NSF42e中文版.docx

NSF42e中文版.docx

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NSF42e中文版

NSF/ANSI42–2005

饮用水处理设备–

审美效果

NSF国际标准/

美国国家标准

iv

前言................................................................................................................................................................................vii

1大纲..............................................................................................................................................................................1

1.1宗旨..........................................................................................................................................................................1

1.2范围........................................................................................................................................................................1

1.3替代材料、设计和建筑.....................................................................................................................................................1

1.4降低化学和机械性能要求...............................................................................................................................................1

1.5最低要求.............................................................................................................................................................................2

2参考标准....................................................................................................................................................................2

3定义........................................................................................................................................................................................3

4材料........................................................................................................................................................................................6

4.1接触饮用水的材料.............................................................................................................................................................6

4.2材料评估.............................................................................................................................................................................7

表1–萃取测试参数..............................................................................................................................................................8

表2–依据分子式萃取测试参数........................................................................................................................................10

表3–美国联邦环境保护法令中列出的材料.......................................................................................................................12

表21-不需要配方审查........................................................................................................................................................12

表4–非特定的萃取测试参数................................................................................................................................................13

5结构性能...............................................................................................................................................................................14

5.1结构的整体性....................................................................................................................................................................14

5.2接受....................................................................................................................................................................................14

5.3工作压力............................................................................................................................................................................14

5.4结构整体性测试方法......................................................................................................................................................14

表5–结构整体性测试要求.................................................................................................................................................18

6最小性能要求.......................................................................................................................................................................19

6.1原理....................................................................................................................................................................................19

6.2下水管道连接....................................................................................................................................................................19

6.3产出水出水口....................................................................................................................................................................19

6.4伤害........................………………………………………………………………………………………………........20

6.5工作温度............................................................................................................................................................................20

6.6电气安全和操作................................................................................................................................................................20

6.7额定工作流量...................................................................................................................................................................20

6.8额定压力下降...................................................................................................................................................................20

6.9最小工作流量.....................................................................................................................................................................20

表6–最小工作流量...........................................................................................................................................................21

6.10活化剂和添加剂.............................................................................................................................................................21

6.11介质……………………………………………………………………………………………………………………22

7可选测试要求的强制性测试...............................................................................................................................................22

7.1一般要求..........................................................................................................................................................................22

7.2抑菌性能..........................................................................................................................................................................24

7.3化学还原测试....................................................................................................................................................................25

表8–减少氯胺的要求..........................................................................................................................................................28

表9–减少氯..........................................................................................................................................................................32

表10–减少硫化氢和苯酚的要求........................................................................................................................................34

表11–减少铁、锰的要求....................................................................................................................................................36

表12–调节pH值的要求.....................................................................................................................................................38

表13–减少锌的要求..........................................................................................................................................................40

7.4机械还原测试...................................................................................................................................................................42

v

表14–极微颗粒减少（85%）种类....................................................................................................................................42

表15–极微颗粒减少所需测试灰尘规格（85%）.............................................................................................................43

7.5水垢控制测试..................................................................................................................................................................44

表16–用于控制水垢的添加剂............................................................................................................................................44

8说明和信息.........................................................................................................................................................................45

8.1安装、操作和维护说明..................................................................................................................................................45

8.2参数标牌..........................................................................................................................................................................46

8.3可更换部件......................................................................................................................................................................48

8.4运行数据表......................................................................................................................................................................48

表17–运行数据表减少要求.............................................................................................................................................50

表18–运行数据表减少要求.............................................................................................