is available from a number of sources, both online and in stores.
Checking milk for antibiotic residues is typically carried out with a non-reusable litmus paper
The litmus paper
familiar from high-school chemistry class and other pH meters gauge how acidic or basic a solution is.
So this tournament is something of a litmus paper
and I believe we'll be surprised by the attitude on both sides of the Severn Bridge.
We practice making sanitation buckets and checking them with litmus paper
. Proper food storage--including rotation, labeling, and storing ready-to-eat foods above raw foods--also minimizes the chances of cross-contamination.
4 cups of water * ** vinegar * ** thermometers ** blue litmus paper
(* Teachers: See teacher's edition for details.)
Early successes with this approach include ChemSensing, a two-year-old company that has developed a sort of digital form of litmus paper
, for detecting chemicals, ready to go into production.
These chips would be a high-tech litmus paper
to signal the presence of specific molecules plus their properties and concentration.
Piero Brunello examines the functions of open-air seats in childhood, youth, adult life, and old age, while the anthropologist Franco La Cecla, who argues that benches are the litmus paper
of a country's democracy and tolerance, notes the tendency of big American and European cities to `extinguish' public benches:
To test pH, you can get a digital meter for about $50, or you can get litmus paper
or a dropper kit like the ones used for pools.
The precise PSI can be determined by comparison of the sensor film to a color calibration chart, much like Litmus paper
, or by using one of several imaging systems that SPI supplies.
THERE'S no bit of litmus paper
that turns blue for gay, yellow for straight and green for bi.