Cart Shopping Cart My Store Account Orders Downloads Shopping Cart Remove item Thumbnail image Product Price Quantity Subtotal × 2409. Addressing Uncertainty in Weight Estimates $20.00 2409. Addressing Uncertainty in Weight Estimates quantity $20.00 × 288. Secondary Force Standards for the Calibrating Weighing Equipment $20.00 288. Secondary Force Standards for the Calibrating Weighing Equipment quantity $20.00 × 7. Predetermination of Weight Efficiency $20.00 7. Predetermination of Weight Efficiency quantity $20.00 Coupon: Apply coupon Update cart Available coupons (Click to apply). Cart totals Subtotal $60.00 Tax $0.00 Total $60.00 Proceed to checkout