GB/T 34550.1-2017Method for evaluation of cooling seawater treatment agents—Part 1: Determination of corrosion inhibition performance (English PDF)

1 Scope

GB/T 34550 provisions of this part of the water treatment chemicals to inhibit cooling seawater corrosion of metal corrosion inhibition method.

This section applies to water treatment chemicals inhibit cooling seawater uniform corrosion of metal corrosion determination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 603 chemical reagent test methods used in the preparation of preparations and products

GB/T 6682 analytical laboratory water specifications and test methods

Marine monitoring code - Part 4. Analysis of seawater GB 17378.4-2007

HG/T 3523 cooling water chemical treatment standard corrosion test piece technical conditions

3 principle

Under the given conditions in the laboratory, the corrosion rate and the corrosion inhibition rate were calculated according to the mass loss of the metal test piece before and after the corrosion as a measure of seawater

The basis of corrosion inhibition performance of cooling water treatment chemicals, the smaller the corrosion rate, the higher the corrosion inhibition rate, the better the corrosion inhibition performance of water treatment agents.

4 Reagents and materials

In the absence of specific requirements, the reagents used in the test refers to the analysis of reagents, laboratory water in line with GB/T 6682 provisions of the three and

The above requirements; in the absence of other provisions, the test required standard solutions, preparations and products, according to the provisions of GB/T 603 prepared.