0000950136-04-001221 10-Q 5 20040331 20040421 BHA GROUP INC 0000801128 3564 431416730 DE 0930 10-Q 34 000-15045 04744269 8800 E 63RD ST KANSAS CITY MO 64133 8163568400 8800 E 63RD STREET KANSAS CITY MO 64133 10-Q 1 file001.txt QUARTERLY REPORT EX-31.1 3 file002.txt CERTIFICATIONS EX-31.2 4 file003.txt CERTIFICATION EX-32.1 5 file004.txt CERTIFICATION EX-32.2 6 file005.txt CERTIFICATION