Three preparation methods for the experimental solution of the salt spray test chamber! -Huaqiang Electronic Network

Salt spray test box

Salt spray corrosion test chamber, salt spray box, through the assessment of the ability of the material and its protective layer of salt spray corrosion, as well as the similar process quality of the protective layer, while assessing the ability of some products to resist salt spray corrosion; Salt spray corrosion test for parts, electronic components, metal protective layers and industrial products.
Let me introduce the preparation method of the salt spray box for the experiment:

1. Preparation of neutral salt spray solution

Will match

GBl266

Chemically pure sodium chloride dissolved in compliance

GB6682

In tertiary water, the concentration is

(50±10)g/L

. use

PH

Test strip

25

°C

Measuring the test solution

PH

Value

6.5~7.5

. When it is out of range, it can be adjusted by adding analytical hydrochloric acid or sodium hydroxide solution. The prepared solution needs to be filtered before use.

Second, the preparation of acetate spray solution

First match

GBl266

Chemically pure sodium chloride dissolved in compliance

GB6682

In tertiary water, the concentration is

(50±10)g

/

L

Then adjust the solution with acetic acid

PH

Value, make it

3.1

~

3.3

Within the scope

PH

Values ​​were measured using the collected salt spray samples. Should be

25

°C

Time

PH

Value measurement, the prepared solution needs to be filtered before use.

Third, copper accelerated acetic acid

/

Preparation of salt spray solution

The first step will be met

GBl266

Chemically pure sodium chloride solution

GB6682

In tertiary water, the concentration is

(50±10)g/L

. The second step is

3.8

Add reagent grade copper dichloride to liter of brine

(CuCl221120)

Mix well and dissolve. The third step is to adjust the solution with acetic acid.

PH

Value, make it

3.1~3.3

Within the scope

PH

Values ​​were measured using the collected salt spray samples. Should be

25

°C

Time

PH

Value measurement, the prepared solution needs to be filtered before use.

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