Best Lab Equipment

Here are some more information for Heated Lab:

Tips On Buying A Lab Water Purification System

Buying tips that can help you get the best system for your money.

Tip #1: Silence is golden - but make sure the system runs 24/7. Noise does not purify water! The Type I system you buy should have a pump that continuously and silently recirculates water 24 hours a day, 7 days a week. Don’t be fooled by intermittent recirculation. It could be a ploy to cover up noisy pumps that were never intended to operate continuously, or pumps that heat up the water.

Tip #2: Save time and money - go for user friendliness. Make sure the lab water purification system you buy can easily be installed, operated and maintained, like ours. Before buying lab water purification system, check for hidden panels, and complex construction and service requirements, like weekly chemical sanitization, that can complicate maintenance and your life, while costing you money and down-time.

Tip #3: Insist on a two-year warranty. Don’t settle for a one-year warranty.

Tip #4: Make sure that lab water purification system can run on ordinary tap water without costly pretreatment. That’s right, our Type I DI systems can run on ordinary tap water containing as much as 170-250 ppm of total dissolved solids without RO or other types of pretreatment.

Tip #5: Make sure when you buy lab water purification system you get a remote dispenser included in the price. Some Type I systems don’t even have or include a remote dispenser. And others have one located up so high on the wall you have to purchase a second, or “remote-remote dispenser”, to dispense water at bench top level!

Tip #6: Think Green. We all need to protect the environment! Make sure you can recycle the exhausted DI modules back to the manufacturer, like ours. Some locations in the US consider the disposal of ion exchange resin to be an ENVIRONMENTAL HAZARD.

About the Author

Specific heat capacity of a metal lab?

When doing a lab to determine specific heat of a metal, different lab teams used different quantities of lead and water, and had different initial and final temperatures. Yet, most of the calculated specific heats came out to the accepted value. Why is this?

That is because the specific heat capacity is a constant value, there should be list of specific heat capacity value in you textbook (check you index under specific heat capacity). Here are a few values from my textbook:

lead - 0.128J/g*C
water - 4.184J/g*C
iron - 0.449J/g*C

Hope this helps,
Bill

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