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GB/T 3780.7-2025 Active
GB/T 3780.7-2025 Carbon black—Part 7:Determination of pH value
Abstract
This document describes the methods for determining the pH value of carbon black using the boiling slurry method (Method A) and the ultrasonic slurry method (Method B).
This document is applicable to the determination of carbon black used in rubber, acetylene carbon black, pigment carbon black, and other types of carbon black.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 3780.7-2025 |
| CCS | Carbon black |
| ICS | Rubber synthetic ingredients |
| Implement Date | 2026-02-01 |
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