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  • 商品名称: Water quality standard for drinking
  • 商品编号: 0095
  • 上架时间: 2014-11-28
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Water quality standard for drinking

1 Scope
This standard specifies the standard of water quality for drinking water purification.

This standard is applicable to meet the water quality standard of drinking water tap water or water as raw water, a pipeline through again after purification can be provided for users to directly drink straight water.

2 normative references
The clauses in the following documents become the standard reference by the clauses of this standard. Dated reference documents. During all subsequent amendments (excluding Corrigendum contents) or revisions do not apply to this standard, however, encourage the parties to reach an agreement on the new version according to the standard whether can use these files. Undated references, the latest edition is suitable for standard.

Water quality standards CJ/T 206-2005 City

GB 5750-1985 living standard examination methods for drinking water

3 water quality standard

The water quality of drinking water should not exceed the limits specified in table 1.

 

 

 

饮用水水质标准

 

项目

现值

 

感官性状

5

浑浊度

0.5NTU

臭和味

无异臭异味

肉眼可见物

 

 

 

 

 

 

一般化学指标

PH

6.0 ~8.5

总硬度(以CaCO3计)

300mg/L

0.20 mg/L

0.05 mg/L

1.0 mg/L

1.0 mg/L

0.20 mg/L

挥发性酚类(以苯酚计)

0.002 mg/L

阴离子合成洗涤剂

0.20 mg/L

硫酸盐

100 mg/L

氯化物

100 mg/L

溶解性总固体

500 mg/L

耗氧量(COD,以O2计)

2.0 mg/L

 

毒理学指标

 

 

 

 

氟化物

1.0 mg/L

硝酸盐氮(以N计)

10 mg/L

0.01 mg/L

0.01 mg/L

0.001 mg/L

0.003 mg/L

铬(六价)

0.05 mg/L

0.01 mg/L

银(采用载银活性炭时测定)

0.05 mg/L

 

 

毒理学指标

氯仿

0.03 mg/L

四氯化碳

0.002 mg/L

亚氯酸盐(采用CLO2消毒时测定)

0.70 mg/L

氯酸盐(采用CLO2消毒时测定)

0.70 mg/L

湨酸盐(采用O3消毒时测定)

0.01 mg/L

甲醛(采用O3消毒时测定)

0.90 mg/L

 

 

 

细菌学指标

细菌总数

50cfu/ml

总大肠菌群

100ml水样中不得检出

粪大肠菌群

100ml水样中不得检出

余氯

0.01 mg/L(管网末梢水)*

臭氧(采用O3消毒时测定)

0.01 mg/L(管网末梢水)*

二氧化氯(采用CLO2消毒时测定)

0.01mg/L(管网末梢水)*

0.02或余氯0.01mg/L(管网末梢水)*

 

注:表中带*的限值为该项目的检出限。实测浓度应不小于检出限。

 

 

 

4 water quality inspection

 

4.1 testing methods of water quality in accordance with GB5750-1985 standard examination methods for drinking water, drinking water health standards (2001) execution.

 

4.1.1 Ju acid and chlorate project detection according to CJ/T206-2005 implementation.

 

Detection of 4.1.2 ozone project should adopt the celadon blue three reagent. 

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