超清版 GB/T 26689-2024 冰箱、冰柜用硬质聚氨酯泡沫塑料

ICS 83.100
CCS G 30
中华人民共和国国家标准
GB/T 26689—2024
冰箱、冰柜用硬质聚氨酯泡沫塑料
Rigid polyurethane cellular plastics used in refrigerators and freezers
代替 GB/T 26689—2011
2024-08-23 发布2025-03-01 实施
国家市场监督管理总局
国家标准化管理委员会发 布

目　　次
前言 ····································································································· Ⅲ
1 范围 ·································································································· 1
2 规范性引用文件 ······················································································ 1
3 术语和定义 ··························································································· 1
4 分类 ·································································································· 1
5 要求 ·································································································· 1
5.1 外观 ······························································································ 1
5.2 物理力学性能 ···················································································· 2
5.3 高低温循环性能 ················································································· 2
6 试验方法 ······························································································ 2
6.1 状态调节 ························································································· 2
6.2 外观 ······························································································ 2
6.3 导热系数 ························································································· 2
6.4 压缩强度或形变10% 压缩应力 ·································································· 2
6.5 尺寸稳定性 ······················································································ 3
6.6 表观芯密度 ······················································································ 3
6.7 闭孔率 ··························································································· 3
6.8 吸水率 ··························································································· 3
6.9 高低温循环性能 ················································································· 3
6.10 粘结强度 ························································································ 3
7 检验规则 ······························································································ 3
7.1 检验分类 ························································································· 3
7.2 组批、抽样 ······················································································ 4
7.3 判定规则 ························································································· 4
附录A （资料性） 粘结强度的测定方法 ······························································ 5
A.1 试验仪器 ·········································································