The South Dakota State Metrology Laboratory serves as the basis for providing equity in the marketplace. The Laboratory maintains custody and safekeeping of the South Dakota Primary Standards of mass and volume and provides measurement services for enforcement of weights and measures regulations by testing and calibrating all working standards used by State Inspection staff. The Lab also provides calibration services for service agencies that install and calibrate scales and liquid measuring devices used in retail throughout the state.

The integrity, stability, and adequacy of the laboratory's standards and equipment are monitored through continuous surveillance and evaluated and audited by the National Institute of Standards and Technology annually. Compliance with the National Institute of Standards and Technology criteria is indicated by a NIST Certificate of Metrological Traceability that recognizes the laboratory as having the required quality system, facilities, standards, and staff to provide accurate measurement services traceable to the International System of Units (SI) through national standards. For questions or to schedule a calibration, contact us or call (605) 347-7641.

The lab is currently recognized by NIST to perform calibrations in the following areas:

Metrology Lab Calibrations Areas

MASS ECHELON II	MASS ECHELON III	VOLUME TRANSFER ECHELON II
5 kg to 1 mg 10 lb to 0.001 lb 8 oz to 0.03125 oz	30 kg to 1 mg 1,000 lb to 0.001 lb 8 oz to 0.03125 oz Weight Cars 2,000 lb to 5,000 lb Railroad Test Cars 6,000 to 10,000 lb	1,500 gallons to 5 gallons 100 gallons to 25 gallons LPG

 

Scheduling & Fees

Calibration services must be scheduled, usually one to two months in advance. Small quantities and singular items can normally be worked into the schedule with less notice. The lab's goal is to turn around items within the same week they are received.

All standards delivered to the metrology laboratory must be clean, painted (where necessary) and in good repair. Cleaning and/or repair of standards in the metrology laboratory will add considerably to the calibration cost.

The metrology lab fee is $96.00/hour. See inspection fees for more information.

Standards

MASS STANDARDS

VOLUMETRIC STANDARDS

Cast iron weights should be free of rust, loose paint and adhering debris. Cast iron weights should be painted with a light coat of paint (aluminum for avoirdupois and gold for metric weights). Do not use epoxy or enamel paints. Stainless steel weights can be wiped down with an ethanol-dampened rag. If “as found” values are desired before painting, two tests may be required. In this case, contact the laboratory prior to cleaning and painting.

Volume field test measures must be cleaned inside and out with a mild detergent. Make sure the glass gauge tube is clean, and the gauge scale plate is readable. Provers and test measures cannot be tested if they are received with leaks, large dents, or badly corroded interiors.

 

Shipping

It is the customer's responsibility to arrange shipment of their standards to and from the laboratory. Large items shipped by commercial trucking must use pallets. You must call in advance with an expected arrival date and time to ensure our staff will be available to receive your standards. Small individual items packed in shipping boxes should be wrapped well or protected with appropriate packing materials. Foam peanuts are not acceptable. Small weight kits should be secured to prevent opening during shipment.

 

Items can be shipped to:

State Metrology Laboratory
1100 Otter Road, Bldg D
Sturgis, SD 57785

 

 

NVLAP Lab Code 600384-0

In December 2024, South Dakota's Metrology Lab received NVLAP (National Voluntary Laboratory Accreditation Program) accreditation. 
The documents below will be moved to your Downloads folder when you click on them -- look for them there.

• View the Accreditation Certificate
• View Scope of Accreditation

The National Institute of Standards and Technology (NIST) administers the National Voluntary Laboratory Accreditation Program (NVLAP). NVLAP provides accreditation services through various laboratory accreditation programs (LAPs), which are established on the basis of requests and demonstrated need. Each LAP includes specific test or calibration standards and related methods and protocols assembled to satisfy the unique needs for accreditation in a field of testing or calibration. NVLAP accredits public and private laboratories based on evaluation of their technical qualifications and competence to carry out specific calibrations or tests.

This is a significant achievement for the South Dakota Metrology Lab and the State of South Dakota!