PTP Program

Distillers Dried Grain with Solubles

2024 Annual Fee:

Schedule: March, August
Sample amount distributed each test cycle: 3 samples - 300 g each

Reduced Price

Register for Multiple Programs

About The Program

ASTM International’s Distillers Dried Grain with Solubles Proficiency Testing Program provides laboratories with a statistical quality assurance (SQA) tool, enabling them to compare, improve, and maintain, a high level of performance in the use of test methods with other laboratories worldwide. The Distillers Dried Grains with Solubles program will provide three samples of distillers dried grains with solubles each cycle.

Conducted two times annually, this program provides a different commercial sample, electronic report forms, and test instructions for each test cycle. Your laboratory performs the test methods using the test methods cited in the program. All data and related information generated from the program is coded to maintain lab confidentiality.

Test instructions and data report forms are distributed electronically to each participant on the date samples are distributed. Labs have approximately 8 weeks to submit test data with the final statistical summary reports being electronically distributed in approximately 20 business days.

Why Should Your Laboratory Participate?

ASTM International's Proficiency Test Program provides you with:

  • A useful and meaningful statistical quality assurance tool to monitor the strengths and weaknesses of your laboratory's performance in conducting testing.

  • The resource you need to satisfy proficiency testing elements of laboratory accreditation.

  • A periodic comparison of test results with other participating laboratories.

Test Materials

Each participating lab will receive three samples of approximately 300 grams each of distillers dried grain with solubles. All three samples should be tested.

Test Parameters

Method ID Method Description
NFTA 2.1.4 Moisture
AOAC 990.03 and AOAC 2001.11 Crude Protein
AOAC 945.16 Crude Fat
AOAC 978.10 Crude Fiber
AOAC 2002.04 and ISO 16472 Amylase-treated Neutral Detergent Fiber (NDF)

AOAC 973.18

ISO 13906

Acid Detergent Fiber (ADF)
AOAC 942.05 and ISO 5984 Ash
AOAC 923.01 and ISO 27084 Sulfur
  Particle Size
  Color - L*, a*, and b*
  Water Activity
  Loose Bulk Density

AOAC 2005.08

AOCS Aa11-05

AOAC 991.31

AOCS Ab 7-91

AOAC 986.18

AOCS Aj 5a-97

AOCS Aj 2-86

ISO 17372

Rapid Test Kits


NOTE: List of tests subject to change.

Distribution Of Samples

Test samples are prepared and distributed for ASTM International by SGS North America in Deer Park, TX. Program registration fees include the cost of shipping the test samples to U.S. participants.

IMPORTANT for International participants: You have the following options for receipt of samples:

  • Ship through a third-party shipping agent - Provide ASTM International with the complete contact information of a designated Shipping Agent located in the U.S. who will be responsible for shipping samples from the U.S. to your facility. Participants are responsible for making financial and shipping arrangements directly with the shipping agent.

    • Please be advised that when samples are shipped, an e-mail is sent only to the contact of record on your ASTM PTP account. It is the customer’s responsibility to advise their designated shipper that the sample has been shipped.

    • We cannot permit shipping agents to pick up samples at our distributors’ warehouses.

  • Ship directly from the sample distributor via UPS, DHL, or FEDEX - Provide ASTM International with your shipping account number to cover shipping charges. Check that your carrier will deliver the test materials to your location. Materials classified as Hazardous may have restrictions.

    • You are responsible for additional fees charged-back to our distributor for any reason relative to your sample shipment including, but not limited to, fees for fuel surcharges, missing/invalid account numbers, dangerous goods, remote area delivery, and multiple delivery attempts.

Generic SDS

Program Requirements

Participation is on an annual fee basis and open to all laboratories. Registration fees must be paid in advance to participate. Testing must be performed within the participant's laboratory facilities. (All data and related information generated from the program is coded to maintain lab confidentiality.)

About Distillers Grain Technology Council

The DISTILLERS GRAIN TECHNOLOGY COUNCIL provides the technical direction for the program. Test information generated through the program is utilized by the Distillers Grain Technology Council to monitor the industry for testing performance. (All data and related information generated from the program is coded to maintain lab confidentiality.)

For Additional Information Please Contact:

Angelique Fontenot - +1-610-832-9748