Field Supplies: Calibration Solutions

EQUIPCO NIST Traceable Standards

EQUIPCO calibration solutions are accurate, NIST traceable, and comparable to the instrument manufacturer's solutions in every way except for the cost.

EQUIPCO calibration solutions are identical to instrument manufacturer's standards, accurate, NIST certifiable, and priced economically. We offer our calibration solutions in both convienent 500 ml bottles and 20 L boxes.

Our pH buffers are color coded (pH 4 red, pH 7 yellow, and pH 10 blue), formulated for a long shelf life, and are resitant to bacteria or mold growth. They are accurate to within 0.01 pH at 25°C, exceeding the capabilities of all field pH meters. they are available in individual 500 ml bottles, 20 L boxes, or as a pH meter calibration kit including 2 bottles of each buffer solution.

Our conductivity buffers are available in either 1000 µS for freshwater or 58,700 µS for saltwater. They are accurate to within 1% at 25°C and can be purchased in 500 ml bottles or 20 L boxes.

We also offer standard zobell solution in a 500 ml bottle for calibrating ORP probes. An ecomonical method for creating Turbidity standards is to mix the NTU value desired using our Formazin solution. Formazin comes in 125 ml bottles and is enough to mix a large amount of turbidity solution.

Traceablity certificates can be provided on request. EQUIPCO calibration solutions work with any of the instruments we offer, cost less, and are always available to ship immediately.

MSDS Sheets
Conductivity | ORP 231 mV | pH4 | pH7 | pH10

EQUIPCO pH Calibration Solutions

  • Part Number/Description
  • Price
  • PH4-500MLEQUIPCO pH solution
    500 mL bottle, pH 4
  • $10.00 $9.50
  • PH7-500MLEQUIPCO pH solution
    500 mL bottle, pH 7
  • $10.00 $9.50
  • PH10-500MLEQUIPCO pH solution
    500 mL bottle, pH 10
  • $10.00 $9.50

EQUIPCO Conductivity Calibration Solutions

  • Part Number/Description
  • Price
  • COND-1K-500MLEQUIPCO conductivity solution
    500 mL bottle, 1000 µS
  • $16.00 $15.20
  • COND-10K-500MLEQUIPCO conductivity solution
    500 mL bottle, 10,000 µS
  • $16.00 $15.20

EQUIPCO Other Calibration Solutions

  • Part Number/Description
  • Price
  • ORP-500MLEQUIPCO ORP solution
    500 mL bottle, Zobell solution
  • $95.00 $75.00
  • FormazinEQUIPCO Formazin solution
    125 mL bottle, 4000 NTU stock suspension
  • $100.00
  • AUTOCAL-500MLEQUIPCO auto cal solution
    500 mL bottle, pH 4, 4490 µS, 0.0 NTU
  • $16.00 $15.20

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Field Supplies

Great Prices for Project Supplies

Did you know that Equipco also sells environmental field supplies?

Whether you need calibration standards, tubing, or other supplies like gloves and labels, we stock everything you need to finish the job. Our high quality field supplies, including NIST traceable calibration solutions and gases, come at significant savings over manufacturer brands.

Used Equipment

Great Discounts for Used Equipment

Did you know that Equipco also sells used equipment?

Whenever we have used equipment to sell, whether like-new equipment used only for demonstration or a former rental, well maintained and available for a great price, find what you’re looking for here and check back for updates.

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