CREATE TABLE table_204_229 (id NUMBER, "property" CLOB, "test method" CLOB, "units" CLOB, "4275" CLOB, "4301" CLOB, "4435" CLOB, "4630" CLOB, "4645" CLOB)

what are the number of times astm d 638 is listed as the test method ?
SELECT COUNT(*) FROM table_204_229 WHERE "test method" = 'astm d 638'
SELECT COUNT(*) FROM "table_204_229" WHERE "test method" = 'astm d 638'