{"title":"Testing Equipment","description":"","products":[{"product_id":"icecap-salinity-temperature-digital-pocket-tester","title":"IceCap Salinity\/Temperature Digital Pocket Tester","description":"\u003ch2 data-mce-fragment=\"1\"\u003eEliminate the Uncertainty Associated with Mechanical Refractometers\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe IceCap SPT03 Digital Pocket Tester is a portable, rugged, water resistant device that utilizes electric conductivity to determine the specific gravity\/salinity of natural and artificial seawater. Within seconds, the salinity and temperature are measured and visually displayed on the easy to read backlit LCD screen.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHigh Resolution Salinity Measurement\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eLarge Backlit LCD Display\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWater Temperature Reading\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCalibratable\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e","brand":"IceCap","offers":[{"title":"Default Title","offer_id":45510059426105,"sku":"IC-SPT03","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6085\/4329\/files\/icecap-salinitytemperature-digital-pocket-tester-ruby-mountain-aquarium-supply.webp?v=1704760604"},{"product_id":"f-3ml-pipettes","title":"3ml Pipettes","description":"\u003cdiv id=\"dvTop\" class=\"dvTopSubGroupBase\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"dvLeftContent\" class=\"dvLeftContentSubgroupBase\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"dvImage\" class=\"dvImageSubgroupBase\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"responsive-image-medium responsive-image-wrapper\" data-mce-fragment=\"1\"\u003e\u003ca id=\"lnkItemImage\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"image-container\" data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cpicture data-mce-fragment=\"1\"\u003e\u003csource id=\"wideHDSrc\" media=\"(min-width:1260px)\" srcset=\"https:\/\/img.uline.com\/is\/image\/uline\/HD_3395?$MediumRHD$\" data-mce-fragment=\"1\"\u003e\u003csource id=\"hdSrc\" media=\"(max-width:1259px)\" srcset=\"https:\/\/img.uline.com\/is\/image\/uline\/HD_3395?$MediumHD$\" data-mce-fragment=\"1\"\u003e\u003cimg class=\"itemResultImage\" alt=\"Transfer Pipettes\" src=\"https:\/\/img.uline.com\/is\/image\/uline\/HD_3395?$MediumRHD$\" usemap=\"#imgMapWide\" data-mce-fragment=\"1\"\u003e\u003c\/source\u003e\u003c\/picture\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"dvExpandLink\" class=\"EnlargeLink dvExpandLinkSubgroupBase\" data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"dvChartAnchorText\" class=\"dvChartAnchorTextSubgroupBase\" data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"dvRightContent\" class=\"dvRightContentSubgroupBase\" data-mce-fragment=\"1\"\u003e\n\u003cdiv id=\"dvTitle\" class=\"pagetitle_product pagetitleSubgroup dvTitleSubgroupBase\" data-mce-fragment=\"1\"\u003e\n\u003ch1 data-mce-fragment=\"1\"\u003eTRANSFER PIPETTES\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"dvCopy\" class=\"BrowseCopy subgroupBrowseCopy subGroupCopy subGroupCopySubGroup proDetCopy proDetCopySubgroup\" data-mce-fragment=\"1\"\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"100%\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" class=\"BrowseCopy subGroupCopy\" width=\"100%\" data-mce-fragment=\"1\"\u003eTransfer fluids to sample tubes one drop at a time.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd class=\"proDetCopy\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUse in classrooms and research labs. Non-sterile.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSqueezable and flexible LDPE plastic.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDisposable to prevent cross-contamination.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eGraduated for accurate measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clearfix\" data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"dvChart\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd 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type=\"2\"\u003eSOLD IN CARTON QUANTITIES\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"subgroupChartHeader\" data-mce-fragment=\"1\"\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL1d5BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1581\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"778\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003eMODEL\u003cbr\u003eNO.\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1582\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"779\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003eSIZE\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1583\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"780\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003eGRADUATION\u003cbr\u003eRANGE\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1585\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"781\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003eGRADUATION\u003cbr\u003eINCREMENTS\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1586\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"782\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003eQTY.\/\u003cbr\u003eCTN.