Water Quality Products, Oakton

WD-27020-66 Cole-Parmer Tuff-Tip, Semi-Dome 1" In-Line/Sub pH, Graphite, 1kOhm Spade Lug ATC by Oakton

Don't worry about bulb breakage - unique design helps protect bulbs

• Eliminate electrical noise with graphite-tipped models
• Ideal for viscous or severe applications
• Reduce contamination and clogging with uniform pore size
• Choose chemical-resistant Ryton® PPS or graphite-tipped electrodes

WD-00651-08 Traceable® pH Standard Buffer with Calibration, Yellow, pH 7; 500 mL by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 25°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 500 mL (16 fl.oz.) capacity
• Calibrate at pH 7
• Easily identify red color-coded formula

WD-00651-74 Traceable® pH Standard Buffer with Calibration, Clear, pH 10, 4 L by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 25°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies' strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 4 L (128 fl.oz.) capacity
• Calibrate at pH 10

WD-05992-16 Basic Conductivity/TDS Meter by Oakton

Replace electrodes when they break, no longer hold calibration, cannot be rehydrated, or are not compatible with your sample.

WD-35660-12 PH260 Waterproof pH and ORP Handheld Meter Kit by Oakton

Get easy-to-read and accurate readings with auto-hold, auto-stable, and real-time measurements with stability indicators. The Environmental Express® Oakton® 200 series of water quality meters features an electrode status indicator, which shows the condition of the electrode after each calibration. Easily view electrode condition, reading stability, measured parameter, and temperature in one screen. Don't worry about accuracy in fluctuating temperature—ATC ensures measurement accuracy. The simple user interface features adjustable auto shut-off time ranging from 1 to 30 minutes. Self-diagnosing meters display measurement and meter issues for fast fault finding and troubleshooting.

Easily take measurements and conveniently store meter and electrodes with built-in foldable stand on the back of the meter. Two grooves on the side of the meter serve as electrode holders, to hold up to 2 electrodes.

Choose from two series—the 250 series feature 500 data points while the 260 series features 1000 data points, a real-time clock, and USB communication.

• Rugged, waterproof, and dustproof with an IP67 rating for use in any environment
• Nonslip ergonomic design for comfortable handling
• Easily view measurements with large monochrome LCD with white LED backlighting
• Download and analyze data with USB output and phono jack printer connections
• Take it with you—500 hours of battery life
• Accurately measure pH, ORP and temperature

Includes

meter, electrode, calibration solutions, and 2 AA batteries.

WD-00653-14 Buffer Pack; 60 mL of each pH 1.68, 4.01, 7.00, 10.01, and 12.46 by Oakton

• Oakton pH Buffer Solutions have pH/temperature tables printed on the labels for accurate calibrations
• Manufactured under ISO 9000 quality guidelines and traceable to NIST standards
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days
• Store buffers away from direct sunlight.
• Color coded for quick visual reference: pH 1.68 buffer in clear, pH 4.01 buffer in red, pH 7.00 buffer in yellow, pH 10.01 buffer in blue, pH 12.46 buffer in clear

Convenient 60-mL bottles come in a pack of five - ideal for field use. Grab one when you're on the go!

Contains all "USA" pH calibration buffer values in one, convenient, pack.

To obtain a Certificate of Analysis on each item within the pack, please visit each individual items' page and enter the lot number in the space provided. For example, type part number 00654-00 into the search box at the top web page, then scroll down on the page to the CERTIFICATE OF ANALYSIS box, and enter the lot number in the space provided.

• All Oakton pH buffers are traceable to NIST standard reference materials
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• If unopened, shelf life is 2 years
• Perfecty sized for portable needs

Includes

one, 60-mL plastic bottle of each pH solution: 1.68, 4.01, 7.00, 10.01, and 12.46.

WD-35660-76 PC360 Waterproof Dual-Channel pH, ORP, Conductivity, TDS, Resistivity, and Salinity Smart Handheld Meter Kit by Oakton

Get easy-to-read and accurate readings with auto-hold, auto-stable, and real-time measurements with stability indicators. The Environmental Express® Oakton® 300 series multiparameter meters utilize smart sensor technology with sensor heads that feature a built-in digital circuit for automatic sensor recognition. Sensor information including sensor ID, calibration data, and measurement setup is stored in sensor head and viewable on the meter display when sensor is connected.

