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Laboratory Water Purification System Selection Form

03/01/2021 Yuhai


This is to describe the types of purified water and how to select the right model of your Laboratory water purification system

There are two steps to follow for your easier selection of suitable water purification system for your intended research. Firstly, you need to decide what is the water quality required in your research or experiment. Secondly, you need to decide the functinality, capacity, installation and other specification related to machine itself. By these two steps you will find a suitable machine specificly for your purpose and fulfill your requirment. 

STEP 1.

The below is the form to introduce the water quality classification according to ASTM standard.

ASTM Type I, II and III, IV Water Specifications

 

 

Type I

Type II

Type III

Type IV

Electrical conductivity, max, S/cm

0.056

1.0

0.25

5.0

Electrical resistivity, min

18

1.0

4.0

0.2

pH

*

*

*

5.0 to 8.0

Total organic carbon (TOC), max, g/L

50

50

200

no limit

Sodium, max, g/L

1

5

10

50

Chlorides, max, g/L

1

5

10

50

Total silica, max, g/L

3

3

500

no limit


Bacterial contamination

When bacteria levels need to be controlled, reagent grade types should be further classified as follows:

   

Type A

Type B

Type C

Maximum heterotrophic bacteria count

 

10/1000 mL

10/100 mL

100/10 mL

Endotoxin, EU/mlB

 

0.03

0.25

not applicable

 

STEP 2.

After the water type slected from the first step, the second step provides more details regarding the options of the water purification machines.

You may choose the output capacity, water source, functionality and so on. By clicking on the madel name you will be redirect to the webpage of that specific product.

                       

 

Series

Basic-Q/-IT

Smart-RO

Smart-Q

Smart-S

Smart-D

Eco-Q

Eco-S

Master-Q

Master-S

Master-D

Master touch-Q

Master touch-S

Master touch-D

Edi-Q

Edi-S

 

 

 

Dura 12/24

Dura

 

Super 10

Super-TOC10

Medium-RO

Medium-Q

Medium-S

Medium-1600RO

Medium-1600Q

Medium-1600S

Center ultrapure water

Center Deionized Water

Center-EDI ultrapure water

Center-EDI Deionized water

 

Central

Output

(liter/hour)

 

15, 30

15, 30

1-2.0L/min

15, 30

15, 30

1-2.0L/min

10

12, 24

1-2.0L/min

10

45, 63

94, 125

250

45, 60, 90

250, 500

RO process

1st stage

1st stage

1st stage

1st stage

1st stage

2nd stage

2nd stage

1st stage

1st stage

2nd stage

2nd stage

Source water   

Tap 

Tap,

Type III or II

Tap 

Tap,

Type III or II

Tap

Tap,

Type III or II

Tap

Tap

Tap

Tap

Tap

Water quality

Type III, II

Type III, II, I   

Type III, II, I   

Type III, II, I   

Type III, II, I   

Type II, I        

Type II, I        

Type III, II, I   

 

Type III, II, I   

 

Type III, II, I   

Type III, II

Sensor

NO

1

2

3

3

3

4

1 (RO)

3 (Q,S)

1 (RO)

3 (Q,S)

3

3

Flow Sensor

NO

NO

NO

2 (touch)

2 (touch)

NO

3

NO

NO

2

6

Touch Screen

NO

NO

NO

YES

(touch)

YES

(touch)

NO

YES

NO

NO

YES

YES

EDI Module

NO

NO

NO

NO

YES

NO

YES

NO

NO

YES (EDI)

YES

TOC Module

NO

NO

NO

NO

NO

Optional

YES (TOC)

NO

NO

Optional

NO

Internal Tank

NO

NO

1 Tank

NO

NO

2 Tank

1 Tank

2 Tank

NO

2 Tank

2 Tank

Installation Method

Tabletop

Wall-mounted

Desk

Tabletop

Tabletop

Tabletop

Tabletop

Tabletop

Floor

Floor

Floor

Floor