Rice Lake Grip Handle and Nesting Slab Weights are primarily used to test commercial weighing devices by state and local weights and measures officials, device installers and service technicians. Choose from Class F, 7 and M1 weights.
All weights are traceable to the International System of Units (SI) through National Institute of Standards and Technology (NIST). To verify adherence to class tolerances, optional traceable certificates are available. Weights are manufactured to one of the following specifications: ASTM E 617, NIST Handbook 105-1, or OIML R111.
Rice Lake’s traceable certificates provide the following documentation:
Traceability to NIST
Weight class: ASTM 4-7, NIST F, OIML M1, M2, M3
Environmental conditions present at time of calibration
Test location (Rice Lake Weighing Systems, an accredited laboratory)
Rice Lake Weighing Systems ISO 9001 registration
All requirements for the National Voluntary Laboratory Accreditation Program (NVLAP), ISO/IEC 17025:2017 and ANS/NCSL 2540-1
Class F – Cast iron Class F grip-handle weights may be used to test most accuracy Class III scales, all scales of Class III L or IIII, and scales not marked with a Class designation. Class F is also acceptable for verifying scales that have a 0.1% accuracy and lower. Cast iron Class F grip-handle weights larger than 5 kg (10 lb) are Legal for Trade.
Metric Cast Iron Class F
Avoirdupois Cast Iron Class F
Class 7 – Class 7 are weights that do not meet the Class F specification in design; however, ASTM tolerances are met.
Metric Cast Iron Class 7
Avoirdupois Cast Iron Class 7
Metric Cast Iron Class M1 – Economical weights for general laboratory, industrial, commercial, technical and educational use.
Please allow 1 business day for a representative from Nicol Scales & Measurement to contact you. If your need is urgent, or if it’s after normal business hours, please call our local branch for service.