\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" colspan=\"3\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1599\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"956\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003ePRICE PER CARTON\u003c\/attrib\u003e\u003cattrib a=\"1855\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR1d5BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1597\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"915\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003eADD TO\u003cbr\u003eCART\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"subgroupChartHeader\" data-mce-fragment=\"1\"\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1600\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"947\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003e1\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1601\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"948\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003e3\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartHeadLargeBaselineH19BL0d75BR0d75BT0d75BB0d75\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1602\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"16\"\u003e\u003cattrib a=\"949\" l=\"10\" o=\"814636\" p=\"427813\" s=\"1334\" status=\"3\" type=\"2\"\u003e10+\u003c\/attrib\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd class=\"ChartCopyLargeCtrW52H19BL1d5BR0d75BT0d75BB0d0\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"43\" l=\"10\" o=\"766820\" p=\"814636\" s=\"1334\" status=\"3\" type=\"2\"\u003e\u003ca href=\"https:\/\/www.uline.com\/Product\/Detail\/S-24318\/Labware\/Transfer-Pipette-3-mL\"\u003eS-24318\u003c\/a\u003e\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartCopyLargeCtrW45H19BL0d75BR0d75BT0d75BB0d0\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1674\" l=\"10\" o=\"766820\" p=\"814636\" s=\"1334\" status=\"3\" type=\"2\"\u003e3 mL\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartCopyLargeCtrW75H19BL0d75BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003cattrib a=\"1930\" l=\"10\" o=\"766820\" p=\"814636\" s=\"1334\" status=\"3\" type=\"2\"\u003e0.25 - 1 mL\u003c\/attrib\u003e\u003c\/td\u003e\n\u003ctd class=\"ChartCopyLargeCtrW75H19BL0d75BR0d75BT0d75BB0d75\" rowspan=\"2\" data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Freshwater Fish 'N Stuff","offers":[{"title":"Default Title","offer_id":45661489332537,"sku":"KF1SK8S5CVNP2","price":0.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6085\/4329\/files\/3ml-pipettes-ruby-mountain-aquarium-supply.png?v=1704760776"},{"product_id":"f-1ml-pipettes","title":"1ml Pipettes","description":"1ml plastic pipette","brand":"Freshwater Fish 'N Stuff","offers":[{"title":"Default Title","offer_id":45661489660217,"sku":"ZSXZ0B70ST3PW","price":0.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6085\/4329\/files\/1ml-pipettes-ruby-mountain-aquarium-supply.jpg?v=1704760776"},{"product_id":"d-d-seawater-refractometer-w-auto-temperature-compensation","title":"D-D Seawater Refractometer w\/ Auto Temperature Compensation","description":"\u003cdiv class=\"field-item odd\"\u003e\n\u003cdiv class=\"background-default\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"entity entity-paragraphs-item paragraphs-item-just-text col-xs-12\" typeof=\"\" about=\"\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"field field-name-field-body field-type-text-long field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\n\u003cdiv class=\"field-item even\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbig\u003eD-D True Seawater Refractometer\u003c\/big\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHand held instrument for the measurement of the TRUE Salinity and Specific Gravity (S.G.) of sea water by refractive index.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhat is different about the D-D Seawater Refractometer?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAlmost all hand held salt water refractometers available to the hobby are designed and calibrated for the testing of brine solutions, i.e. sodium chloride, and are not calibrated for the refractive index of natural sea water.\u003c\/p\u003e\n\u003cp\u003eEven though the largest percentage of salt in the sea is sodium chloride, the presence of other significant ions such as magnesium and calcium in natural sea water results in a different refractive index relative to that of brine. A standard salt (brine) refractometer will therefore not give the correct salinity for natural sea water (NSW) and a conversion factor must be applied.\u003c\/p\u003e\n\u003cp\u003eFor example a 35ppt solution of NSW has the same refractive index as a 36.5ppt solution of brine.\u003c\/p\u003e\n\u003cp\u003eAfter extensive development, D-D’s new ATC refractometer addresses this issue as the scale is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecalibrated for seawater\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003egiving true salinity results for aquarium use when correctly calibrated and greater accuracy than previously attainable.\u003c\/p\u003e\n\u003cp\u003eOur refractometers feature a copper internal body which conducts heat faster than cheaper aluminium and plastic versions for faster and more accurate auto temperature compensation.