QCVN 13-MT:2015-BTNMT (Replace QCVN 13:2008-BTNMT) Facebook twitter google linkedin National technical regulation on the effluent of textile industry QCVN-13-MT.2015-BTNMT.pdf related article QCVN 14:2008-BTNMT QCVN 01-MT:2015-BTNMT QCVN 11-MT:2015-BTNMT (Replace QCVN 11:2008-BTNMT)