That would depend on what fluid system you are testing.
Blood has a normal ph around 7.41; a ph of 6.5 would be potentially lethal.
The body fights very hard to maintain a blood ph at it's required range and will sacrifice vital nutrients at the expense of the health of other systems to maintain that blood ph.
Other systems of the body fluctuate based on what you eat and when. Acidic foods will lower the ph of saliva and urine. Urine often hits a ph level of around 6.5 after sleep as the body dumps excess acids from the body.
You should not be trying to lower most body systems ph levels without consulting a doctor first.
Most systems in the body function better when in balance or slightly on the alkaline side rather than leaning towards acidic.
Eat Yogurt; it will raise your pH level up from 5.75.
No, they lower it. Coke PH is 2.5.
Add lime.
how to raise ph level from 6.2 to 7.4? Chlorine is 3.
Lime does raise the pH level of your soil; however Sulphate is the one that lowers it.
Aluminum sulfate raises the pH level of paint washwater.
use potash or bicarb to raise Ph and use acid to lower pH
by adding calcium carbonate to raise the pH level.
Add bicarb.
Because you're a doucher with a pool.
You cannot do that it's too impractical.
Baking soda will almost certainly raise the pH level in a pool.
Not that I can find