... sample, and determine the weight to obtains he crude fiber content, the test results are in line ... /T5515 and GB/T6434. It is applicable for crude fiber content determination of all kinds of feed, ... 1.Sample quantity: 6 / times;2.Repeatability error: crude fiber content of 10% or less, the absolute error ... of ≤ 0.4; crude fibercontent of more than 10% ,relative error ≤ 4%. ...