By law, you are entitled to see a copy of this MSDS for every product you work with or are exposed to in your working area. Note especially Section 2 where all hazardous materials must be shown, along with their TLV numbers. Note also the disposal procedures, the fire hazards, and spill or leak procedures. Knowledge of these items now could save your health or life later in an emergency.
Some manufacturers state the pH only for certain percentage solutions, after dilution.
This concentrate will have a higher pH and could be dangerous. This is a very deceptive practice. Ask for, or measure, the pH of the concentrate. While this is legal in some cases, they are still required, by law, to tell you the hazardous ingredients if you ask. When animals were then allowed to eat freely, all gained weight.