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Fiber (Crude) Test

  • 61 per analysis
  • |
  • 12-15 business days
  • |
  • Rush Available
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Fiber (Crude) Test

Technical data sheet


Method description

This method determines crude fiber which is the organic residue remaining after digesting with 0.127M H2SO4 and 0.313M NaOH.  The compounds removed are predominantly protein, sugar, starch, lipids, and portions of both the structural carbohydrates and lignin.

Acceptable matrices

Feeds, flour, forages, cereal, grain, dry dog food, parmesan cheese

Unacceptable matrices

Samples that have particle sizes <25 microns, liquids

Limit of quantitation



Ankom A2000, balance, drying oven, muffle furnace

Method reference

Please contact Medallion Labs

Reportable unit


Sample size requirements

100 grams

Information required by submitter

Sample description, processing if applicable, estimate

*Prices and offerings are subject to change without notice.

Common Fiber (Crude) Test Testing Questions

While our sales and customer service team are happy to answer general testing questions, consultations typically start at a rate of $250 per 30 minutes regarding the interpretation of reported test results or questions about our test methods. We cannot consult on regulations, tolerance limits, or claims.

We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.

Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.

Medallion Labs, a division of General Mills, offers multiple areas of expertise for analytical testing and product evaluation for the food and ingredient industry. Our areas of expertise include Chemical Analysis, Nutritional Analysis, Food Safety, Shelf Life Studies, Microbiology, Specialty Fibers, Physical Testing, Allergen Testing, as well as Product Evaluation (which includes Product Performance and Sensory Evaluation) and Technical Consulting/Method Development. Our methods are developed for the testing of food products and ingredients.

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Medallion Labs

A food testing program designed with mid-market and enterprise food and ingredient manufacturers in mind.