{"product_id":"perkinelmer-b050-7805-b250-0100-uv-vis-spectroscopy-calibration-kit-1","title":"PerkinElmer B050-7805 \u0026 B250-0100 UV\/Vis Spectroscopy Calibration Kit","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Used\u003c\/p\u003e\n\n\n\u003cmeta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003e\u003c\/title\u003e\n\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Open+Sans:wght@400;700\u0026amp;family=Montserrat\u0026amp;display=swap\" rel=\"stylesheet\" type=\"text\/css\"\u003e\n\u003cstyle type=\"text\/css\"\u003e\n\n\/* ── Reset ── *\/\n*, ::after, ::before { box-sizing: border-box; }\nbody { margin: 0; padding: 0; background-color: #ececec; color: #000000; }\ntable, td, tr { border-collapse: collapse; vertical-align: top; }\np { margin: 0; }\nstrong { font-weight: 700; }\n\n\/* ── Outer wrapper ── *\/\n.tt-wrap {\n    max-width: 1200px;\n    margin: 0 auto;\n    background: #ffffff;\n}\n\n\/* ── NAVIGATION — desktop only ── *\/\n.tt-nav { background: #ffffff; 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}\n\n\/* ── BANNER — desktop only ── *\/\n.tt-banner { display: none; }\n@media (min-width: 601px) {\n    .tt-banner {\n        display: block;\n        background: url(https:\/\/i.ebayimg.com\/images\/g\/ShMAAOSw6EdoIyeE\/s-l1600.webp) center \/ cover no-repeat;\n        height: 220px;\n        padding: 36px 30px 10px;\n        line-height: 1.2;\n    }\n    .tt-banner p { margin: 0; }\n    .tt-banner .tt-banner-welcome  { font-size: 14px; color: #fff; font-family: 'Open Sans', sans-serif; }\n    .tt-banner .tt-banner-brand    { font-size: 52px; color: #fff; font-weight: 700; font-family: 'Open Sans', sans-serif; }\n    .tt-banner .tt-banner-tagline  { font-size: 14px; color: #fff; font-weight: 700; font-family: 'Open Sans', sans-serif; }\n}\n\n\/* ── TRUST BADGES — desktop only ── *\/\n.tt-badges { display: none; }\n@media (min-width: 601px) {\n    .tt-badges {\n        display: table; width: 100%;\n        border-bottom: 2px solid #000000;\n        border-collapse: collapse;\n    }\n    .tt-badges td {\n        width: 33.33%; 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padding: 8px 4px; min-width: 55px; }\n    .tt-tabs-section { padding: 20px 8px 16px; }\n}\n\n\u003c\/style\u003e\n\n\n\u003cdiv class=\"tt-wrap\"\u003e\n\n\u003c!-- ═══ NAVIGATION (desktop only) ═══ --\u003e\n\u003cdiv class=\"tt-nav\"\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eElectronic T\u0026amp;M\u003c\/a\u003e\n      \u003cul\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Multifunction-Appliance-Test\/_i.html?store_cat=39447829018\"\u003eMultifunction \u0026amp; Appliance Testers\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Multimeters-Clamp-Meters\/_i.html?store_cat=39447995018\"\u003eMultimeters \u0026amp; Clamp Meters\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Oscilloscopes-Accessories\/_i.html?store_cat=39447827018\"\u003eOscilloscopes \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Power-Supplies\/_i.html?store_cat=39447826018\"\u003ePower Supplies\u003c\/a\u003e\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eRF \u0026amp; Microwave\u003c\/a\u003e\n      \u003cul\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Spectrum-Analysers-VNAs\/_i.html?store_cat=45020135018\"\u003eSpectrum Analysers \u0026amp; VNAs\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Cable-Antenna-Analysers\/_i.html?store_cat=45020134018\"\u003eCable \u0026amp; Antenna Analysers\u003c\/a\u003e\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eFiber Optics\u003c\/a\u003e\n      \u003cul\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/OTDR\/_i.html?store_cat=39439326018\"\u003eOTDR\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Splicing\/_i.html?store_cat=39439322018\"\u003eSplicing\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/Loss-Testers-Fault-Locators\/_i.html?store_cat=39439494018\"\u003eLoss Testers \u0026amp; Fault Locators\u003c\/a\u003e\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eNetwork Testers\u003c\/a\u003e\n      \u003cul\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/LAN-Cable-testers-certifiers\/_i.html?store_cat=45020144018\"\u003eLAN Cable Testers \u0026amp; Certifiers\u003c\/a\u003e\u003c\/li\u003e\n        \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\/10G-Testers\/_i.html?store_cat=45020197018\"\u003e10G Testers\u003c\/a\u003e\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eSatellite \u0026amp; GPS\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eMedical \u0026amp; Lab\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/www.ebay.co.uk\/str\/ttinstruments\"\u003eIndustrial\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003c!