GB/T 46182-2025 "Paper and pulp — Test method for deinkability of printed paper products" applies to the deinkability testing of mixtures of printed paper products, including both wood-containing and wood-free papers. It specifies a laboratory test method for single flotation deinking under alkaline conditions, detailing technical requirements such as sample proportioning, deinking agent selection, and flotation parameters. By evaluating indicators such as the brightness of deinked pulp and the content of residual ink particles, the deinking effectiveness is determined. This standard provides a unified testing method for waste paper recycling and deinking process optimization, supporting the green and circular development of the papermaking industry.
| Status | Active | ||
|---|---|---|---|
| CCS | Y 30 | ICS | 85.010 |
| Release Date | 2025-08-29 00:00:00 | Implementation Date | 2026-03-01 00:00:00 |