Sensor heads are easy to connect and disconnect with waterproof push-lock connector. Sensor cartridges (pH and EC) are replaceable for a cost-efficient and environmentally friendly system. Blue LED light on the sensor head functions as a reading stability indicator, flashing until the reading is stable.

Meter stores up to 10,000 data sets with date-and-time stamp for accurate and easy analysis. Quickly transfer data from meter to computer seamlessly via USB cable or wirelessly via Wi-Fi.

Easily take measurements and conveniently store meter and electrodes with built-in foldable stand on the back of the meter. Three grooves on the meter serve as electrode holders, to hold up to three electrodes simultaneously.

• Extremely versatile—the meter automatically recognizes which sensors you plug in so you can easily switch parameters whenever you want
• Select a meter with the number of channels you need (1, 2, or 3) and the sensors for the parameters you are measuring (pH, conductivity, or DO)
• Eliminate downtime with smart sensors that feature built-in calibration and measurement information
• Rugged, waterproof and dustproof housing with an IP67 rating for use in any environment
• Nonslip ergonomic design is comfortable to use and shock-proof and scratch-resistant
• Easily view measurements with large color graphic TFT-LCD, even in dim lighting or bright outdoor sunlight
• Download and analyze up to 10,0000 data points easily with micro USB
• Accurately measure pH, ORP, conductivity, TDS, resistivity, salinity, and temperature

Includes

meter, pH sensor head, pH sensor cartridge, pH buffer set, EC sensor head, EC sensor cartridge, conductivity standards set, four AA batteries, wireless SD card, and carrying case.

WD-27504-18 Cole-Parmer® Combination Ion-Selective Electrode (ISE), Iodide (I) by Oakton

Whether your application involves end point determinations in potentiometric titrations or continuous monitoring of specific ions, we can help you find the right electrode for the job. These fast and accurate electrodes do not require an external reference - they're easier to use than separate sensing and reference half-cell electrodes. All Cole-Parmer electrodes are double-junction combination ion-selective electrodes and are convenient to use in places where two electrodes won't fit. All electrodes include a 30-mL bottle of reference solution, a reference filling pipette, 1-m cable, BNC connector, and an instruction manual. Solid-state electrodes also have twelve polishing strips.

Economy Epoxy Electrodes have a durable epoxy body and are well-suited for portable field applications. Outer reference chamber is silver-free and resists contamination. These electrodes are refillable.

Laboratory Glass Electrodes are double-junction in design, with a glass body that provides high-quality measurements for your laboratory applications. Improved glass seal enhances performance and reliability. Sealed inner junctions and refillable outer junctions accommodate special reference fill solutions - ideal for low-concentration measurements. Use electrodes with a meter that has a resolution of 0.1 mV for the most accurate results. Many meters in our "pH/Ion Meters" section have 0.1 mV resolution; several also give direct readings in ppm. For monitoring ions not listed below, call our Application Specialists for more electrode application information.

• Cost-effective choices that are easy to use
• Easily fit into small spaces - no additional reference electrode is needed
• Iodide (I^-) ISE with epoxy body

WD-00651-38 Traceable® pH Standard Buffer with Calibration, Yellow, pH 7; 1000 mL by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 25°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies' strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 1000 mL (32 fl.oz.) capacity
• Calibrate at pH 7
• Easily identify yellow color-coded formula

WD-00651-30 Traceable® pH Standard Buffer with Calibration, Clear, pH 4, 1000 mL by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 25°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies' strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 1000 mL (32 fl.oz.) capacity
• Calibrate at pH 4

WD-00651-76 Traceable® pH Standard Buffer with Calibration, Red, pH 4; 4 L by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 25°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies' strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 4 L (128 fl.oz.) capacity
• Calibrate at pH 4
• Easily identify red color-coded formula

WD-35419-30 pH 550 Benchtop pH Meter Kit by Oakton

The PH 550 benchtop pH meter features a microprocessor chip which provides automatic temperature compensation, data storage, parameter setup, and Max/Min reading display. The meter offers a pH range from 0 to 14 and a three-point automatic calibration, with the ability to recognize standard buffer solutions (USA or NIST series). The advanced digital processing technology improves meter response time and measuring accuracy. A stable reading display icon appears when the measuring value is stable.

