Reading A Refractometer

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Truman42

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Probably a stupid question but when you read a refractometer do you take it from where the solid blue area starts to fade or where the blue ends completely and the area is white. I e noticed this can be a difference if 1 point vehicle is probably not such a big deal but still would like to know.

Cheers
 

NewtownClown

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Probably a stupid question but when you read a refractometer do you take it from where the solid blue area starts to fade or where the blue ends completely and the area is white. I e noticed this can be a difference if 1 point vehicle is probably not such a big deal but still would like to know.

Cheers

You don't see a solid, darker line?
 

tallie

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It should be a fairly solid cut-off point unless you have air bubbles, trub or other crap on the prism, or if you're looking into poor light. Do you get a solid cut-off with just water and looking into a bright light?

Cheers,
tallie
 

bignath

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As others have said you should be seeing a definitive, crisp separation between the blue and white.

Sometimes i see a blurry line, and to fix it, just lift the lid and put back down again. Air bubbles, and crap can affect the clarity of the reading.
 

Nick JD

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Trub. Take a sample in a cup or something that's maybe 30ml, and then let it settle out.

Take the clear stuff off the top. Crisp delineation.
 

Screwtop

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Trub. Take a sample in a cup or something that's maybe 30ml, and then let it settle out.

Take the clear stuff off the top. Crisp delineation.

What e said!

Screwy
 

Truman42

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Thanks gents. Nicks right I don't bother letting it settle and do see trub in my sample. I'll give that a try and see how I go.
I certainly don't see a solid difference. It's more like a vignette from blue to white. I thought I must have been doing it wrong.
 

Robbo2234

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I find that if you can aim it towards a brighter light that seems to help a little too
 

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