--- product_id: 161429522 title: "Rice Lake 12504 20 Piece Stainless Steel Calibration Metric Test Weight Set, 50g - 1mg Size, NIST Class F" brand: "rice lake" price: "1765.50 DT" currency: TND in_stock: true reviews_count: 3 url: https://www.desertcart.tn/products/161429522-rice-lake-12504-20-piece-stainless-steel-calibration-metric-test store_origin: TN region: Tunisia --- # Rice Lake 12504 20 Piece Stainless Steel Calibration Metric Test Weight Set, 50g - 1mg Size, NIST Class F **Brand:** rice lake **Price:** 1765.50 DT **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Rice Lake 12504 20 Piece Stainless Steel Calibration Metric Test Weight Set, 50g - 1mg Size, NIST Class F by rice lake - **How much does it cost?** 1765.50 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/161429522-rice-lake-12504-20-piece-stainless-steel-calibration-metric-test) ## Best For - rice lake enthusiasts ## Why This Product - Trusted rice lake brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Size Name:50g - 1mg  |  Unit Count:20 Product Description The Rice Lake metric, stainless steel test weight set meets National Institute of Standards and Technology (NIST) Class F specifications, and is designed for calibrating other weights, or electronic balances and scales. The weight set is constructed of stainless steel for stability, resistance to corrosion, and low magnetic susceptibility. The weight meets NIST Class F specifications for commercial "Legal-for-Trade" weighing operations often required by state and local weights and measures officials, device installers and service technicians. Class F weights can be used to test the accuracy of most Class III scales, all scales of Class III L or IIII, and scales not marked with a class designation. NIST Class F weights are manufactured to specifications of NIST HB-105-1. The set of 20 weights includes two each 20g, 2g, 200mg, 20mg, and 2mg weights, and one each 50g, 10g, 5g, 1g, 500mg, 100mg, 50mg, 10mg, 5mg, and 1mg weight, tweezers, and a protective case.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.Rice Lake Weighing Systems manufactures weight-related and process-control equipment for use in research, scientific, and quality control labs. The company, which was founded in 1946 and is headquartered in Rice Lake, WI, meets International Organization for Standardization (ISO) 9001:2008 standards, and is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) to ISO/IEC 17025:2005. What’s in the Box? Set of 20 NIST Class F calibration weights 50g 20g (2) 10g 5g 2g (2) 1g 500mg 200mg (2) 100mg 50mg 20mg (2) 10mg 5mg 2mg (2) 1mg Tweezers Protective case ## Features - Metric, NIST Class F calibration weight set for calibrating other weights, or electronic balances and scales - Stainless steel construction for stability, resistance to corrosion, and low magnetic susceptibility - Meets National Institute of Standards and Technology (NIST) Class F specification for commercial "Legal-for-Trade" weighing operations - Set of 20 weights includes two each 20g, 2g, 200mg, 20mg, and 2mg weights, and one each 50g, 10g, 5g, 1g, 500mg, 100mg, 50mg, 10mg, 5mg, and 1mg weight, tweezers, and a protective case ## Images ![Rice Lake 12504 20 Piece Stainless Steel Calibration Metric Test Weight Set, 50g - 1mg Size, NIST Class F - Image 1](https://images-na.ssl-images-amazon.com/images/I/31JB8-Q2wuL.jpg) ![Rice Lake 12504 20 Piece Stainless Steel Calibration Metric Test Weight Set, 50g - 1mg Size, NIST Class F - Image 2](https://images-na.ssl-images-amazon.com/images/I/51JtvpbBAqL.jpg) ## Available Options This product comes in different **Size, Unit Count** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Five Stars *by R***Y on 22 December 2014* Delivered when and as expected. ### ⭐⭐⭐⭐ Four Stars *by Q***N on 6 April 2016* Weights came as expected, however, the tweezers are missing. Calibration weights should never be touched by bare hands. ### ⭐⭐⭐⭐⭐ A good price for dead weight *by M***I on 22 January 2014* Not much to say about it. Weights come packaged nicely in a plasic case. Will work nicely in calibrating our digital scales. ## Frequently Bought Together - Rice Lake 12504 20 Piece Stainless Steel Calibration Metric Test Weight Set, 50g - 1mg Size, NIST Class F - QP 2000g Calibration Weights, OIML Class M1 High Precision Gram Weights, Stainless Steel Scale Calibration Weight for Digital Scale, Balance Scale, Chrome Finish Scale Weights with Storage Case - Fuzion Calibration Weights 60g Total, M1 Class 1g 2g 5g 10g 20g Stainless Steel Scale Calibration Weight Kit, Calibration Weight with Storage Box, Tweezers for Digital Scale Gram Scale Balance --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/161429522-rice-lake-12504-20-piece-stainless-steel-calibration-metric-test](https://www.desertcart.tn/products/161429522-rice-lake-12504-20-piece-stainless-steel-calibration-metric-test) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-24*