salifert nittrate test kit

[jose hernandez]

so i was having issues with nitrates so i was adding neo nitro by brightwell im using the salifert nitrate test kit its a little confusing to me when i put it on top of the card its close to 25 but after reading the instructions it suggest to hold it against the card sideways and the color closet to the chart you divide it by 10 doing that i get 100 so if i divide it by 10 my nitrate should be 0.10 is this right or im i doing it wrong

 

[Gareth elliott]

The low range is to be used if you get a result lower than 10 use the low range instructions. For above 10 you simply use the result given.

 

[WVNed]

10. not 0.10
I read mine that way and figure it is 20. The test isn't going to read to one of colors on the card many times.
It is telling you the level is between the two closest ones.

 

[Gareth elliott]

Fwiw
All nitrate tests are annoying, the nyos is probably the easiest to read.
red sea pro is accurate but takes forever.
API is accurate between 10-40 no3 if you can deal with the amount of shaking you have to do. If have a centrifuge would be my go to for lps levels of no3 lol.

 

[jose hernandez]

API was reading 0 that is why I switched to salifert Red Sea was to complicated ok so by using the low range I get 100 so divided by 10 it’s 10 so I’m a little confused aground it .10 or 10?

 

[Adamantium]

API was reading 0 that is why I switched to salifert Red Sea was to complicated ok so by using the low range I get 100 so divided by 10 it’s 10 so I’m a little confused aground it .10 or 10?

100/10 is 10, but you’re probably just getting the darkest pink it can possibly be, so it caps at 10 (100 when viewed from the side). Read it from top down. You only use the side view when your result is less than 10.

 

[madweazl]

Viewed from the side:

100 = 10
50 = 5
25 = 2.5
10= 1
5 = .5
2 = .2

Viewed top down, the value equals what is on the card. As nitrate levels fall, it becomes to difficult to differentiate the colors so you look through the side.

 

[jose hernandez]

Viewing it from the top down color is 25 so is that 2.5? Or is my nitrate high?

 

[Adamantium]

Top down is whatever it shows (so, 25 in your case). Only when viewed from the side do you divide by 10 (only used when nitrates show less than 10 top down).

 

[ScottR]

I always hated the low range method. How can you divide colors with the human eye? I can’t even distinguish the difference between purple and indigo. I struggle enough with other titration tests.

 

[Adamantium]

I always hated the low range method. How can you divide colors with the human eye? I can’t even distinguish the difference between purple and indigo. I struggle enough with other titration tests.

I don’t follow? You look at it from the side, and match the color to the chart, then divide that number by 10. You’re not “dividing colors”.

 

[ScottR]

I don’t follow? You look at it from the side, and match the color to the chart, then divide that number by 10. You’re not “dividing colors”.

Here are the instructions. I’m stupid with this stuff but can you tell me what they mean? I always thought you look at the color and divide it by ten based on the color chart.

Compare the color for the low range procedure by looking through the side of the test vial. Hold the white part of the color chart firmly against the opposite side of the test vial. Use diffuse daylight when comparing colors. The color is amplified by approximately 10-fold so you have to divide the color chart values by 10.

 

[Adamantium]

Here are the instructions. I’m stupid with this stuff but can you tell me what they mean? I always thought you look at the color and divide it by ten based on the color chart.

Compare the color for the low range procedure by looking through the side of the test vial. Hold the white part of the color chart firmly against the opposite side of the test vial. Use diffuse daylight when comparing colors. The color is amplified by approximately 10-fold so you have to divide the color chart values by 10.

Basically, you look through the side (rather than top down) and match the color up with the chart. So, let’s say it’s a darker pink, and matches the 50. Thats a reading of 5 (50 divided by 10). So, in theory, viewed from the top down it should match up with the 5. It can be hard to match up the low range numbers, so this makes it easier to delineate where your nitrates are sitting if they’re less than 10.

 

[ScottR]

Basically, you look through the side (rather than top down) and match the color up with the chart. So, let’s say it’s a darker pink, and matches the 50. Thats a reading of 5 (50 divided by 10). So, in theory, viewed from the top down it should match up with the 5. It can be hard to match up the low range numbers, so this makes it easier to delineate where your nitrates are sitting if they’re less than 10.

Exactly, but how can you take a color sample and break down what is 50% or 10% of a color? It’s guess work at best. And with hobby-grade kits, we already struggle to measure out 1mL of water precisely. Let alone putting in accurate drops and scoops of reagent.

 

[Adamantium]

Exactly, but how can you take a color sample and break down what is 50% or 10% of a color? It’s guess work at best. And with hobby-grade kits, we already struggle to measure out 1mL of water precisely. Let alone putting in accurate drops and scoops of reagent.

I don’t understand what you mean. You’re matching up the color exactly. The only thing you divide is the number you get when you match it up. It looks different from the side than it does from the top (darker).

 

[Graffiti Spot]

The color represents a number... which you then divide...

this threads making my head spin!!! And I have trouble seeing certain colors too but the nitrate test from salifert is great!

You only read from the side if your result from looking down at the top is clear...

 

[ScottR]

I don’t understand what you mean. You’re matching up the color exactly. The only thing you divide is the number you get when you match it up. It looks different from the side than it does from the top (darker).

Oh I see. I think I understand this now

 

[ylreefer]

Sorry had to laugh.
I think the answer has already been cleared up. View from the top down and if you see a colour that reads lighter than 10plm you may then look through the side as it's easier to see the colour. You take that reading let's say it's 100 and you devide that NUMBER by 10 just as you would any numerical math and that gives you 10. So yes the original poster your no3 is 10 if your reading 100.itsnot 0.10.

Also ill add to this that every human eye will not detect colours the exact same way, these tests are designed to be read under FULL spectrum lighting (I.e Daylight) in order to get the best possible results. This is more important in test that range from different colours like say the columbus P04 test which goes from light green to dark blue. If you look under fluorescent households lighting it'll show a very different result than it would if you compare under natural daylight, just something to bare in mind.

 

[Randy Holmes-Farley Verified Community Expert]

The color is amplified by approximately 10-fold so you have to divide the color chart values by 10.

That means match the color and divide the stated value by 10. No color dividing. There are no kits of any type that expect you to divide color intensity.

 

[jose hernandez]

i understand it now as far as the colors from top down its 25 from the side is 100 my only question now is 25 high for nitrates looking to add sps