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProduct Code AQPR001\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"field field-name-field-hide-title-underline field-type-list-boolean field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\n\u003cdiv class=\"field-item even\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"field-item even\"\u003e\n\u003cdiv class=\"background-default\"\u003e\n\u003cdiv class=\"entity entity-paragraphs-item paragraphs-item-text-with-image-on-right text-with-image container\" typeof=\"\" about=\"\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003ch2 class=\"sub-title increase- decrease-\"\u003e\u003cspan\u003eEasier to Read \u0026amp; ATC\u003c\/span\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-8\"\u003e\n\u003cdiv class=\"field field-name-field-body field-type-text-long field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\n\u003cdiv class=\"field-item even\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eEasier to Read\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOne of the other problems with most refractometers is that the scale displayed normally reads from 0-100ppt when we are really only interested in the region from 30-40ppt. Our new Seawater Refractometer has therefore been specifically designed to read from 0-40ppt which gives you 2.5 times the resolution of a normal 0-100 scale.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAuto Temperature Compensation (ATC)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThere is a lot of misunderstanding concerning the way the ATC feature works and its effect on the refractometer at different ambient room temperatures.\u003c\/p\u003e\n\u003cp\u003eSalinity is a measurement of a mass of salt in a mass of water and therefore does not vary with temperature however a refractometer does not measure salinity directly but measures the refractive index which is then displayed as salinity. The refractive index of a solution does vary with temperature therefore the reading that you measure with a refractometer is always temperature dependant.\u003c\/p\u003e\n\u003cp\u003eAn ATC refractometer has a bimetal strip inside the instrument that moves the reading scale as the temperature changes to compensate for the change in refractive index. What people do not generally understand is that it is the temperature of the instrument and not the water temperature that is important as the small sample of water used for testing will equilibrate within seconds to the temperature of the refractometer.\u003c\/p\u003e\n\u003cp\u003eOnce correctly calibrated at the set calibration temperature of 20oC the refractometer can then be used in environments where the ambient temperature and therefore instrument temperature would heat up or cool down within the range of the ATC which is between 10 and 30 centigrade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-sm-4\"\u003e\n\u003cdiv class=\"field field-name-field-image field-type-image field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\n\u003cdiv class=\"field-item even\"\u003e\u003cimg title=\"Refract\" alt=\"\" height=\"596\" width=\"600\" src=\"https:\/\/www.theaquariumsolution.com\/sites\/default\/files\/styles\/text-with-image\/public\/text-with-images\/Refract%20Scale.png?itok=f58QG45K\" typeof=\"foaf:Image\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"field-item odd\"\u003e\n\u003cdiv class=\"background-default\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"entity entity-paragraphs-item paragraphs-item-just-text col-xs-12\" typeof=\"\" about=\"\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003ch2 class=\"sub-title increase- decrease-\"\u003e\u003cspan\u003eCalibration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"field field-name-field-body field-type-text-long field-label-hidden\"\u003e\n\u003cdiv class=\"field-items\"\u003e\n\u003cdiv class=\"field-item even\"\u003e\n\u003cp\u003eIf you look at the scale above you will see that the refractometer states that it is calibrated at and displays the SG of seawater at 20C.\u003c\/p\u003e\n\u003cp\u003eMost salt refractometers use this temperature and will be marked 20C or 20\/20. Calibration should always be carried out with the instrument at 20C which is close to the average room temperature in most cases. Allow the refractometer to stand at this temperature for 30 minutes to equilibrate.\u003c\/p\u003e\n\u003cp\u003eThe D-D refractometer is designed with a copper body which is more expensive to manufacture but responds faster to ambient temperature changes than other materials.\u003c\/p\u003e\n\u003cp\u003eNote that the refractive index is also dependant on the wavelength of light too and therefore a light source closest to daylight should also be used.\u003c\/p\u003e\n\u003cp\u003eD-D refractometers are calibrated at 20C and so the calculated specific gravity at 35ppt displays a reading of 1.0266. This is the equivalent to a specific gravity reading of 1.0264 for a water sample temperature of 25C using a standard hydrometer that has a calibration temperature of 77F or 25C.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"D-D The Aquarium Solution","offers":[{"title":"Default Title","offer_id":45720792498489,"sku":"DD0001","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6085\/4329\/files\/d-d-seawater-refractometer-w-auto-temperature-compensation-ruby-mountain-aquarium-supply.jpg?v=1704760788"},{"product_id":"milwaukee-cd97-digital-tds-tester-low-range","title":"Milwaukee CD97 Digital TDS Tester - Low Range","description":"\u003cdiv class=\"single-product-meta-item single-product-meta-item-sku\" data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"single-product-meta-item-label\" data-mce-fragment=\"1\"\u003eSKU:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"single-product-meta-item-value\" data-product-sku=\"\" data-mce-fragment=\"1\"\u003eCD97\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"single-product-meta-item single-product-meta-item-custom-fields\" data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"single-product-meta-item-label\" data-mce-fragment=\"1\"\u003eRANGE:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"single-product-meta-item-value\" data-mce-fragment=\"1\"\u003e0 