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GB/T 30807-2025 Active
GB/T 30807-2025 Thermal insulating products for building applications—Determination of long-term water absorption by immersion
Abstract
This document specifies the instruments and procedures used to determine the long-term water absorption of samples.
This document is applicable to insulation products.
This document describes two methods:
—— Method 1: Partial immersion;
—— Method 2: Full immersion.
The long-term water absorption by partial immersion is intended to simulate the water absorption caused by the long-term exposure of products to water.
The long-term water absorption by full immersion is a relevant test condition for products in certain applications and is not directly related to field conditions.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 30807-2025 |
| CCS | Insulation, sound-absorbing, lightweight, and fire-resistant materials |
| ICS | The insulation of buildings |
| Implement Date | 2026-01-01 |
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