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Thomas Traceable Conductivity Calibration Standards

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Sixteen ounces of liquid for frequent calibration needs

  • Highest accuracy available
  • Units labeled (micromhos/millisiemens, ohms, parts per million/TDS)
  • Includes step-by-step calibration instructions and temperature chart
  • 100% compatible with all makes of equipment

Calibration standards are traceable to NIST for accuracy. To assure accuracy, units are provided with an individually serial numbered Traceable certificate from an ISO 17025 calibration laboratory accredited by A2LA. Certificate indicates traceability to standards provided by NIST.

Please note: The aforementioned A2LA accreditation belongs to the manufacturer, not Thomas Scientific.

Thomas No.

NIST/ISO 34,

ISO 17025/A2LA CERT

Thomas No.

NIST/ISO34,

ISO 17025/A2LA CERT

Individually Tested

MicroSiemens/MicromohsMegohmsTDS/PPM
1235D681235D6911.66
1235D111235D4450.23.3
1235C711235D39100.16.6
1235C721235D401000.0166
1235C731235D411,0000.001666
1235C991235D451,4130.00071933
1235C741235D4210,0000.00016,666

1235C75

1235D43100,0000.0000166,666

1222W07

1222W15150,0000.000006100,000
1222W081222W16200,0000.000005133,333

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Product Detail
Thomas No.
1235D68
Also known as: 4274
Description
Traceable® Conductivity Standard, 1 µs, NIST/17025 A2LA Cert, 16 oz Bottle
Ready to Ship
list price/quantitytotal
$0.00
Thomas No.
1235D69
Also known as: 4574
Description
Traceable® Conductivity Standard, 1 µs, NIST/17025 A2LA Cert, Individually Tested, 16 oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235D11
Also known as: 4270
Description
Traceable® Conductivity Standard, 5 µs, NIST/17025 A2LA Cert, 16 oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235D44
Also known as: 4570
Description
Traceable® Conductivity Standard, 5 µs, NIST/17025 A2LA Cert, Individually Tested, 16 oz Bottle
Ready to Ship
list price/quantitytotal
$0.00
Thomas No.
1235C71
Also known as: 4065
Description
Traceable® Conductivity Standard, 10 µs, NIST/17025 A2LA Cert, 16 oz Bottle
Ready to Ship
list price/quantitytotal
$0.00
Thomas No.
1235D39
Also known as: 4565
Description
Traceable® Conductivity Standard, 10 µs, NIST/17025 A2LA Cert, Individually Tested, 16 oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235C72
Also known as: 4066
Description
Traceable® Conductivity Standard, 100 µs, NIST/17025 A2LA Cert, 16 oz Bottle
Ready to Ship
list price/quantitytotal
$0.00
Thomas No.
1235D40
Also known as: 4566
Description
Traceable® Conductivity Standard, 100 µs, NIST/17025 A2LA Cert, Individually Tested, 16 oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235C73
Also known as: 4067
Description
Traceable® Conductivity Standard, 1,000 µs, NIST/17025 A2LA Cert, 16 oz Bottle
Ready to Ship
list price/quantitytotal
$0.00
Thomas No.
1235D41
Also known as: 4567
Description
Traceable® Conductivity Standard, 1,000 µs, NIST/17025 A2LA Cert, Individually Tested, 16 oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235D45
Also known as: 4573
Description
Traceable® Conductivity Standard, 1,413 µs, NIST/17025 A2LA Cert, Individually Tested, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235C74
Also known as: 4068
Description
Traceable® Conductivity Standard, 10,000 µs, NIST/17025 A2LA Cert, 16 Oz Bottle
Ready to Ship
list price/quantitytotal
$0.00
Thomas No.
1235D42
Also known as: 4568
Description
Traceable® Conductivity Standard, 10,000 µs, NIST/17025 A2LA Cert, Individually Tested, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235C75
Also known as: 4069
Description
Traceable® Conductivity Standard, 100,000 µs, NIST/17025 A2LA Cert, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1235D43
Also known as: 4569
Description
Traceable® Conductivity Standard, 100,000 µs, NIST/17025 A2LA Cert, Individually Tested, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1222W07
Also known as: 4161
Description
Traceable® Conductivity Standard, 150K µs, NIST/17025 A2LA Cert, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1222W15
Also known as: 4561
Description
Traceable® Conductivity Standard, 150K µs, NIST/17025 A2LA Cert, Individually Tested, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1222W08
Also known as: 4162
Description
Traceable® Conductivity Standard, 200K µs, NIST/17025 A2LA Cert, 16 Oz Bottle
list price/quantitytotal
$0.00
Thomas No.
1222W16
Also known as: 4562
Description
Traceable® Conductivity Standard, 200K µs, NIST/17025 A2LA Cert, Individually Tested, 16 Oz Bottle
list price/quantitytotal
$0.00
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