$25 - $50

PS1001-J Potassium Sulfate, ACS, 100gm by AquaPhoenix

• CAS No. 778-80-5
• K2SO4 FW= 174.26

Specifications

• Grade: ACS
• Packaging Type: Poly
• Size: 100 gram

SA1667-P Sulfuric Acid, 6.0N, 500mL by AquaPhoenix

• Traceable to NIST
• Sulfuric Acid/UN2796

Specifications

• Concentration: 6.0N
• Packaging Type: Poly
• Size: 500 mL

SA1692-P Sulfuric Acid, 12.0N, 500mL by AquaPhoenix

• Sulfuric Acid/UN2796

Specifications

• Concentration: 12.0N
• Packaging Type: Poly
• Size: 500 mL

SH6310-Q Sodium Hydroxide, 6.0N, 1L by AquaPhoenix

• Traceable to NIST
• Sodium Hydroxide Solution/UN1824

Specifications

• Concentration: 6.0N
• Packaging Type: Poly
• Size: 1.00 L

ST2965-Q Sodium Thiosulfate, 1.0N, 1L by AquaPhoenix

• Traceable to NIST

Specifications

• Concentration: 1.0N
• Packaging Type: Poly
• Size: 1.00 L

WD-98767-77 Traceable One-Shot Buffer Solution, Red, pH 4.005; 6 x 100 mL Vials by Oakton

• Convenient, single-use vials eliminate concerns of cross-contamination; each pack contains six polyethylene vials with 100-mL of pH buffer per vial
• If unopened, shelf life is 2 years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days

Oakton® Traceable® One-Shot™ pH Buffer Solutions are supplied with NIST-traceable calibration reports stating accuracy at 25°C to ±0.010 pH, in addition to conversion values for pH/temperature - for the most accurate calibrations!

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).

Key Features

• All Oakton® Traceable® pH buffer solutions are NIST-traceable reference materials
• Supplied with calibration report from an ISO 17034 and ISO 17025 accredited laboratory
• Individually packed in foil pouch to prevent UV exposure that may degrade accuracy
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• If unopened, shelf life is 2 years
• Use to calibrate pH instruments to 4.005
• Color-coded buffer for easy identification

Includes

Individual temperature compensation chart and NIST-Traceable calibration certificate with data

1407099 DPD Free Chlorine Reagent Powder Pillows, 25 mL, pk/100 by AquaPhoenix

For free chlorine determination by the DPD method. USEPA accepted for reporting drinking water analysis using Hach Method 8021.
Ranges: LR: up to 2.00 mg/L; MR: 0.05-4.00 mg/L; HR: 0.1-10.0 mg/L.
Sample Sizes: LR: 25 mL; MR: 10 mL; HR: 5 mL.
Pack of 100 powder pillows.
Boric Acid free!

09035-09 Irreversible 5 to Point Vertical Temperature Label, 99 to 115°F/37 to 46°C; 10/Pk by Digi-Sense

Labels are made up of a series of temperature-sensitive elements sealed between heat-resistant substrates with transparent windows. Each element changes color distinctly as its rated temperature is met or exceeded. The changes to the label are irreversible, providing a temperature history of the surface being monitored. The labels will not delaminate when removed, allowing them to be attached to an inspection report to serve as a permanent record. Ideal for use in the food, automotive, molding and metal working industries. Accuracy is ±1.8°F below 212°F and ±1°F above 212°F. Shelf life: 1 year after date of purchase.

• Used as a quick inspection tool that the product is in usable condition during the shipping and receiving process
• Save time and money due to costly recalls
• Self-adhesive design

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

TDS15000 Conductivity Solution, 15,000ppm/16,630uS, 1Qt by Sensorex

TDS/Conductivity instruments and sensors must be calibrated together. For a single-point calibration, select the one solution that approximates the expected conductivity or ppm level of total salts. Mixed Salt standards are the most frequently used in the field to sample naturally occurring water sources, boiler feed water, or cooling tower water. Typical river water, well water, or lake water sample will contain a mixture of several different salts. Sensorex Mixed Salt standards simulate a "Natural" mixture of common salt compounds found in these sources. Sodium sulfate, sodium bicarbonate, and sodium chloride salts are blended to provide a representative value. There are certain applications where Single Salt Solutions are preferred. NaCl Solution is routinely used to calibrate instruments measuring Sea Water or brackish water samples. Reagent grade salt and high resistivity DI water is compounded for accurate results. KCI Single Salt Solution may be used with conductivity meters that read directly in Siemens or Ohms. KCI (potassium chloride) is established as an international calibration standard for conductivity measurement. Choose the conductivity calibration solution that is right for your application. CA Residents: Prop 65 WARNING(S)

09035-19 Irreversible 5 to Point Vertical Temperature Label, 171 to 210°F/77 to 99°C; 10/Pk by Digi-Sense

Labels are made up of a series of temperature-sensitive elements sealed between heat-resistant substrates with transparent windows. Each element changes color distinctly as its rated temperature is met or exceeded. The changes to the label are irreversible, providing a temperature history of the surface being monitored. The labels will not delaminate when removed, allowing them to be attached to an inspection report to serve as a permanent record. Ideal for use in the food, automotive, molding and metal working industries. Accuracy is ±1.8°F below 212°F and ±1°F above 212°F. Shelf life: 1 year after date of purchase.

• Used as a quick inspection tool that the product is in usable condition during the shipping and receiving process
• Save time and money due to costly recalls
• Self-adhesive design

18527-10 Thermocouple Connector, Standard, Type-J, Female Jack; 5/pk by Digi-Sense

• Glass-filled nylon construction with molded barriers to prevent short circuit
• Secure thermocouple wire into positive/negative terminals with screws
• Each connector comes in ANSI color coded material: type J-black, type K-yellow, and type T-blue

*Please note we can only ship RKI products to customers within the United States