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Pet Forum / Aquaria / Cichlids / December 2004Reading water tests
Should water tests be read with a light shining through it, and held up against the white part of the card, or in shadow, held up against the white part of the card?  Signaturehttp://www.neopets.com/refer.phtml?username=moosespet > Should water tests be read with a light shining through it, and held up > against the white part of the card, or in shadow, held up against the > white > part of the card? My understanding is that it should be held against the card and viewed horizontally through the tube, while standing in an area of strong indirect natural sunlight. If the hue is difficult to match, then look directly down the test tube, however the intensity of the color will increase (darken), so ignore that aspect. hth Signaturewww.NetMax.tk > Should water tests be read with a light shining through it, and held up > against the white part of the card, or in shadow, held up against the > white > part of the card? I don't think it matters much really as long as the same amount goes through the tester as hits the color gradients. For me, i have always tested without adding light that would cast any heavy shadows as well as testing before any changes to the water. :-) -James >> Should water tests be read with a light shining through it, and held >> up against the white part of the card, or in shadow, held up against [quoted text clipped - 5 lines] > tested without adding light that would cast any heavy shadows as well > as testing before any changes to the water. :-) It makes a big difference. If I shine light through it, it reads 0. If I don't, it reads 2. Signaturehttp://www.neopets.com/refer.phtml?username=moosespet >> Should water tests be read with a light shining through it, and held >> up against the white part of the card, or in shadow, held up against [quoted text clipped - 5 lines] > tested without adding light that would cast any heavy shadows as well > as testing before any changes to the water. :-) You should give it a try. For me it's the difference between reading a 0 and reading a 2 on my ammonia tester. Signaturehttp://www.neopets.com/refer.phtml?username=moosespet OK, here's what I did to kinda see where you were coming from. I added light as you said and that washes out my sample in the tube. MY method (ymmv) is to hold the tube 1/2'' away and yet parallel to the card, this gives accurate reading for me every time. That's all I got :-) Good Luck -James >>> Should water tests be read with a light shining through it, and held >>> up against the white part of the card, or in shadow, held up against [quoted text clipped - 8 lines] > You should give it a try. For me it's the difference between reading a 0 > and reading a 2 on my ammonia tester. > OK, here's what I did to kinda see where you were coming from. I added > light as you said and that washes out my sample in the tube. MY method > (ymmv) is to hold the tube 1/2'' away and yet parallel to the card, > this gives accurate reading for me every time. > > That's all I got :-) Good Luck I'll give it a shot, thanks :) Signaturehttp://www.neopets.com/refer.phtml?username=moosespet > Should water tests be read with a light shining through it, and held up > against the white part of the card, or in shadow, held up against the white > part of the card? most of them say to place the sample against the white background of the card in good lighting. Did you even bother to rtfm? SignatureMargolis http://web.archive.org/web/20030215212142/http://www.agqx.org/faqs/AGQ2FAQ.htm http://www.unrealtower.org/faq "Margolis" <someone@somewhere.org> wrote in news:7qXud.1525$xM5.666 @fe06.lga: >> Should water tests be read with a light shining through it, and held up >> against the white part of the card, or in shadow, held up against the [quoted text clipped - 3 lines] > most of them say to place the sample against the white background of the > card in good lighting. Did you even bother to rtfm? Wow, aren't you the pleasent type. "good lighting" doesn't say whether there's light shining through it or not. Signaturehttp://www.neopets.com/refer.phtml?username=moosespet ? | Wow, aren't you the pleasent type. | "good lighting" doesn't say whether there's light shining through it or | not. He just gets grumpy sometimes, he'll be fine. <g> What that means, is just look at the card in a well-lit room, without any shadows cast on the card. Don't shine light through it. take the cap off and look down thru the water at white paper. Ingrid >Should water tests be read with a light shining through it, and held up >against the white part of the card, or in shadow, held up against the white >part of the card? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List Manager: Puregold Goldfish List http://puregold.aquaria.net/ www.drsolo.com Solve the problem, dont waste energy finding who's to blame ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Unfortunately, I receive no money, gifts, discounts or other compensation for all the damn work I do, nor for any of the endorsements or recommendations I make. > Should water tests be read with a light shining through it, and held up > against the white part of the card, or in shadow, held up against the > white > part of the card? What do the instructions in your test kit specify? SignatureJayB "JayB" <jerry280@yahoo.com> wrote in news:qajvd.7755$ez4.7078 @news01.roc.ny: >> Should water tests be read with a light shining through it, and held up >> against the white part of the card, or in shadow, held up against the >> white >> part of the card? > > What do the instructions in your test kit specify? They don't. That's why I'm asking here. Signaturehttp://www.neopets.com/refer.phtml?username=moosespet > Should water tests be read with a light shining through it, and held up > against the white part of the card, or in shadow, held up against the white > part of the card? > > -- > http://www.neopets.com/refer.phtml?username=moosespet I was taught in school to use a white background with a lot of light to pick up the color of the solution for liquid tests. Larry > Should water tests be read with a light shining through it, and held up > against the white part of the card, or in shadow, held up against the white > part of the card? |
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