Help: determination of starch gelatinized urea crude fiber

Hello everyone, who has done starch gelatinization urea crude fiber determination? Can you tell me what you need to pay attention to? I am now doing the feeling test value is on the high side, the composition is bran meal 50% urea 50%, after expansion processing, I now determine the crude fiber value of about 10%, I do not think it is possible, please advise, whether starch gelatinized urea crude fiber determined by the current national standard method will be on the high side? Lht8254 will add the following at 20:17 on 2009-2-20. Please help me! Top! I haven't done it. -- Oh, am I the first person? I can't! I didn't ask, but can't I use a cellulose tester? Sorry, the problem has been solved, the original bran meal mixed with rice bran, so the measured value of crude fiber is on the high side! Excuse me, lht8254, did you use the GB method to measure it? I'm going to test it, too! Have you explored a relatively simple and fast method? -- reply to the determination of crude fiber in dlq136 filter bag-- study by the way.