Lab Guy Q&A – Page 2

November 18, 2020

Image: SP Bel-Art Jerricans and Replacement Parts

Replacement Parts for Jerricans

Dear Lab Guy, Looking for replacement spout only for SP Bel-Art Polyethylene Jerrican; 10 Liters (2.5 Gallons), Screw Cap, ¾ in. I.D. Spout

November 18, 2020

Capturing Tissues/Cells for DNA & RNA Extraction

Dear Lab Guy, Is it possible to use Flowmi 40 µm strainers to capture the "objects" larger than 40 µm and then extract DNA and RNA by direct lysis in Flowmi and elution?

November 11, 2020

Image: SP Bel-Art Break-Safe Ampule Opener

Sanitizing Your Ampule Opener

Dear Lab Guy, Is the SP Bel-Art Glass Ampule Opener, F38952-0000 autoclavable? If not, would they be able to withstand soaking in 10% bleach solution? Thank you.

November 4, 2020

Image: SP Bel-Art H-B Frio-Temp Bluetooth Verification Thermometer Hygrometer Data Loggers

The Difference in the Data Loggers

Dear Lab Guy, What is the difference between these 2 thermometers: B61506-5100, B61011-5100? Thanks :)

October 28, 2020

Image: SP Bel-Art Lab Companion Pressure Gauge

Space Saver Desiccators Max. Applicable Vacuum

Dear Lab Guy, We are using an SP Bel-Art Space Saver Polycarbonate Vacuum Desiccator in the lab. I was wondering what the maximum applicable vacuum is? The manual said it hold 14 psi for 24 h but does it mean it is the max it can withstand?

October 19, 2020

Image: SP Bel-Art Aqua Clear Water Conditioner

Disposal of Aqua Clear Water Conditioner

Dear Lab Guy, Can you advise if there are any special handling requirements for disposing of water treated with the Bel-Art Aqua-Clear?

October 12, 2020

Hydrometer Documentation

Dear Lab Guy, We bought a DURAC Hydrometer back in 2018 (Serial #: 4263898 ASIN: B00NG2601C Item model number: B61801-4600) on Amazon. It states everything was calibrated to the NIST but we never received a certificate. Do you know where I can find this certificate of calibration? Do you also have calibration liquids to test if the hydrometer is calibrated for purchase? Thank you!

October 5, 2020

Image: SP Bel-Art H-B Durac 50:100 Percent Isopropyl Alchol Hydrometer

Measuring Alcohol Content in Sanitizers

Dear Lab Guy, I would like to purchase your item B61809-4100 to test the content of alcohol in hand sanitizer. I see that it is currently out of stock, can you recommend something to perform a comparative test, having a known specimen?

September 28, 2020

Image: H-B DURAC MAXIMUM REGISTERING : AUTOCLAVE BI-METAL THERMOMETER

Checking Autoclave Temperatures

Dear Lab Guy, We use total immersion mercury thermometers for checking our autoclave temperatures. Can these readings be taken right after the cycle is done, or does the thermometer need to be read at room temperature?

September 21, 2020

Fixing a Leaking Burette

Dear Lab Guy, We purchased a few of your 10 mL self-zeroing burettes. We are having a problem with leaking out of the bottom of the glass stopcock. The little rubber O-ring seems to not be doing anything or maybe wasn't designed to keep it from leaking. Do you have any recommendations on how to fix it? We run 0.1N sodium hydroxide through it.