The 3-in-1 combination pH electrode measures pH and temperature simultaneously. The compact meter includes a detachable electrode holder and three bottles of pH buffer solution. It has a dustproof and spillproof rating of IP54. Connectors are protected by silicone seal caps.

Economical meter for benchtop pH measurement

• Automatically recognizes calibration solutions
• Compact design saves valuable benchtop space
• Data logging allows you to store and recall up to 50 groups of data
• IP54-rated housing is dust- and spill-proof

INCLUDES

Plastic 3-in-1 combination pH electrode, electrode holder, pH standard buffer solutions (4.00/7.00/10.01 pH, 50 mL each), and 9 VAC power adapter.

WD-35661-00 DO300 Replacement DO Sensor Cap by Oakton

For your convenience, calibration standards, sensor heads, and sensor cartridges are available for your Oakton meters.

• Suitable for use with Oakton 300 series smart meters and meter kits
• Replacement DO sensor cap for 35660-96 and -98 DO sensors

WD-00653-37 Conductivity and TDS Standard, 12,880 μS; 5 x 60 mL Bottles/Pk by Oakton

• 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

Convenient 60-mL bottles come in a pack of five - ideal for field use. Grab one when you're on the go!

• 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
• Use when readings are expected to be around 12.88 mS/cm (12,880 μS/cm)

WD-00652-53 Traceable® Conductivity and TDS Standard, Batch-Tested, 150,000 μS; 500 mL by Oakton

• 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
• Individually-tested solutions are certified by the bottle - each bottle is analyzed for the best accuracy

METHODS SUPPORTED

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).

• 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
• Use when readings are expected to be around 150,000 μS/cm

INCLUDES

temperature compensation chart, TDS conversion chart, and NIST-traceable calibration certificate with data.

WD-27003-20 Cole-Parmer® Self-cleaning pH Electrode, Ryton Housing, 10-ft Cable, BNC by Oakton

• Flat surface prevents buildups, while fluid flow cleans surface for longer life
• Use with most meters and controllers - BNC connector and ATC element work with a variety of units
• Double junction for difficult applications

WD-35635-25 Replacement Sample Test Cuvettes; 6/Pk by Oakton

Compatible with Oakton turbidity meters, ensure your meter is compatible with each accessory.

• Optimize performance of your Oakton turbidity meters
• Ideal for use with Oakton T-100 series portable turbidity meters

WD-27504-12 Cole-Parmer® Combination Ion-Selective Electrode (ISE), Cyanide (CN) by Oakton

Whether your application involves end point determinations in potentiometric titrations or continuous monitoring of specific ions, we can help you find the right electrode for the job. These fast and accurate electrodes do not require an external reference - they're easier to use than separate sensing and reference half-cell electrodes. All Cole-Parmer electrodes are double-junction combination ion-selective electrodes and are convenient to use in places where two electrodes won't fit. All electrodes include a 30-mL bottle of reference solution, a reference filling pipette, 1-m cable, BNC connector, and an instruction manual. Solid-state electrodes also have twelve polishing strips.

Economy Epoxy Electrodes have a durable epoxy body and are well-suited for portable field applications. Outer reference chamber is silver-free and resists contamination. These electrodes are refillable.

Laboratory Glass Electrodes are double-junction in design, with a glass body that provides high-quality measurements for your laboratory applications. Improved glass seal enhances performance and reliability. Sealed inner junctions and refillable outer junctions accommodate special reference fill solutions - ideal for low-concentration measurements. Use electrodes with a meter that has a resolution of 0.1 mV for the most accurate results. Many meters in our "pH/Ion Meters" section have 0.1 mV resolution; several also give direct readings in ppm. For monitoring ions not listed below, call our Application Specialists for more electrode application information.

• Cost-effective choices that are easy to use
• Easily fit into small spaces - no additional reference electrode is needed
• Cyanide (CN^-) ISE with epoxy body

WD-35805-64 Accumet pH Electrode, 12x106 mm, Epoxy Body, Single Junction, Refillable by Oakton

Oakton high-performance electrodes are available in a full range of materials, junctions, and sizes to suit your application requirements. New formulation provides additional stability and superior reproducibility.

Affordable, high-accuracy pH electrodes for every application

• The ideal 5-point calibration pH electrode
• Delivers superior reproducibility in aqueous samples

Includes

3.3-ft (1-m) cable with a BNC connector.