to 999 ppm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"single-product-meta-item single-product-meta-item-custom-fields\" data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"single-product-meta-item-label\" data-mce-fragment=\"1\"\u003eRESOLUTION:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"single-product-meta-item-value\" data-mce-fragment=\"1\"\u003e1 ppm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"single-product-meta-item single-product-meta-item-custom-fields\" data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"single-product-meta-item-label\" data-mce-fragment=\"1\"\u003eACCURACY:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"single-product-meta-item-value\" data-mce-fragment=\"1\"\u003e±10 ppm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"single-product-meta-item single-product-meta-item-custom-fields\" data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"single-product-meta-item-label\" data-mce-fragment=\"1\"\u003eTEMPERATURE COMPENSATION:\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"single-product-meta-item-value\" data-mce-fragment=\"1\"\u003eAutomatic 5 to 50°C (41 to 122°F)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"single-product-meta-item single-product-meta-item-custom-fields\" data-mce-fragment=\"1\"\u003e\u003cspan class=\"single-product-meta-item-value\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"single-product-meta-item single-product-meta-item-custom-fields\" data-mce-fragment=\"1\"\u003e\n\u003ch1\u003e\u003cstrong\u003eDIGITAL. SIMPLE. COMPACT.\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eThe Milwaukee CD97 Total Dissolved Solids Low Range (PPM)  Pen is designed for water conditioning, education and many other applications. The CD97 helps you make sure that your keep your filters up-to-date and clean for water filtration and is a cost effective tool for teacher's science labs. Keep PPM in your target range to help your achieve better results.\u003c\/p\u003e\n\u003ch2\u003eDESIGN FEATURESS\u003c\/h2\u003e\n\u003ch2\u003eMEASURES TOTAL DISSOVLED SOLIDS (PPM) DIRECT AND WITH AUTOMATIC TEMPERATURE COMPENSATION.\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal range for water conditioning (0 to 999 ppm).\u003c\/li\u003e\n\u003cli\u003eUnits in ppm easily convertable to uS\/cm.\u003c\/li\u003e\n\u003cli\u003eFactory calibrated with the ability to recalibrate if needed.\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC).\u003c\/li\u003e\n\u003cli\u003e300 hours continuous use (4 x 1.5V batteries included).\u003c\/li\u003e\n\u003cli\u003eSimple one point calibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Milwaukee Instruments","offers":[{"title":"Default Title","offer_id":45763076260153,"sku":"MIL0101","price":21.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6085\/4329\/files\/milwaukee-cd97-digital-tds-tester-low-range-ruby-mountain-aquarium-supply-1.jpg?v=1704760863"},{"product_id":"salifert-nitrite-test-kit","title":"Salifert Nitrite Test Kit","description":"\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNitrite testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eNitrite is a substance that is toxic to fish and invertebrates.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eIt is a misconception that once a tank is through its cycle (first 3 or 4 weeks) that nitrite has vanished.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eMany nitrite test kits suffer from interference by amines (such as naturally occurring and essential amino acids) resulting in a too low measured value especially if the nitrite concentration is relatively low.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eNitrite is converted to nitrate in properly cycled aquariums. The thus formed nitrate is transformed into harmless nitrogen gas (=denitrification). This happens in areas deprived of oxygen within live rock and miscellaneous filter materials.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eBefore it can be transformed to nitrogen gas the nitrate is first converted back to nitrite. When for whatever reason this particular cycle can not be completed, toxic nitrite can be present in significant concentration and readily be detected by test kits that do not suffer from amine interference.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConclusion:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eMany nitrite test kits have the potency to suffer from amine interference resulting in toxic nitrite not being detected.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eSalifert’s Nitrite test kit does not suffer from such an amine interference because very special ingredients are used.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eThese same ingredients also result in a full color development within minutes. The developed color is very intense making detection of even minute traces of nitrite easy. It probably is the most sensitive, accurate and fastest nitrite test kit available.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003e \u003c\/p\u003e\n\u003cp style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eThe kit can perform approx. 60 measurements.\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":46810777878841,"sku":"SAL1017","price":11.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/6085\/4329\/files\/salifert-nitrite-test-kit-ruby-mountain-aquarium-supply.jpg?v=1704761226"}],"url":"https:\/\/19d36d.myshopify.com\/collections\/testing-equipment.oembed","provider":"Ruby Mountain Aquarium supply","version":"1.0","type":"link"}