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The Rice Lake painted cast iron, grip handle test weight is available in metric and U.S. customary (also referred to as English and avoirdupois) and is designed for testing field standards and industrial devices. Painted cast iron weight has a chip-resistant paint that is corrosion-resistant and conforms to NIST Handbook 105-1 standards. The weight meets American Society for Testing and Materials (ASTM) E617, Class 7 specification for rough weighing operations in physical and chemical laboratories, and for force-measuring apparatus.
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.
T. Johnson
Reviewed in the United States on September 5, 2024
Works as expected,
JD
Reviewed in the United States on June 28, 2024
I needed something to fit in a unique space and this was perfect
Mommy2013
Reviewed in the United States on December 5, 2023
Needed to calibrate my tanita neonatal scale. This weight was not ten pounds. It was 9.15.9
mivec
Reviewed in Mexico on December 11, 2021
Muy bien fabricadas cumplen con lo descrito en su reseña!
damian marone
Reviewed in the United States on March 25, 2020
Used to calibrate a sensitive scale, perfectly weighted at 10lbs.
David Rosenfeld
Reviewed in Canada on January 23, 2020
Admittedly, this is not a mass market item (although its sole job in life is to define a given mass), but there are times when one needs a precision standard against which to calibrate a sensitive instrument, in my case, a kitchen scale, and this product is what I needed. It wouldn't have been that easy to source, either, but for the fact that Amazon, to its credit, tends to make available items to satisfy even the most obscure of needs.
Allen T.
Reviewed in the United States on August 1, 2019
Product is great but where is my calibration certificate?
Cindy
Reviewed in the United States on March 29, 2019
Solid, a must have
Cory W
Reviewed in the United States on July 9, 2016
Exactly 1lb. Perfect....checked on 4 different scales with various capacities.
Mando's World
Reviewed in the United States on November 2, 2015
Calibration Weight. It works. Scales pass inspection after calibrated with this. Sooo uhhh yeah. Shipping was fast and from a quick search this was priced right too.
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