Water quality laboratory testing instruments of secondary water supply plant

The synopsis of project
The ERUN series water quality laboratory testing instruments of secondary water supply plant developed and produced by Erun Group are designed with reference to the "GB 17051". The water quality testing instrument for drinking water supply stations is suitable for testing the water quality of drinking tap water, including pressurized equipment and high-level water tanks (pools) combined water supply, variable frequency speed regulation water supply, stacked water supply, and pressure water supply. The laboratory water quality analyzer of the secondary water supply plant can mainly test parameters including chromaticity, turbidity, pH, total coliforms, aerobic bacterial count, residual chlorine, total hardness, chloride, nitrate nitrogen, volatile phenols, cyanide, arsenic, hexavalent chrome, iron, manganese, lead, ammonia nitrogen, nitrite nitrogen, permanganate index, etc.
The contents of project

1、Parameters and indicators that need to be tested for the quality of secondary water supply:

(1)Must test items

Chromaticity, turbidity, odor and visible substances to the naked eye, pH, total coliforms, aerobic bacterial count, residual chlorine.

(2)Select testing items

Total hardness, chloride, nitrate nitrogen, volatile phenols, cyanide, arsenic, hexavalent chrome, iron, manganese, lead, UV intensity.

(3)Additional testing items

Ammonia nitrogen, nitrite nitrogen, permanganate index.


2、Technical Parameters of water quality laboratory testing instruments of secondary water supply plant:


Serial No.

Items

Measuring range

Unit

Maximum deviation

Analysis methods

Standard basis

1

chromaticity

5-500

PCU

3%(F.S.)

Platinum cobalt standard colorimetric method

GB/T 5750.4

2

turbidity

0-400

NTU

≤2%(F.S.)

Scattering method - Formazine standard

GB/T 5750.4

3

pH

0.00-14.00

/

±0.1

Glass electrode method

GB/T 5750.4

4

total coliforms

——

pcs/L

——

Multi tube fermentation method

GB/T 5750.12

5

aerobic bacterial count

——

pcs/L

——

Plate count method

GB/T 5750.12

6

residual chlorine

0.02-10.00

mg/L

5%(F.S.)

Titrimetric method using N,N-diethyl-1,4-phenylenediamine

GB/T 5750.11

7

total hardness

0.1-500.0

mg/L

5%(F.S.)

EDTA acid chrome blue K method

GB/T 5750.4

8

chlorine ions

0.20-100.0

mg/L

5%(F.S.)

Ammonium thiocyanate spectrophotometric method

GB/T 29340

9

nitrate nitrogen

0.02-10.0

mg/L

0.1 or 5%

thymol spectrophotometric method

GB/T 5750.5

10

volatile phenols

0.20-10.0

mg/L

5%(F.S.)

4-aminoantipyrine direct spectrophotometric method

GB/T 5750.4

11

cyanide

0.01-0.50

mg/L

5%(F.S.)

Isonicotinate pyrazolone spectrophotometric method

GB/T 5750.5

12

arsenic

0.004-0.500

mg/L

5%(F.S.)

Zinc sulfuric acid system new silver salt spectrophotometric method

GB/T 5750.6

13

hexavalent chrome

0.01-1.00

mg/L

5%(F.S.)

diphenylcarbazide spectrophotometric method

GB/T 5750.6

14

iron

0.0-10.0

mg/L

5%(F.S.)

Phenanthroline spectrophotometric method

GB/T 5750.6

15

manganese

0.01-5.00

mg/L

5%(F.S.)

Ammonium persulfate spectrophotometric method

GB/T 5750.6

16

lead

0.01-0.50

mg/L

5%(F.S.)

Spectrophotometric method with dithizonc

GB/T 5750.6

17

ammonia nitrogen

0.02-25.00

mg/L

3%(F.S.)

Nessler's reagent spectrophotometric method

GB/T 5750.5

18

nitrate nitrogen

0.02-5.00

mg/L

0.05 or 5%

Thymol spectrophotometric method

GB/T 5750.5

19

permanganate index

0.00-10.00

mg/L

0.2 or 5%

Acidic potassium permanganate spectrophotometric method

GB/T 5750.7


3、List of water quality laboratory testing instruments of secondary water supply plant:

Serial No.

Part Number

Name

Items

Pictures

1

ERUN-ST-MU97

Laboratory benchtop multi-parameter water quality analyzer

chromaticity, turbidity, pH, residual chlorine, total hardness, chloride, nitrate nitrogen, volatile phenols, cyanide, arsenic, hexavalent chrome, iron, manganese, lead, ammonia nitrogen, nitrite nitrogen, permanganate index

Laboratory benchtop multi-parameter water quality analyzer of secondary water supply plant


2

ERUN-SP-MD690

Portable water quality microbiological tester

total coliforms, aerobic bacterial count

Portable water quality microbiological tester of secondary water supply plant

Note:Analysis parameter items can be flexibly combined and selected according to the customer's own needs.


4、Other parts list of water quality laboratory testing instruments of secondary water supply plant:

Serial No.

Name

Specifications

Quantity

1

Colorimetric tube

Ф25×95mm

10

2

Test tube rack

White

2

3

Pipette gun

Minimum graduation 0.1mL

1

4

Cuvette

50×25×70mm

2

5

Lens hood

black

1

6

residual chlorine reagent

100 times/set

1

7

total hardness reagent100 times/set

1

8

chloride reagent50 times/set

1

9

nitrate nitrogen reagent100 times/set

1

10

volatile phenols reagent100 times/set

1

11

cyanide reagent50 times/set

1

12

arsenic reagent

50 times/set

1

13

hexavalent chrome reagent100 times/set

1

14

iron reagent50 times/set

1

15

manganese reagent

50 times/set

1

16lead reagent50 times/set1
17ammonia nitrogen reagent200 times/set1
18nitrite nitrogen reagent100 times/set1
19permanganate index reagent100 times/set1
20water bathConstant temperature, resolution 0.1 ℃1
21biochemical incubatorERUN-SHX1001
22temperature electrode/1
23pH composite electrode/1
24chargers and charging cables/1
25USB cable/1
26product manual/1
27

product certificate

/product warranty card

/1

Note:Analysis parameter items can be flexibly combined and selected according to the customer's own needs.

Application Products
+8602985515255
yrhb@erunwas.com