"Sample+Dippers"

These tubes are made from special tubing to give the optimum wall thickness.

Light wall test tube with beaded rim for general use.

Learn about ABO/Rh blood typing.

Teach fundamental concepts of genetic diversity and real world applications in marine biology.

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.

Preserved specimens in resin material.

For use in specimen collection, wound care, application of topical dressings, cosmetic applications/tattoos, or general purpose

Compact design for easy use.

Range: 0 to 0.20 ppm, MDL: 0.04 ppm, Method: DDPD (free and total), CHEMetrics Free and Total Chlorine test kit comes in a cardboard box and contains everything needed to perform 30 tests: Refill, Comparator, Activator Solution, 25 ml sample cup, instructions and MSDS.

Light wall rimless test tube for general use.

How Do Environmental Conditions Affect Oxygen Production And Use?

This set of tools, which includes awls, axes, knives, scrapers, cores, and hammer, was collected between 2000 and 2004 in Romania.

This complete experiment setup contains all materials and does not require lab equipment.

The Free and Total Chlorine 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. This meter measures free and total chlorine in water samples from 0.00 - 5.00 mg/L (ppm).

Designed for a variety of science laboratory uses.

Superb image quality.