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    Calibration Weight Sets for Calibrating Scales

    Test Weights

    We have been supplying high-quality precision measurement products and services for over 35 years. The combination of being able to provide you with access to world class manufacturing technology, an experienced staff of professionals, and a commitment to total quality enables us at Central Carolina Scale to provide you with the best choices available for your precision calibration test weights. Our suppliers manufacturer calibration weight sets for testing and calibrating scales, including ASTM, OIML, and NIST classes, which are ideal for balances and scales. We are also able to provide quotes for special design weights, weight kits, and weight cases. Our precision weights are designed specifically to assist you with ISO 9000 traceability requirements.

     

    Balance and Scale Test Weights

    Precision Calibration Test Weights


    Calibration weights, including all ASTM, OIML, and NBS classes, for balances and scales. We also provide special design weights, weight kits, and weight cases.

    Our precision weights are designed specifically to assist you with ISO 9000 traceability requirements.

     

       
    Frequently Asked Questions about Weights & Certification
    Need Certification for your weights?
    What's a Certificate of Accuracy?
    What's a Traceable Certificate?
    What's traceability?
    Additional Reference Info
    What Tolerance is NIST F?
    What class weight do I need?
    So I need ASTM, what class?

     

    Technology, Experience, Commitment...
    Central Carolina Scale offers Rice Lake Weighing Systems calibration weights. RLWS has been supplying high-quality precision measurement products and services for over 35 years. The combination of world class manufacturing technology, an experienced staff of professionals, and a commitment to total quality enables Rice Lake Weighing to lead the industry in attaining a variety of quality certifications including ISO 9000 and ISO/IEC 17025.
    Rice Lake Weighing Systems, an ISO 9001-registered company, has been a leader in the industrial scale and process-control weighing industry for 50 years. RLWS design, manufacture, and distributes the largest selection of load cells, weigh modules, and advanced instrumentation---over 20,000 products---to meet virtually every weighing requirement. Rice Lake also manufactures precision calibration weights, including all ASTM, OIML, and NBS classes for balances and scales. Traceable and Calibration Certificates are available with every weight as well. The state-of-the-art metrology lab is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) and provides quality weight services, including recalibration and refurbishing of existing weights.


    Technology
    • State of the art precision machining facility manufactures a full line of premier standards which conform to NIST, ANSI/ASTM and OIML.

    Experience
    • Calibration technicians use primary and secondary mass standards directly traceable to NIST.
    • Weighing instruments and mass standards in Rice Lake's three metrology labs are meticulously maintained in accordance with ANSI/NCSL Z540-1.

    Commitment
    • Strict adherence to exacting standards of quality, and an unequaled dedication to customer service means products and services will be right the first time, every time.

    Rice Lake Weighing holds membership and participates in National Voluntary Laboratory Accreditation Program (Accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) for the specific scope of accreditation under Lab Code 105001-0, NIST Mass Measurement Assurance Program Mid American Measurement Assurance Program, National Conference of Standards Laboratories, National Conference of Weights and Measures and NVLAP ISO/IEC 17025 (Replaces Guide 25). Expanded laboratory capabilities will accommodate the very highest level of precision OIML Class E1. Many pharmaceutical companies, chemical labs and calibration houses require the E1 tolerance for their calibration standards. In order to supply customers with the necessary precision, Rice Lake invested in additional equipment to meet regulatory and uncertainty guidelines. Rice Lake provides customers with an industry leading four-day turnaround on all weight re-certifications, including Class E1 weights up to 10kg. Additionally, they now manufacture and certify Class E1 weights from 1mg to 5kg, purchased individually in kits, or as sets that include multiple weights in 5-2-2-1 configuration.

     

    Precision Calibration Weight Catalog

    Below you will find our test weights in pdf files including prices and certificate prices. This includes precision calibration weights, including all ASTM, OIML, and NIST classes, for balances and scales. We also provide special design weights, weight kits, and weight cases. Our precision calibration weights are designed specifically to assist you with ISO 9000 traceability requirements. (please note some prices may vary due to recent increases) Rice Lake offers cast iron weights and three (3) different designs of stainless steel weights. Due to varying configurations, the actual appearance of your product may be slightly different than shown on the catalog page. Serial numbers are available for an additional charge when ordered without laboratory documentation. Individual leaf weights should be ordered with protective vial (individual leaf weights are for custom-designed kits)

    Rice Lake offers several configurations for their weight sets. Class F weights have many set configurations to assist in calibration of scales; higher accuracy sets are available in 5-2-2-1 and 5-3-2-1. A standard set would be as follows:

    5-2-2-1 – (1) 50g, (2) 20g, and (1) 10g
    5-3-2-1 – (1) 50g, (1) 30g, (1) 20g, and (1) 10g

    Custom sets are available as build to order to meet your specific requirements. Each weight set consists of the weights, case and / or small weight case (as appropriate).

    Cylindrical Stainless Steel Weight Sets - (MOST POPULAR WEIGHT KITS)

     

    NIST Weight Sets (pdf file) NIST

     
    Precision Laboratory Stainless Steel Weights

     

    NIST Weights (pdf file) - MOST POPULAR INDIVIDUAL S.S. WEIGHTSIndividual Mass

     
    ASTM Weights & ASTM Hook Weights (pdf file)

    OIML Weights (pdf file)

     

     

    Precision Laboratory Stainless Steel Weight Sets

    ASTM Weight Sets (pdf file)

    OIML Weight Sets (pdf file) Weight Kit

     
     
    Cast Iron Weights (MOST POPULAR INDIVIDUAL WEIGHTS)
    Cast Iron Weights (pdf file) CAST Iron
     
    Slotted Weights & Hangers / Counterpoise Weights & Hangers

     

    Slotted Weights and Hangers interlockinghanger
    Counterpoise Weights and Hangers
    (pdf file)

     

     

     
    Weight Accessories

    Sealing Plugs
    Replacement Weight Cases
    Transfer Carts
    Handling Equipment
    Gloves
    Balance Tables
    (pdf file)

     

    Precision Solutions (pdf files)

     

    What kind of certification requirements do you need for your calibration weights?

    Cert of Accuracy? .............. Traceability?

     

     

    • weight-cast-iron-grip-handle-large-capacity.jpg
      Cast Iron Calibration Test Weights (Large Capacity) Large Capacity Cast Iron Scale Calibration Test Weights, NIST Class F includes 100 lb Avoirdupois Grip Handle Weights, 200 lb, 250 lb Avoirdupois Heavy Capacity Grip Handle 500 lb, 1000 lb, 1500 lb, 2000 lb, 2500 lb, 3000 lb Avoirdupois Heavy Capacity Grip Handle and more.
    • weight-cast-iron-grip-handle-calibration-test.jpg
      Cast Iron Calibration Test Weights (Small Capacity)Cast Iron Scale Calibration Test Weights includes ASTM Class 7 Smaller Capacity Cast Iron Test Weights: 1 lb, 2 lb, 5 lb, 10 lb and NIST Class F 20 lb, 25 lb, 30 lb, 50 lb, 100 lb. KG weights also available including: 500g, 1 kg, 2 kg, 5 kg, 10 kg, 20 kg, 25 kg, 35 kg, 35 kg, 50 kg and more.
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