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Unregistered
03-23-2006, 10:23 AM
Does 1,000 ug/kg = 1 ppm? How many parts ppm is 1,800 ug/L?
Does 1,800 ug/L = 1.8ppm? Thank You!

Mrs X
03-23-2006, 11:35 AM
ppm stands for parts per million. There is 1000g in a kg, 1,000,000mg in a kg, and 1,000,000,000ug in a kg.

1000ug/kg is therefore 1ppm

1800ug/L is 1.8ppm.

If you are talking about volumes, 1000mL = 1L, 1,000,000uL = 1L, so 1uL/L = 1ppm. - this is particularly important with gases.

Renee
03-23-2006, 06:08 PM
Thanks! So does 53,000 ug/kg = 53ppm? Is water 1,800 ug/L = 1.8 ppm? Very Appreciative

thiago
12-09-2008, 02:40 PM
if each tablet has 800ug how many tablets would 1kg do?

sorry am so confused with all ...

Jennifer
01-15-2009, 12:32 PM
thank you for the info to convert ug/kg to ppm

if 1000 ug/kg = 1ppm, then 50ug/kg = 0.05ppm,...correct?

what is 0.05ppm expressed as a percent?
can you show me the equation? for the lay reader like me?

thank you

Mrs X
01-17-2009, 12:02 AM
thank you for the info to convert ug/kg to ppm

if 1000 ug/kg = 1ppm, then 50ug/kg = 0.05ppm,...correct?

what is 0.05ppm expressed as a percent?
can you show me the equation? for the lay reader like me?

thank you
the equation is 0.05/1,000,000 x 100 = 5e-6%

For problems such as this, you can always relate it to what "100%" MEANS.

A pure substance is 1,000,000ppm.

Unregistered
11-06-2009, 09:21 AM
If a liquid is 1800ppm and 3500ppm what is the % equivalent?

JohnS
11-06-2009, 11:06 AM
If a liquid is 1800ppm and 3500ppm what is the % equivalent?

Divide by 10000 to convert ppm to percent, so
0.18% and 0.35%.

S3L
06-16-2010, 08:58 AM
Hello,

I have a doubt about the conversion if I have the result as bellow:

221 ug/kg = ?? PPB

It's urgent, I'll be gratefull with if someone could answer correctly to me.

rgds,

JohnS
06-16-2010, 09:04 AM
Hello,

I have a doubt about the conversion if I have the result as bellow:

221 ug/kg = ?? PPB

It's urgent, I'll be gratefull with if someone could answer correctly to me.

rgds,

Micrograms and kilograms differ by 10^9, so if ppm by weight is what you want, 221 µg/kg = 221 ppb w/w

Parts per million (or billion) can also be ratios of volumes or moles.

Unregistered
01-28-2011, 01:00 PM
so 12 ug/L = 0.0012PPM?

JohnS
01-28-2011, 04:00 PM
so 12 ug/L = 0.0012PPM?

One too many zeroes. 12 ppb (parts per billion or 0.012 ppm

Unregistered
05-24-2011, 01:19 PM
I need help if 1.0%=10,000ppm then 5123ppm=

Unregistered
02-07-2012, 12:28 AM
Listen when working with ug you are using the 1,000,0000 that's billion. This conversions are straight forward in this case just put the billion up and put the ug number under it.

Or
ug 221 is

1,000,000,000
221
when using the micro gram that part is to what ever it is to a billion. And this is all based on the kilogram or kg. or only 221 ppb. Hope that helps.

Unregistered
12-12-2012, 06:08 AM
I have purchased some colloidal silver at a strength of 14,000ug/l

Can anyone tell me how many parts of colloidal silver would be contained in a 100ml dose ???

Cheers guys

Dean

JohnS
12-12-2012, 12:32 PM
I have purchased some colloidal silver at a strength of 14,000ug/l

Can anyone tell me how many parts of colloidal silver would be contained in a 100ml dose ???

Cheers guys

Dean

14 mg/L x 0.1 L = 1.4 mg (or 1400 µg)