WD-35850-12 Buffer Capsules, pH 4; 10/Pk by Oakton

Buffer salts inside capsules require 100 mL of deionized or distilled water to produce a clear pH calibration solution accurate to ±0.02 pH (at 25°C) with traceability to NIST standards. Capsules are easier to store and transport than prepared aqueous buffer solutions. Capsules are color-coded for easy identification if mixed.

Store buffer solution in an airtight container at room temperature for three weeks. Unused capsules have a five-year shelf life. Each vial contains 10 capsules.

Fresh pH calibration solution anytime and anywhere

• Each capsule mixes with 100-mL of deionized water to create a clear, 4.00 pH solution

Includes

Ten red-colored capsules.

WD-35850-04 pH Indicator Strips, 5 to 9, 100/pk by Oakton

Convenient flip-top vials include color comparator chart. Read results immediately after exposing test area to the solution. Strips measure 2-3/4"L x 1/4"W (7 x 2 cm). Each vial contains 100 strips.

Vivid and easy-to-distinguish colors at every pH interval

WD-27001-72 Cole-Parmer® In-Line pH Probe, DJ/PVDF/100Ohm RTD/10'; Tinned/BNC by Oakton

In-line electrodes operate from 32 to 212°F (0 to 100°C) and have a chemical-resistant PVDF housing with a 1/2'' NPT(M) thread. Housing measures 4" x 15/16" diameter. Electrode extends 1" beyond housing. Maximum pressure 100 psi. Measure pH from 0 to 13.

Note: 100 Ω RTD ATC elements are platinum and conform to DIN curve 43760. ATC connector is miniature audio plug.
Connector for the 1 kΩ RTD and the 3 kΩ Balco ATC elements is a spade lug.
Connector for 100 kΩ

• Choose from single-junction or double-junction designs
• Options of BNC or stripped and tinned ends

WD-00655-46 Traceable® pH Standard Buffer with Calibration, Clear, pH 7.416; 500 mL by Oakton

Oakton pH buffers are compared against, and are traceable to, NIST Standard Reference Materials. Each bottle includes a NIST-traceable calibration report stating accuracy at 257°C to ±0.010 pH. Color-coded and colorless buffers are available in 500-mL, 1-L, or 4-L packaging sizes. Additional values and packaging sizes are available. Store at room temperature.

Certified Reference Materials (CRM) meet federal, state, and or local agencies' strictest mandates, and deliver exact calibration results for any pH meter. A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO Guide 34 (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately. NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

NIST-traceable reference materials include a calibration report from an ISO 17034 and ISO 17025 accredited laboratory

• Choose from clear or color-coded standards from common calibration points
• 500 mL (16 fl.oz.) capacity
• Calibrate at pH 7.416

WD-27502-41 Cole-Parmer® Ion-Selective Electrode (ISE), Silver/Sulfide, Double-Junction, BNC by Oakton

Whether your application involves end point determinations in potentiometric titrations or continuous monitoring of specific ions, we can help you find the right electrode for the job. These fast and accurate electrodes do not require an external reference - they're easier to use than separate sensing and reference half-cell electrodes. All Cole-Parmer electrodes are double-junction combination ion-selective electrodes and are convenient to use in places where two electrodes won't fit. All electrodes include a 30-mL bottle of reference solution, a reference filling pipette, 1-m cable, BNC connector, and an instruction manual. Solid-state electrodes also have twelve polishing strips.

Economy Epoxy Electrodes have a durable epoxy body and are well-suited for portable field applications. Outer reference chamber is silver-free and resists contamination. These electrodes are refillable.

Laboratory Glass Electrodes are double-junction in design, with a glass body that provides high-quality measurements for your laboratory applications. Improved glass seal enhances performance and reliability. Sealed inner junctions and refillable outer junctions accommodate special reference fill solutions - ideal for low-concentration measurements. Use electrodes with a meter that has a resolution of 0.1 mV for the most accurate results. Many meters in our "pH/Ion Meters" section have 0.1 mV resolution; several also give direct readings in ppm. For monitoring ions not listed below, call our Application Specialists for more electrode application information.

• Cost-effective choices that are easy to use
• Easily fit into small spaces - no additional reference electrode is needed
• Silver/Sulfide (Ag⁺/S^-2) ISE with glass body