本标准按照污水(shui)排放去向，分年限规定(ding)了69种水(shui)污染物最高(gao)(gao)允许(xu)排放浓(nong)度及部分行业最高(gao)(gao)允许(xu)排水(shui)量。

范(fan)围：本标准(zhun)适(shi)用于现(xian)有单位水污染物的(de)排放管理，以及建设项(xiang)目的(de)环境(jing)(jing)影响评价、建设项(xiang)目环境(jing)(jing)保护(hu)设施设计、竣(jun)工验(yan)收(shou)及其投产(chan)后的(de)排放管理。

按照国(guo)家(jia)综合(he)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)与国(guo)家(jia)行(xing)(xing)(xing)业(ye)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)不交叉执(zhi)(zhi)行(xing)(xing)(xing)的(de)原则：造纸(zhi)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《造纸(zhi)工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB3544-92)》,船(chuan)舶(bo)执(zhi)(zhi)行(xing)(xing)(xing)《船(chuan)舶(bo)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB3552-83)》，船(chuan)舶(bo)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《船(chuan)舶(bo)工(gong)(gong)(gong)(gong)(gong)业(ye)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB4286-84）》，海洋石(shi)油开发工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《海洋石(shi)油开发工(gong)(gong)(gong)(gong)(gong)业(ye)含油污(wu)(wu)(wu)(wu)(wu)水(shui)(shui)(shui)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB4914-85)》，纺织染(ran)(ran)(ran)整工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《纺织染(ran)(ran)(ran)整工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB4287-92)》，肉类加(jia)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《肉类加(jia)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB13457-92)》，合(he)成氨(an)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《合(he)成氨(an)工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB13458-92)》，钢铁(tie)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《钢铁(tie)工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB13456-92)》，航天推进剂(ji)使用执(zhi)(zhi)行(xing)(xing)(xing)《航天推进剂(ji)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB14374-93)》，兵器(qi)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《兵器(qi)工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB14470.1～14470.3-93和GB4274～4279-84)》，磷肥工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《磷肥工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB15580-95)》，烧(shao)碱、聚氯乙烯(xi)工(gong)(gong)(gong)(gong)(gong)业(ye)执(zhi)(zhi)行(xing)(xing)(xing)《烧(shao)碱、聚氯乙烯(xi)工(gong)(gong)(gong)(gong)(gong)业(ye)水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)(GB15581-95)》，其他水(shui)(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)(ran)物(wu)(wu)(wu)排(pai)(pai)(pai)放均执(zhi)(zhi)行(xing)(xing)(xing)本标(biao)(biao)(biao)准(zhun)(zhun)(zhun)(zhun)。

本标准(zhun)颁布后，新增加(jia)国(guo)家行(xing)(xing)业(ye)(ye)水污染物排放(fang)标准(zhun)的(de)行(xing)(xing)业(ye)(ye)，按(an)其适用范围执行(xing)(xing)相应的(de)国(guo)家水污染物行(xing)(xing)业(ye)(ye)标准(zhun)，不再执行(xing)(xing)本标准(zhun)。