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GB/T 18570.9-2025 Active
GB/T 18570.9-2025 Preparation of steel substrates before application of paints and related products—Tests for the assessment of surface cleanliness—Part 9:Field method for the conductometric determination of water-soluble salts
Abstract
This document describes a method for evaluating the total surface concentration of various water-soluble salts on steel surfaces before and after surface treatment by measuring the electrical conductivity on-site.
This document is not suitable for determining the surface concentration of individual chlorides, sulfates, or sodium salts.
This document is only applicable to evaluating impurities that represent the majority of electrolytes (ions) formed when in contact with water.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 18570.9-2025 |
| CCS | Material protection |
| ICS | Pre-treatment of the surface |
| Implement Date | 2026-02-01 |
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