$100 - $150

WD-00652-50 Traceable® Conductivity and TDS Standard, Individually-Tested, 1413 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 1413 μS/cm

INCLUDES

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

Vividia 2.0MP Handheld USB Digital Endoscope/Microscope with 12.0mm Tube Diameter by Oasis Scientific

Connect digital endoscope to your computer with USB cable included, and inspect small details right on your computer screen! With 2.0M pixels CMOS sensor, up to 250x magnification, and eight built-in LEDs for illumination, this product allows you to view images in high resolution, take standard photos, record videos, and use as a webcam. It is easy to take snapshot by hardware button or by software control, and the images can be saved, compared and printed. The endoscope comes with an adjustable aluminum alloy stand, and a set of accessories (reflector tube, multi-function tube, large focusing cap, ear tip) which can be attached to the endoscope for different inspection purposes. The endoscope is multi-functional. It can be used for inspecting hard-to-reach places such as the inside of engines, machines, tubes, pipes, etc. It is also ideal for a variety of applications including textile inspection, detailed repair, printing inspection, computer parts inspection, nature observation, reading aid, collectables examination (coins, antiques), and health (skin and ear) examination.

Product Details:

• Dimension: 12.0mm in diameter and 140mm in length
• Weight: 100g (3.4oz, including USB cable)
• Compatibility: Windows 7(32 or 64 bit)/Vista/XP; MAC 10.5 or above (note: For Mac, please use Photo Booth or Facetime to open it. No software for Mac at this time)
• Package Includes: USB Digital Endoscope (1x), CD (1x, with User s Manual and software), Reflector Tube (1x), Multi-function Tube (1x), Large Focusing Cap (1x), Ear Tip (1x), and Adjustable Aluminum Alloy Stand (1x)
• Manufacturer s Warranty: 1 year

Technical Details:

• Sensor: 2.0M pixels CMOS sensor
• Still Image Resolution: 1600X1200 pixels
• Still Image Format: BMP
• Video Resolution: 1600X1200 pixels
• Video Resolution Format: AVI
• Video Resolution Frame Rate: 20FPS (VGA)
• Focal Distance: 5mm infinity (when Focal distance is infinity, the microscope cannot magnify, but can be used as a webcam)
• Magnification: 10X-250X (adjustable)
• Illumination: 8 white LED lights built-in
• PC Interface: USB1.1/USB2.0
• USB Cable Length: 165cm
• Tube Diameter: 12.0mm (0.47 )
• Tube Length: 140mm (5.5 )

Part Number: 34L-352

Part Number: UCSCAB230

Part Number: 34L-346

WD-00652-54 Traceable® Conductivity and TDS Standard, Individually-Tested, 100,000 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 100,000 μS/cm

INCLUDES

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

Part Number: 34L-98-1%

901 Intellegent Magnetic Stirrer by Apera

The Apera Instruments 901 Intelligent Magnetic Stirrer features stirring speed save and recall function, so you will never lose the specific speed that meet your measuring needs, great for general laboratory water solution analysis. Powered by DC9V power adaptor or 4 AA batteries, IP54 waterproof and dustproof housing with transparent coping design, so you can use it in labs or bring it to the field. Speed range: 0-2300 rpm (no load). Working diameter: ø100 mm. Maximum stirring volume: 1000 ml. Dimension: ø100*46*48 mm. Comes with complete accessories: Magnetic stirring bars, batteries, power adaptor, holder, and electrode clamp. The stirrer meets ISO 9001:2008 standards and comes with a 2-year warranty. The company designs and manufactures laboratory analytical instruments like pH meters, conductivity meters, electrodes, and buffer solutions for over 25 years.

• Stirring speed can be saved and recalled, so you won't lose the exact stirring speed you need any more
• IP54 waterproof and dustproof housing with transparent coping design
• Powered by AC/DC adapter or 4 AA batteries, suitable for indoor/outdoor use
• Comes with complete accessories, including magnetic stirring bars, holder, electrode clamp, batteries, and power adaptor
• Meets ISO 9001:2008 standards and comes with a 2-year warranty

GHS1211 Corrosive Hazard Class Pictogram Label (1"), 1120/Pad by GHS Safety

Provide your employees with a quick and easy way to identify Personal Protective Equipment & Hazard Class requirements. GHS labels are manufactured on a high gloss paper stock with pressure sensitive adhesive for ease of application and longer durability. Designed to be used with you in house labeling system where color printing isn't an option.

Make clean, professional looking labels in minutes. Labels are printed in sheets and padded with a cardboard backer for ease of use. Each sheet is perforated to allow removal when completed.

Labels are sold in pads. 1" diameter labels come 1,120 labels per pad. 1/2" diameter labels come 1,820 per pad.

GHS1277LP Workplace Laser Labels, Red Border, 1up (8.5" x 14") by GHS Safety

GHS laser printer templates make it easy for you to make your own label for the new HazCom GHS requirements. These paper laser printer ready sheets come with a pre-printed red boarder and pre-cut labels. Use any desktop publishing package to quickly make your own professional looking labels.

Made from laser printable paper with permanent peel and stick backing.

If color printing is not an option, use Hazard Class and Personal Protective Equipment labels (sold separately) to complete your labels.

1 label per sheet Sold in packages of 100 sheets

802 Heating Magnetic Stirrer/Stir Plate by Apera

The Apera Instruments 802 Heating Magnetic Stirrer is designed to perform safe and reliable heated stirring with easy-to-use functions and features. Suitable for small volume sample (up to 1000ml) solution's heated stirring. The overheating protection makes sure the stirrer stops heating when the surface temperature exceeds 150°C. The ceramic heating unit heats the surface to 120°C within 5 minutes. Good insulation and long service life. It adopts the heat-resistant housing, which is made with mirror-style stainless steel, making it highly resistant to pollution and chemical erosion. The powerful heat-resistant magnetic steel prevents stir bars from bouncing, and even enables low viscosity solutions' stirring.

• Safe, Reliable & Economical choice for a small heating stirrer
• Smooth speed control (0 to 2300 RPM, Max. stirring capacity: 1000ml)
• Heating the stirring surface to 120°C (248°F) within 5 minutes at fixed power
• The overheating protection makes sure the heating stops when the surface temperature exceeds 150°C (302°F)
• Two-year warranty and CE Certified