Cordless Anti-static Bracelet, Garbage or Junk?

Hi, Melvin asked me on Twitter if it is possible to make a bracelet that removes the static electricity from body and avoids shock Of course, there are these straps that ground the body and remove static electricity But is it possible to make a cordless one? And surely after I did a quick search, […]

pH electrode handling 5/6 – storing

♪ [music] ♪ The Perfect InLab pH Electrode Handling, 5. Electrode Storage. For short-term storage, place the electrode in a beaker with pH 7 or pH 4 buffer or electrolyte solution. For long-term storage, close the refilling hole. Fill the wetting cap with appropriate electrolyte and put it on the membrane. Make sure that the […]

pH electrode handling 2/6 – preparation

METTLER TOLEDO ♪ [music] ♪ The Perfect InLab pH Electrode Handling 2. Electrode Preparation. ♪ [music] ♪ For SteadyForce electrodes carefully remove the silicone seal with the enclosed knife. Don’t scratch the membrane! For electrodes with sleeve junction check the sleeve and tighten with approximately 1/4 rotation. Don’t tighten too much! A jammed sleeve junction […]

pH electrode handling 1/6 – unpacking and quality check

Mettler Toledo The Perfect InLab pH Electrode Handling 1. Unpack The Electrode Electrodes must be investigated for damage and proper functionality immediately after receiving. ♪ [music] ♪ Most electrodes are made of glass careful handling is required. Archive the operating instructions and quality certificate for later use. Refillable electrodes come with a reference electrolyte bottle. […]

pH electrode cleaning – 4/6

METTLER TOLEDO The Perfect InLab® pH Electrode Handling 4. Clean The Electrode Rinse the electrode with deionized water for normal cleaning after each measurement and calibration. ♪ [music] ♪ If needed, gently tab dry the membrane. If cleaning with deionized water is not effective, rinse with Ethanol or Acetone. ♪ [music] ♪ Clean the electrode […]

pH tutorial – theory, measurement, electrode maintenance

This is a brief presentation about theory sensors sensor maintenance and measurement of the ph value of a sample During this presentation a brief overview [of] Ph Theory and measurement of Ph values is given We look at the chemical [background] of ph value at the electrodes which measure ph values and how to use […]

pH electrode handling 6/6 – troubleshooting

METTLER TOLEDO The Perfect InLab® pH Electrode Handling 6. pH Trouble Shooting Make sure that neither the instrument nor the cable is faulty and the buffers are fresh. The electrode is correctly filled with electrolyte, the connectors are clean and the tip of the electrode is free of air bubbles. A contaminated diaphragm can be […]

Is America Actually Metric?

I’m here at the National Institute for Standards and Technology, and I’m about to see some of the original kilogram standards. Is that right? Patrick: You are, you are. When were these made? Well the originals were made in the 1880s. There were 40 of them that were brethren of the International prototype kilogram and […]

pH electrode handling 3/6 – measure correctly

METTLER TOLEDO ♪ [music] ♪ The Perfect InLab pH Electrode Handling 3. Measure Correctly ♪ [music] ♪ Immerse the electrode in the sample and press READ to start the measurement. ♪ [music] ♪ During the measurement, the junction must be fully immersed in the solution. ♪ [music] ♪ The electrolyte level must be higher than […]