检测校区饮用水安全

1、生活饮用水水质常规22项   执行标准：GB5750-2006

饮用水检测项目 ：                                        标准值

1.色度（铂钴色度单位），度                                  <15

2.臭和味                                               无异臭 异味

3.肉眼可见物                                               无

4.浑浊度（散射浊度单位），度                                <3

5.PH值                                                   6.5-8.5

6.总硬度（以caco3计），mg/L                                <450

7.溶解性总固体，mg/L                                       <1000

8.耗氧量，mg/L                                             <3

9.电导率，us/cm                                            <2000

10.碱度，mg/L

11.氯化物，mg/L                                            <250

12.氨氮，mg/L                                              <0.5

13.亚硝酸盐，mg/L                                          <0.5

14.游离氯                                                  <5.0

（理化部分）

检测项目：

15.铅，mg/L                                                <0.01

16.汞，mg/L                                                <0.001

17.铬（六价），mg/L                                         <0.05

18.镉，mg/L                                                < 0.005

19.氟化物，mg/L                                            <1.0

20.细菌总数，CFU/ml                                        <100

21.总大肠菌群,MPN/100ml                                    不得检出

22.耐热大肠菌群,MPN/100ml                                  不得检出