-- ═══ BANNER (desktop only) ═══ --\u003e\n\u003cdiv class=\"tt-banner\"\u003e\n  \u003cp class=\"tt-banner-welcome\"\u003eWELCOME TO\u003c\/p\u003e\n  \u003cp class=\"tt-banner-brand\"\u003eTT Instruments\u003c\/p\u003e\n  \u003cp class=\"tt-banner-tagline\"\u003eTop Brands | Great Prices | Rapid Delivery\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- ═══ TRUST BADGES (desktop only) ═══ --\u003e\n\u003ctable class=\"tt-badges\" role=\"presentation\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n  \u003ctbody\u003e\n\u003ctr\u003e\n    \u003ctd\u003e\n      \u003cdiv class=\"tt-badge-icon\"\u003e✅\u003c\/div\u003e\n      \u003cdiv class=\"tt-badge-title\"\u003eQUALITY PRODUCTS\u003c\/div\u003e\n      \u003cdiv class=\"tt-badge-sub\"\u003eTop brands, rigorously checked\u003c\/div\u003e\n    \u003c\/td\u003e\n    \u003ctd\u003e\n      \u003cdiv class=\"tt-badge-icon\"\u003e✅\u003c\/div\u003e\n      \u003cdiv class=\"tt-badge-title\"\u003eFAST WORLDWIDE SHIPPING\u003c\/div\u003e\n      \u003cdiv class=\"tt-badge-sub\"\u003eExpress delivery to your door\u003c\/div\u003e\n    \u003c\/td\u003e\n    \u003ctd\u003e\n      \u003cdiv class=\"tt-badge-icon\"\u003e✅\u003c\/div\u003e\n      \u003cdiv class=\"tt-badge-title\"\u003eCOMPETITIVE PRICES\u003c\/div\u003e\n      \u003cdiv class=\"tt-badge-sub\"\u003eBest value for quality equipment\u003c\/div\u003e\n    \u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003c!-- ═══ PRODUCT TITLE ═══ --\u003e\n\u003cdiv class=\"tt-title\"\u003e\n  \u003ch1\u003ePerkinElmer B050-7805 \u0026amp; B250-0100 UV\/Vis Spectroscopy Calibration Kit\u003c\/h1\u003e\n\u003c\/div\u003e\n\n\u003c!-- ═══ IMAGE NOTE ═══ --\u003e\n\u003cdiv class=\"tt-image-note\"\u003e\n  \u003cp style=\"font-family: Verdana, sans-serif; font-size: 13px; color: #555555; font-style: italic; margin: 8px 0; padding: 8px 12px; background: #f9f9f9; border-left: 3px solid #cccccc;\"\u003eThe images provided are of the actual item you will receive. Please review them carefully for cosmetic condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- ═══ ITEM DESCRIPTION HEADER ═══ --\u003e\n\u003cdiv class=\"tt-desc-header\"\u003eItem Description\u003c\/div\u003e\n\n\u003c!-- ═══ DESCRIPTION CONTENT (AI-generated HTML injected here) ═══ --\u003e\n\u003cdiv class=\"tt-desc\"\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-family: Verdana, sans-serif; font-size: 13px; margin: 14px 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"padding:8px 12px; background:#000000; color:#ffffff;\"\u003e\u003cstrong\u003eCondition \u0026amp; Functionality\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; width:38%; font-weight:bold;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eUsed — Excellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eFunctionality\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eBoth standard sets are present and complete with all filters and sealed cells intact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eCosmetic\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eExcellent cosmetic condition — negligible signs of use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-family: Verdana, sans-serif; font-size: 13px; margin: 14px 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd style=\"padding:8px 12px; background:#000000; color:#ffffff;\"\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003e\u003cul style=\"margin:4px 0; padding-left:18px; line-height:1.7;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: normal;\"\u003ePerkinElmer B050-7805 Visible Spectrum Calibration Set — four glass filters (G1, G2, G3, H) mounted in precision aluminium spring mounts, in aluminium container\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: normal;\"\u003ePerkinElmer B250-0100 Secondary Standard Set Pharmacopoeia (DAB\/USP) — six solutions in sealed cells (two reference and four test), in aluminium container\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: normal;\"\u003eProtective carry case\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp style=\"font-family: Verdana, sans-serif; font-size: 14px; color: #191919; line-height: 1.7; margin: 10px 0;\"\u003eThis listing comprises two complementary PerkinElmer UV\/Vis reference standard sets, together covering wavelength accuracy, photometric (ordinate) accuracy, stray light and resolution verification for UV\/Vis and UV\/Vis\/NIR spectrophotometers. The B050-7805 Visible Spectrum Calibration Set provides four individually numbered glass filters in precision aluminium spring mounts, designed for use with standard 10 mm cuvette holders. The B250-0100 Secondary Standard Set Pharmacopoeia provides six solutions in sealed cells — potassium dichromate (photometric accuracy), holmium perchlorate (wavelength accuracy), potassium chloride (stray light) and toluene in hexane (resolution) — for validation in accordance with DAB and USP Pharmacopoeia monographs.