The markings goes to 125ml & 250ml, not 120 & 240ml. Dual unit measuring cups have metric units on one side. The Canadian label has instructions in metric units that are of little use. Pressing Calculate gets a result of 18.1ml which you can round up to 20ml or 4tsp. To make up a quart diluted to 1000ppm, just enter the following steps in the Dilution Calculator: If all you need is a spray bottle to sanitize faucets, handrails or countertops, a gallon is too much. Since many state regulations call for only 500, 800, 1000 or 2000ppm, you end up using far more bleach than you need. If you work this out in the Dilution Calculator, you get about 2500ppm. The label instructions for disinfection call for 3/4 cup in 1 gallon. YouвЂ™ll see 207ppm appear in the box for step (2). Clear the 200ppm from step (2), enter 15ml in step (4) & press Calculate. YouвЂ™ll see a result in the box for step (4) that says 14.48ml which is very close to 1 tbsp. Enter 5.25% for the concentration (step 1).(steps 1,2,3,4 refer to where you enter numbers in the calculator) : You can work out any dilution with our Dilution Calculator but since it uses metric units, use these as a guide: Information for meeting the sanitizing & disinfecting regulations used in different cities, counties & states is missing from this label. 1mg in 1L is equal to 1ppm but you may want to brush up on your metric first! You may also encounter mg/L which is the weight of something dissolved in a liquid (usually water). You never see money described this way but reading a bunch of reading zeroes after a decimal can be confusing. If you had $10,000, 1 cent would be 0.0001% (a millionth) or 1ppm. One cent is 1% or 1/100th of a dollar which works out to 10000ppm. PPM is often used when very small amounts of one thing are dissolved in large amount of something else, usually water.Д¬onsider money. The 2% in milk refers to the amount of fat with the rest mainly water, and a bit of protein and sugar (lactose). Most liquors are 40% (80 proof) ethanol (ethyl alcohol) with the other 60% being mainly water. You encounter dilutions/concentrations on a daily basis in many common things. We explain how so you make the best use of your Indigoв„ў sanitizer test strips. Figuring out the right dilution for small amounts in spray bottles or larger amounts for sinks & buckets can be a challenge. Chlorine bleach is a common sanitizer/disinfectant used at home, in restaurants, childcare centers and hospitals.

100 ppm bleach solution