"AP+PHYSICS+LAB+9+STATIC+EQUILIBRIUM."

The Total Hardness Photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user making it the perfect photometer for your water quality testing needs. The HI97735 meter measures total hardness in water samples up to 750 mg/L (ppm) CaCO₃.

Long life cycle (approximately one month). Useful for comparative population studies and for preparing salivary gland chromosome squashes.

Recommended by the Carnegie Institute
Mature Drosophila are cultured in our own labs, and are marked with the culture initiation date. Culture is shipped in our instant medium in a shatterproof vial. The pupae will usually appear within ten days of the ship date. You will also receive WARD’S Drosophila Culture Guide. Note: We can supply any of our single strains in the larger quantity for 100 students. Call our Customer Service department for details.

CAS Number: 10035-04-8
Formula: CaCl2·2H2O
Freezing Point: 175°C
Solubility: Water and Alcohol
Synonyms: Calcium Chloride, Hydrated
Shelf Life: 12 Months

High-quality large volume borosilicate beakers.

Recording tape, 1 x 300ft/roll

Masking tape with the dimension of ³/₄" × 60 yards.

108' roll ³/₄" wide, with 1" core.

Protect yourself, and clean up your lab, with one handy combination kit. Items for protection against pathogen spills, as well as equipment for safe removal and disposal of spilled materials, all of which meet OSHA, CDC, and state requirements, are provided. The kit includes a safety shield with mask, disposable apron, medical gloves, Red Z pouch, scoop with scraper, germicidal disinfectant surface wipe, biohazard waste bag, antimicrobial hand wipe, and identification tag.

One control knob allows users to raise and lower the arms effortlessly.

This human skull displays the trauma inflicted by at least one shotgun round.

Invisible tape, roll, with the dimension of ³/₄" × 36 yards.

Masking tape, 60 yard roll.

This three-finger clamp is made of powder-coated steel.

Functional and accurate, this meter is capable of testing 12 different water quality parameters using pH, EC, and optical DO sensors. Transfer data to a smart device for review or sharing with the integrated Bluetooth connection and Hanna Lab App.

[NA_SciEd] Mobile Demonstration Table

Plain apron tables are available in a variety of sizes, with several different top materials.