will vary by solution value
  • Oakton® Traceable® conductivity and TDS standards have detailed labels: KCl, NaCl, and 442 conversions, temperature corrections, and certified values referenced to 25°C-convenient!!
  • Average accuracy at 25°C is ±0.25 microsiemens for 1, 5, 10 microsiemen (µS) solutions, or ±0.25% for all other solutions. The tested uncertainty is shown on the certificate, whichever is greater
  • Conductivity options range from 1 to 200,000 µS/cm
  • Batch-tested solutions are lot certified; a few bottles from a single lot are analyzed
  • Individually-tested solutions are certified by the bottle-each bottle is analyzed for the best accuracy
Certified reference material meets test requirements for Federal, State, and local agencies, CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, and ISO. Traceable® Conductivity Standards complies with and is essential for use in these official methods: AOAC 973.40, EPA 120.1, Standard Method 2510 (APHA, AWWA, WEF), ISO 7888, DIN 38404, ASTM D1125, USGS I-1780, USP 645, and for A2LA/NVLAP accreditations/ISO 9000 certifications. Material may be used to calibrate all conductivity meters and to determine all conductivity cell constants.

A2LA ACCREDITATION ISO/IEC 17025:2005 (1750.01)
To assure accuracy an individually serial-numbered Traceable® Certificate is supplied to indicate traceability to standards provided by NIST (National Institute of Standards and Technology) and/or a National Standards Laboratory. A2LA accredited certification provides the highest achievable level of quality assurance, documentation, and accuracy. Conductivity Standards are produced in an A2LA accredited ISO/IEC 17025:2005 (1750.01) calibration laboratory. Additional certifications include ISO 31 (certificate content) and ISO 35 (statistical analysis), plus ISO 9001 (certified quality manufacturer).

Environmental Express Oakton Conductivity/TDS Standards

Item No. Description
EE0060610 Oakton Conductivity Solution, 12,880 µS, 500 ml
EE0065315 Oakton Conductivity Solution, 1500 µS, 500mL
EE0065316 Oakton Conductivity Standard Solution, 84 µS, 1 Pt
EE0065318 Oakton Conductivity Standard Solution, 1413 µS, 1 Pt
EE0065320 Oakton Conductivity Solution, 2764 µS,500mL
EE0065323 Oakton Conductivity Standard Solution, 23 µS, 1 Pt
EE0065327 Oakton Conductivity Solution, 2070 µS, 500 mL
EE0065332 Oakton Conductivity Solution, 80,000 µS, 500 ml
EE0065335 Oakton Conductivity and TDS Std, 100 µS; 5 x 60mL
EE0065336 Oakton Conductivity and TDS Std, 1413 µS; 5 x 60 mL
EE0065337 Oakton Conductivity and TDS Std, 12,880 µS; 5 x 60 mL
EE0065338 Oakton Conductivity and TDS Std, 111,900 µS; 5 x 60 mL
EE0065347 Oakton Conductivity Standard Solution, 447 µS, 1 Pt
EE0065350 Oakton Conductivity Solution, 15,000 µS, 500 ml
EE0065389 Oakton Conductivity Standard Solution, 8974 µS, 1 Pt
EE3566109 EE Oakton Con/TDS Stds Pk,84,1413µS,12.88,111.8mS 60mL

Environmental Express Oakton Traceable® Conductivity/TDS Standards - Batch Tested

Item No. Description
EE0065220 Oakton Traceable® Cond and TDS Std, 1 µS; 500 mL
EE0065222 Oakton Traceable® Cond and TDS Std, 5 µS; 500 mL
EE0065224 Oakton Traceable® Cond and TDS Std, 10 µS; 500 mL
EE0065226 Oakton Traceable® Cond and TDS Std, 100 µS; 500 mL