Recycled Aggregate Concrete -Additional provisions and guidance for specification, performance, production and execution. A draft is being reviewed by the committee. A new technical …

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It is applicable to products, facilities and equipment of housing and transportation, services, and packages, which use tactile symbols and letters. This document specifies physical characteristics of tactile symbols and letters for ease of legibility by touch taking into account human abilities of tactile sense and their aging effect.

2025年3月10日 · A new technical specification around concrete technology, with scope on materials and production quality requirements as well as some execution aspect of recycled aggregate concrete. Genorma.com is the first single pan-European information point for standards and legislation in Europe.

2023年12月30日 · 内容提示： ISO 21856：2022 标准出版物 辅助产品 — 一般要求和测试方法 内容 前言 前导言 导言 vii 1. 范围 1 2. 规范性参考文献 1 3. 术语和定义 3 4. 一般要求 7 1. 风险分析与管理 7 2. 预期性能和技术文档 8 3. 临床评估和调查 8 4. 可拆卸的辅助用品 8 5. 紧固件 8 6 ...

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ISO/CD TS 21056 Recycled aggregate concrete — Additional provisions and guidance for specification, performance, and production

ISO/CD TS 21056 Recycled Aggregate Concrete -Additional provisions and guidance for specification, performance, production and execution

ISO/DIS 21056 - 2017-10 Ergonomics - Accessible design - Guidelines for designing tactile symbols and letters. Inform now!

2017年10月5日 · This document provides design guidelines for tactile symbols and letters used for information and marking for people who need non-visual or non-auditory information. It is …