HOMEABOUT USFEEDBACKNEWSLETTERS Store Category Arts Crafts & Sewing Baby Beauty Camera & Photo Electronics Home & Kitchen Home Improvement Kitchen & Dining Office Products Toys Store Newsletter! Add my Shop to your Favourites and receive my email newsletters about new items and special promotions! General Interest Ohaus Stainless Steel ASTM Class 4 Precision Calibration Weight, NVLAP Certified, 100g Description The Ohaus metric, stainless steel precision calibration weight meets American Society for Testing and Materials (ASTM) Class 4 specifications, and is designed for use as a reference standard for calibrating other weights, or electronic balances and scales. The weight is constructed of stainless steel for stability, resistance to corrosion, and low magnetic susceptibility. A tapered neck enables the weight to be lifted with tweezers, reducing the risk of contaminants adhering to the weight. The weight meets ASTM E617, Class 4 specification for use as a reference standard for calibrating semi-analytic balances, and for student use. An optional National Voluntary Laboratory Accreditation Program (NVLAP) certificate ensures precision and traceability. The National Voluntary Laboratory Accreditation Program (NVLAP) accredits laboratories for compliance with ISO/IEC 17025 on the basis of their ability to meet the technical requirements set forth in NIST Handbook 150-2, and can provide accreditation to ANSI/NCSL Z540-1-1994. NVLAP calibrations and certifications meet all ISO, FDA, GMP, GLP, DOD, ANSI/NCSL Z540-1 and Nuclear requirements and are traceable to NIST. Procedures and processes used to generate this multi-page certificate, as well as its format and content, are prescribed by NVLAP. The document contains customer name & address, date of calibration, equipment and standards used in the calibration, accuracy class, true mass value (mass in a vacuum), “As Found” mass correction (for recalibration), “As Left” mass correction, uncertainty of measurement process (uncertainty to tolerance ratios are guaranteed), environmental conditions during test, construction and density of the weight, calibration procedure, and a statement of traceability to NIST. Mutual recognition arrangements include The International Laboratory Accreditation Cooperation (ILAC), The Asia Pacific Laboratory Accreditation Cooperation (APLAC) and The National Cooperation for Laboratory Accreditation (NACLA). Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight. Science education products incorporate applied math and science principles into classroom projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology. Ohaus manufactures scales and balances for laboratory, educational, retail, food, and jewelry applications. The company, founded in 1914, is headquartered in Parsippany, NJ. FEATURES Metric, ASTM Class 4 calibration weight for calibrating other weights, or electronic balances and scales Stainless steel construction for stability, resistance to corrosion, and low magnetic susceptibility Tapered neck for lifting weights with tweezers, reducing contamination Meets American Society for Testing and Materials (ASTM) E617, Class 4 specification for use as a reference standard for calibrating semi-analytic balances, and for student use Optional NVLAP certificate ensures precision and traceability SPECIFICATIONS Manufacturer: Ohaus Shipping Weight: 50 Product Dimensions: width: 4.50 length: 9.30 depth: 3.80 SHIPPING TERMS Depending on your location and on package weight, items will be shipped by FedEx USPS or UPS. We usually ship within 24 hours of processing the payment. We are extremely fast. The free shipping is for 3-5 business days, for 2-day shipping you will need to add $0.99, and for overnight service you will need to add $16.95. Please note that there is also an extra 2 day handling time (or less), so even if you choose overnight, the delivery time could be up to 3 days RETURN & REFUND POLICY Items returned must be received within 30 days from purchase. No refund or replacement is issued after this period of time. You can choose between returning for a refund or for an exchange of the item. The package of the returned items must be completely intact, all the accessory’s inside the package must be original and in perfect condition in order to receive a full refund. It takes up to 7 working days for the return to be processed after it is received by us. YOUR SATISFACTION We love our buyers and we want them to shop with us again, so even in the rare event of something out of the ordinary is happening, we will make the best we can to find a solution. We offer a 100% Satisfaction Guarantee on all sales. If you are not happy with your purchase for any reason, please contact us within seven days of receipt of your item, or email us to share your concerns. As mentioned before we are extremely fair and will happily work with you to find a solution to any problem. As you can tell from our feedback, pretty much every single one of our customers is a happy one. So in the rare case something does go wrong, before leaving a negative feedback, contact us so we can help you and make things right! All of Our products are a 100% authentic and all brand new ABOUT US We sell on eBay since 2010. We are based in the USA and ship from our own warehouses. We work with the biggest suppliers in the US to bring you the best quality items you can get and we do it FAST. Why ask us? You can check our feedbacks they speak for themselves. Try Us You Won’t Regret janes online shop
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