Rheologic Control Compound for Rheometer
Statistical process control is a fundamental key to success in today's high precision, high volume, continuous process production in the rubber and plastics industries. Iinstrument calibration to standard references with continual monitoring is the key to statistical process control. Without it, keeping your production on-line and on-spec is nearly impossible.

Akron Rubber Development Laboratory, Inc. (ARDL) is the source for your lab's vital control material - a standard compound for Rheometer process control. This product, a certified SBR compound chosen for its reproducibility, is produced by ARDL under carefully controlled and monitored conditions. This reference material is available with certified characteristics. The following results are typical: (See note 1)

Test Parameter Variance 2 Std. Dev.

Rheometer Data
Minimum Torque, in × lbs 0.01 in.lbs 0.22 in.lbs
Maximum Torque, in × lbs 0.85 in.lbs 1.84 in.lbs
Ts2, minutes 0.001 minutes 0.08 minutes
tc90%, minutes 0.008 minutes 0.18 minutes

This material is available for overnight delivery to your laboratory. Because it is a control compound and must be maintained under specific conditions, shipment will only be made against your firm's purchase order by overnight courier.

(1) Actual results for one batch of control compound by ARDL. Variance and Standard Deviation data for the current batch will be supplied with your order. Actual results may vary.

(2) Rheometer: ODR: 177°C, 3 Arc, 12 minute motor, 100 range.

Production
ARDL will produce this material in accordance with ASTM standard production and process controls. All raw materials will be certified to ASTM standards and to manufacturers' specifications. All production will be on certified and calibrated equipment by trained and certified technicians, under the direct supervision and control of ARDL .

Ordering
This material is available in quantities of 2 and 5 pounds. All shipments will be made in protected and sealed containers via overnight courier only. The following prices shall apply for all shipments in the contiguous United States and Canada:

Pricing
$125.00 USD/2 lbs
$200.00 USD/5 lbs
For shipment outside the contiguous USA or Canada, please contact ARDL .
*Shipping charges will be added to all orders

Storage
This material must be maintained at below freezing temperatures (32°F or 0°C maximum) at all times. Failure to maintain the material at below freezing temperatures may render the material unsuitable for reference use and reduce its shelf life significantly.

Usage
The standard reference compound should be warmed slowly, under ambient conditions, for 8-24 hours prior to use. Keep wrapped during warm-up to prevent condensation from forming and causing moisture absorption. ARDL recommends using the control compound for each Rheometer a minimum of once per day for routine laboratory operations and once per shift for continuous, 24-hour operations. THE CONTROL COMPOUND SHOULD NOT BE USED AFTER THREE (3) MONTHS.

Warranty and Certification
ARDL certifies that this reference compound, when properly stored and used, will exhibit reproducible results as illustrated on the front page. ARDL makes no other warranty, either stated or implied.