DiscusGeo posted a link to this site recently . .
http://aqua.ucdavis.edu/tools/treatmentcnf.html
Help - can somebody post a thread for converting mg/l to ppm and other useful conversions. I remember seeing one in the not to distant past, but can't seem to
find it again. I thought it was something Randall had posted at one time in Water Works .
thanks anyone
Kevin
;D
DiscusGeo posted a link to this site recently . .
http://aqua.ucdavis.edu/tools/treatmentcnf.html
Thanks Carol, just what I was looking for.
Kevin
Conversions & Abbreviations from LaMotte General. Please Carol make this a sticky or something that everyone needs to copy and paste into their Word Processor.
George
General:
Conversions Abbreviations
ppm = mg/L ppm = parts per million
1mg/L = 1,000 microgram/L mg/L = milligrams per liter
1ppm = 1,000ppb ppb = parts per billion
cc = ml cc = cubic centimeters
1ml = 1g water g = gram
1% = 10,000ppm ml = milliliters
1% = g/100mL ppt or 0/00 = parts per thousand
1ppt = 1,000ppm ppb = parts per billion
1% = 10ppt ug/g = microgram/gram
0.1% = 1g/L 1ug/g = 1ppm
1000ppb = 1ppm g/L = gram per liter
Hardness:
Conversions Abbreviations
1gpg = 17.1ppm CaCO3 gpg = grains per gallon
CaCO3 = calcium carbonate
Alkalinity:
Conversions Abbreviations
1dKh = 17.9ppm CaCO3 dKh = German degrees of hardness (also shown as Kh)
1 meq/L = 50ppm CaCO3 meq/L = milli equivalents per liter
Weight:
Conversions Abbreviations
16oz = 1lb 7000 grains = 1lb
0.454kg = 1lb kg = kilograms
454g = 1lb mg = milligrams
1kg = 1000g g = grams
1g = 1000mg 28.349g = 1oz
Conductivity/TDS (total dissolved solids):
Conductivity Units:
uS = microSiemens = mhos/cm = micromhos per centimeter
mS = milliSiemens = mmhos/cm = millimhos per centimeter
(mhos and Siemens are the same)
TDS Units:
ppm = parts per million
ppt = parts per thousand
Conductivity/TDS Conversions:
1mS = 1,000uS
1ppt = 1,000ppm
uSiemens x 0.7 = ppm
Temperature:
(1.8 x °C) + 32 = °F
(°F - 32) x 0.56 = °C
Soil:
1ppm = 2 lbs/acre = 1.13 Kg/hectare
Volume:
15ml = 1/2oz
250ml = 8oz
3800ml = 1 gallon
30ml = 1oz
500ml = 1pint
60ml = 2oz
1000ml = 1quart
120ml = 4oz
2000/2500ml = 1/2 gallon
3.78L = 1gal
128oz = 1gal
2pt = 1qt
4qt = 1gal
qt = quart
pt = pint
Dissolved Oxygen
Oxygen is critical to the survival of aquatic plants and animals, and a shortage of dissolved oxygen is not only a sign of pollution, it is harmful to the fish. Some aquatic species are more sensitive to oxygen depletion than others, but some general guidelines to consider when analyzing test results are:
5-6 ppm Sufficient for most species
<3 ppm Stressful to most aquatic species
<2 ppm Fatal to most species
Thanks George - I saved it as a Word doc for future reference.
Kevin
Great Keith I am glad it helps.
I stickied it here for now.
You water boys need to do an index or your whole first page will be stickies pretty soon, lol.
Well , there is an index stickied too, but questions keep coming up on the usual stuff too, so I don't know what to unsticky anymore??
Thanks George!
Here are some more conversions for you.
When working with TDS (Total Dissolved Solids) measurements, there is sometimes a need to convert units. Below are a few common measures and conversions to other units.
1 Grain = 0.0648g (grams) = 64.8mg (milligrams) = 0.00228 oz (ounces)
Convert grains to grams: multiply grains by 0.0648 gram/grains = grams
Convert ounces to grams: multiply ounces by 28.35 grams/ounce = grams
Convert grams to mg (milligrams): multiply grams by 1000 mg/g = mg
Convert mg to ppm in a liquid: divide mg into liters = ppm
Convert ppm to ppt: divide ppm by 1000 ppm/ppt = ppt
Or vice-verse:-
Convert ppt to ppm: multiply ppt by 1000 ppm/ppt = ppm
Convert ppm to mg: multiply ppm by liters = mg
Convert mg to grams: divide by 1000 mg/g = grams
Convert grams to ounces: divide grams by 28.35 grams/ ounce = ounces
Convert grams to grains: divide grams by 0.0648 grams/grain = grains
From the top, an example of converting grains to ppm and ppt:
5 grains x 0.0648 gram/grains = 0.324 grams
0.324 grams x 1000 mg/g = 324 mg
324 mg ÷ 1 liter = 324 ppm
(if in 2 liters . . . 324 mg ÷ 2 liters = 162 ppm)
(if in 0.5 liters . . . 324 mg ÷ 0.5 liters = 648 ppm)
324 ppm ÷ 1000 ppm/ppt = 0.324 ppt
You may already see the short cut
0.324 grams in 1 liter = 0.324 ppt (because 1 gram in 1 liter = 1 ppt)
For ounces, here is how to convert to ppm and ppt:
5 ounces x 28.35 grams/ounce = 141.75 grams
141.75 grams x 1000 mg/g = 141,750 mg
141,750 mg ÷ 1 liters = 141,750 ppm
(if in 2 liters . . . 141,750 ÷ 2 liters = 70,875 ppm)
(if in 0.5 liters . . . 141,750 ÷ 0.5 liters = 283,500 ppm)
141,750 ppm ÷ 1000 ppm/ppt = 141.75 ppt
Ok, so my KH=5=89.5ppm TDS
so what about my GH.. does this come in to it?? this is currently 10
GH is converted he same as KH or at 17.1 grains per gallon or at 17.9 degrees of hardness. However, GH is general hardne4ss and incorporates all measurable minerals. KH solely measures CaCO3.
This may help -
http://members.cruzio.com/~dane/conversion.htm
Originally Posted by RAWesolowski
Is there anybody who can explain more about GH and KH?
Can I measure only TDS or total hardness as ppm and calculate my GH and KH?
Or I should measure them separately?
Last edited by aziyaeian; 08-08-2005 at 03:40 PM.
been looking for this. thank you!!!
pat.
bah all these charts!!! hows about something easy
http://winecountrydiscus.com/conversions/index.html
this page is still in the works,some more conversions to be added, but this is where it will reside.
jon