{"product_id":"globe-scientific-ss-z-rack-12-13mm","title":"Globe Scientific SS Z-Rack 12\/13mm - 25 or 50-Place | Autoclavable","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePolypropylene tube racks fail in a predictable sequence under high-autoclave-cycle use: repeated steam sterilization gradually warps the body, dimensional tolerance degrades, and eventually tubes lean instead of standing upright. Globe Scientific's 12\/13mm Stainless Steel \"Z\" Shape Tube Racks eliminate this failure mode entirely. Stainless steel is unaffected by autoclave temperatures, resists virtually all common lab chemicals, and maintains its geometry through unlimited sterilization cycles — holding every tube position at the same consistent angle on the last autoclave cycle as on the first.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eAvailable in 25-Place (457100, $37.60\/EA) and 50-Place (457105, $45.80\/EA), both for 12mm and 13mm OD tubes. The Z-shape profile inclines all positions at a uniform angle, preventing tube-to-tube contact and lateral lean across the full rack capacity.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures and Benefits\u003c\/h2\u003e\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eStainless Steel — No Degradation Over Service Life:\u003c\/strong\u003e Resists autoclave temperatures, lab chemicals, detergents, and disinfectants without warping, cracking, or discoloration. Service life in high-autoclave environments far exceeds any polymer alternative.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003e\"Z\" Shape for Stable, Consistent Tube Support:\u003c\/strong\u003e The inclined Z-rack geometry holds every tube at the same angle across all positions, preventing tube lean and tube-to-tube contact through bench handling, incubation, and transport.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003e25-Place and 50-Place Options:\u003c\/strong\u003e 25-Place (457100, $37.60) for individual workstations; 50-Place (457105, $45.80) for larger batch processing at a single bench station.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eFits 12mm and 13mm OD Tubes:\u003c\/strong\u003e Covers the most common small-diameter collection and test tube formats used in clinical chemistry, urinalysis, and research sample processing.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eUnlimited Autoclave Cycles:\u003c\/strong\u003e No cycle count or temperature caveats — stainless racks can be autoclaved indefinitely at any standard sterilization temperature without dimensional change.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003e25-Place (457100)\u003c\/th\u003e\n\u003cth\u003e50-Place (457105)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Compatibility\u003c\/td\u003e\n\u003ctd\u003e12mm and 13mm OD\u003c\/td\u003e\n\u003ctd\u003e12mm and 13mm OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e25-Place\u003c\/td\u003e\n\u003ctd\u003e50-Place\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice (EA)\u003c\/td\u003e\n\u003ctd\u003e$37.60\u003c\/td\u003e\n\u003ctd\u003e$45.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eZ-Shape inclined positions\u003c\/td\u003e\n\u003ctd\u003eZ-Shape inclined positions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoclavable\u003c\/td\u003e\n\u003ctd\u003eYes — unlimited cycles\u003c\/td\u003e\n\u003ctd\u003eYes — unlimited cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eLaboratory Applications\u003c\/h2\u003e\u003cul class=\"marker:text-quiet list-disc\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHigh-use clinical and research labs autoclaving rack equipment daily, where stainless construction eliminates the progressive warping that limits PP rack service life under repeated sterilization\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eMicrobiology and sterility testing environments requiring guaranteed autoclave compatibility for all specimen-contact equipment without cycle count documentation caveats\u003c\/p\u003e\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eChemical biology labs where solvent and reagent exposure would degrade polymer racks — stainless resists the full range of organic solvents, acids, bases, and oxidizers used in bench chemistry\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eHow does stainless compare to PP for repeated autoclaving?\u003c\/strong\u003e\u003cbr\u003ePP racks are rated for 121°C cycles but accumulate warping over many cycles. Stainless racks are unaffected by any standard autoclave temperature and emerge from every cycle with identical geometry. For labs autoclaving daily, stainless racks pay back their price premium within the first year versus replacing PP racks as they degrade.\u003c\/p\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003e\u003cstrong\u003eWill 13mm tubes fit securely?\u003c\/strong\u003e\u003cbr\u003eYes. The positions are sized to accept both 12mm and 13mm OD tubes. 12mm tubes seat slightly deeper; 13mm tubes fill the position. Both are held securely at the Z-rack incline.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eQuality Assurance\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eGlobe Scientific products are manufactured under strict ISO 9001:2015 certified quality systems. Designed to meet the demanding requirements of clinical and research laboratories, these products undergo rigorous inspection to ensure consistent performance and reliability.\u003c\/p\u003e\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eAcademic and Institutional Pricing\u003c\/h2\u003e\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How does stainless compare to PP for repeated autoclaving?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"PP racks are rated for 121\\u00b0C cycles but accumulate warping over many cycles. Stainless racks are unaffected by any standard autoclave temperature and emerge from every cycle with identical geometry. For labs autoclaving daily, stainless racks pay back their price premium within the first year versus replacing PP racks as they degrade.\"}}, {\"@type\": \"Question\", \"name\": \"Will 13mm tubes fit securely?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The positions are sized to accept both 12mm and 13mm OD tubes. 12mm tubes seat slightly deeper; 13mm tubes fill the position. Both are held securely at the Z-rack incline.\"}}]}\n\u003c\/script\u003e","brand":"Globe Scientific","offers":[{"title":"25-Place","offer_id":48072009908456,"sku":"'457100","price":37.6,"currency_code":"USD","in_stock":true},{"title":"50-Place","offer_id":48072009941224,"sku":"457105","price":45.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/file_681e227b-caa7-45c4-8e76-2e39c97f2bbf.jpg?v=1771615393","url":"https:\/\/labsupplies.com\/products\/globe-scientific-ss-z-rack-12-13mm","provider":"LabSupplies.com","version":"1.0","type":"link"}