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4.0 of 5.0 with 25 Reviews
SALE PRICE: $94.48
Manufacturer: Ohaus
Brand: Ohaus
Model: 80781110
Manufacturer: Ohaus
Brand: Ohaus
Model: 80781110
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The Ohaus metric, stainless steel, leaf-style, milligram precision calibration weight meets American Society for Testing and Materials (ASTM) Class 1 specifications, and is designed for calibrating other weights, or electronic balances and scales. The leaf-style weight has a turned-up end for lifting with tweezers and reducing handling and the risk of contamination or damage. It is constructed of stainless steel for stability, resistance to corrosion, and low magnetic susceptibility. The weight meets ASTM E617, Class 1 specification for use as a reference standard for calibrating other weights and high-precision balances with readabilities as low as 0.1mg to 0.01mg. 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 Ac...
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4.0 of 5.0 with 3 Reviews
SALE PRICE: $94.48
Manufacturer: Ohaus
Brand: Ohaus
Model: 80780346
Manufacturer: Ohaus
Brand: Ohaus
Model: 80780346
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The Ohaus metric, stainless steel calibration weight meets International Organization of Legal Metrology (OIML) Class F1 specifications and designed 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. The weight meets OIML R111 Class F1 specifications for use calibrating high-precision top loading balances with a readability as low as 0.01g to 0.001g.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. Certi...
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4.0 of 5.0 with 14 Reviews
SALE PRICE: $95.56 8% OFF
Manufacturer: Troemner
Brand: Troemner
Manufacturer: Troemner
Brand: Troemner
Weight, Individual, Stainless Steel 2g weight, stainless steel, OIML style, calibrated to OIML Class F1. Weight is provided in a polypropylene case. Supplied with Troemner's NIST/NVLAP Weight Calibration Certificate. This listing is for Each _DELETE_
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4.0 of 5.0 with 49 Reviews
SALE PRICE: $99.95
Manufacturer: United Scientific Supplies
Brand: United Scientific Supplies
Model: WHSET9
Manufacturer: United Scientific Supplies
Brand: United Scientific Supplies
Model: WHSET9
These weights feature flat countersunk bottoms, with a doubleended hooked rod through the middle. They can be used on balance pans, as well as hooked in tandem for lever arm studies. Set of 9 weights consisting of 1 each 10g, 50g, 100g, 500g,1,000g, and 2 each 20g, 200 gram weights. Weights are made of polished brass and come in a storage block. Replacement weights are available separately.
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4.0 of 5.0 with 3 Reviews
SALE PRICE: $103.95 2% OFF
Manufacturer: Rice Lake
Brand: Rice Lake
Manufacturer: Rice Lake
Brand: Rice Lake
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The Rice Lake 1,000g American Society for Testing and Materials (ASTM) Class 4 metric calibration weight is designed 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. The set includes a 1,000g mass, a handling glove, and a protective case. The weight meets ASTM E617, Class 4 specification for use as a reference standard for calibrating semi-analytic balances, and for student use.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 ...
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4.0 of 5.0 with 38 Reviews
SALE PRICE: $104.68 3% OFF
Manufacturer: EISCO
Brand: EISCO
Manufacturer: EISCO
Brand: EISCO
A classic tool used in any lab or classroom. This 9 piece brass weight set with wooden block holder will last for decades of use due to its high integrity instruction and quality brass material.
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4.0 of 5.0 with 1 Reviews
SALE PRICE: $117.21 4% OFF
Manufacturer: Mettler Toledo
Brand: Mettler Toledo
Model: 11123484
Manufacturer: Mettler Toledo
Brand: Mettler Toledo
Model: 11123484
Mettler Toledo ASTM knob weights are designed to resist dust and moisture intrusion offering long term stability. These are ASTM class 1 analytical individual weights. These weights are manufactured under Mettler Toledo's stringent ISO9001 quality management system.
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4.0 of 5.0 with 33 Reviews
SALE PRICE: $121.45
Manufacturer: Ohaus
Brand: Ohaus
Model: 80850287
Manufacturer: Ohaus
Brand: Ohaus
Model: 80850287
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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 we...
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4.0 of 5.0 with 29 Reviews
SALE PRICE: $134.30 28% OFF
Manufacturer: Rice Lake
Brand: Rice Lake
Manufacturer: Rice Lake
Brand: Rice Lake
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The Rice Lake metric stainless steel precision test weight meets American Society for Testing and Materials (ASTM) Class 4 specifications, has a 7.95 density, and is designed for a variety of weighing operations. The weight can be adjusted by attaching other weights to the screw-knob. The weight is constructed of stainless steel for stability, resistance to corrosion, and low magnetic susceptibility. The set includes a precision test weight, a handling glove, and a protective case. The weight meets ASTM E617, Class 4 specification for use as a reference standard for calibrating semi-analytic balances, and for student use.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...
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4.0 of 5.0 with 45 Reviews
SALE PRICE: $136.05 36% OFF
Manufacturer: Mettler Toledo
Brand: Mettler Toledo
Model: 11123485
Manufacturer: Mettler Toledo
Brand: Mettler Toledo
Model: 11123485
Mettler Toledo ASTM knob weights are designed to resist dust and moisture intrusion offering long term stability. These are ASTM class 1 analytical individual weights. These weights are manufactured under Mettler Toledo's stringent ISO9001 quality management system.
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