\u003c\/p\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-family: Verdana, sans-serif; font-size: 13px; margin: 14px 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"padding:8px 12px; background:#000000; color:#ffffff;\"\u003e\u003cstrong\u003eKit Contents — B050-7805 Visible Spectrum Calibration Set\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; width:38%; font-weight:bold;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eB050-7805\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eFilters Included\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eG1, G2, G3 (neutral density glass filters) and H (didymium\/holmium wavelength reference filter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eMount Type\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003ePrecision aluminium spring mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eCuvette Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eStandard 10 mm cuvette holders — compatible with most UV\/Vis and UV\/Vis\/NIR spectrometers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003ePurpose\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eOrdinate (photometric) and abscissa (wavelength) accuracy verification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-family: Verdana, sans-serif; font-size: 13px; margin: 14px 0;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"padding:8px 12px; background:#000000; color:#ffffff;\"\u003e\u003cstrong\u003eKit Contents — B250-0100 Secondary Standard Set Pharmacopoeia (DAB\/USP)\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; width:38%; font-weight:bold;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eB250-0100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eSolutions Included\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003e6 sealed cells (2 reference, 4 test) — potassium dichromate, holmium perchlorate, potassium chloride, toluene in hexane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eCuvette Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eStandard 10 mm cuvette holders — compatible with most UV\/Vis and UV\/Vis\/NIR spectrometers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003ePharmacopoeia Compliance\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003eDAB (Deutsches Arzneibuch) \/ USP (United States Pharmacopeia)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd; font-weight:bold;\"\u003eParameters Verified\u003c\/td\u003e\n\u003ctd style=\"padding:7px 12px; border:1px solid #dddddd;\"\u003ePhotometric accuracy, wavelength accuracy, stray light level, spectral resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003c!-- ═══ TABS: About Us \/ Shipping \/ Returns \/ Terms \/ Contact ═══ --\u003e\n\u003cdiv class=\"tt-tabs-section\"\u003e\n\n  \u003cinput class=\"tt-tab-radio\" type=\"radio\" name=\"tt-tabs\" id=\"tt-tab1\" checked\u003e\n  \u003cinput class=\"tt-tab-radio\" type=\"radio\" name=\"tt-tabs\" id=\"tt-tab2\"\u003e\n  \u003cinput class=\"tt-tab-radio\" type=\"radio\" name=\"tt-tabs\" id=\"tt-tab3\"\u003e\n  \u003cinput class=\"tt-tab-radio\" type=\"radio\" name=\"tt-tabs\" id=\"tt-tab4\"\u003e\n  \u003cinput class=\"tt-tab-radio\" type=\"radio\" name=\"tt-tabs\" id=\"tt-tab5\"\u003e\n\n  \u003cdiv class=\"tt-tab-labels\"\u003e\n    \u003clabel class=\"tt-tab-label\" for=\"tt-tab1\"\u003eAbout Us\u003c\/label\u003e\n    \u003clabel class=\"tt-tab-label\" for=\"tt-tab2\"\u003eShipping\u003c\/label\u003e\n    \u003clabel class=\"tt-tab-label\" for=\"tt-tab3\"\u003eReturns\u003c\/label\u003e\n    \u003clabel class=\"tt-tab-label\" for=\"tt-tab4\"\u003eTerms\u003c\/label\u003e\n    \u003clabel class=\"tt-tab-label\" for=\"tt-tab5\"\u003eContact\u003c\/label\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"tt-tab-content\"\u003e\n\n    \u003cdiv class=\"tt-tab-pane\"\u003e\n      \u003cp\u003eTT Instruments is an ISO 9001 certified company based in the UK, offering a wide range of used Test \u0026amp; 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