标准解读
《GB/T 26689-2024 冰箱、冰柜用硬质聚氨酯泡沫塑料》相比《GB/T 26689-2011 冰箱、冰柜用硬质聚氨酯泡沫塑料》,主要在以下几个方面进行了更新和调整:
-
环保要求提升:新标准可能加强了对生产过程中使用的原材料及成品的环保要求,限制或禁止某些有害物质的使用,以符合当前更严格的环境保护和健康安全标准。
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能效标准调整:鉴于能源效率日益受到重视,新标准可能会对冰箱、冰柜用硬质聚氨酯泡沫塑料的绝热性能提出更高要求,旨在提升家电产品的整体能效水平。
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测试方法优化:为确保检测结果的准确性和可重复性,新标准可能引入了新的测试方法或修订了原有测试程序,包括密度、导热系数、压缩强度等关键性能指标的测定方法。
-
分类与标识:标准可能对产品进行了更细致的分类,并对产品标识提出了更具体的要求,便于消费者识别和选择符合特定需求的产品。
-
耐久性和安全性增强:考虑到长期使用中的性能保持及用户安全,新标准或许增加了对材料耐老化性、防火阻燃性能等方面的考核指标。
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技术进步适应性:随着材料科学和技术的发展,新标准可能吸纳了近年来的研究成果,对泡沫塑料的制造工艺、添加剂使用等方面给予了新的指导或限制。
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国际标准接轨:为了促进产品国际化,新标准可能参考了国际上同类产品的最新标准,增强国内外市场的兼容性和互认度。
如需获取更多详尽信息,请直接参考下方经官方授权发布的权威标准文档。
....
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- 2024-08-23 颁布
- 2025-03-01 实施
文档简介
ICS
83.100
CCS
G30
中华人民共和国国家标准
GB/T26689—2024
代替GB/T26689—2011
冰箱、冰柜用硬质聚氨酯泡沫塑料
Rigidpolyurethanecellularplasticsusedinrefrigeratorsandfreezers
2024-08-23发布2025-03-01实施
国家市场监督管理总局发布
国家标准化管理委员会
GB/T26689—2024
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
························································································
5
A.2
试样制备
························································································
5
A.3
试验步骤
························································································
5
A.4
试验结果
························································································
5
Ⅰ
GB/T26689—2024
前言
本文件按照GB/T1.1—2020《标准化工作导则第1部分:标准化文件的结构和起草规则》的规
定起草。
本文件代替GB/T26689—2011《冰箱、冰柜用硬质聚氨酯泡沫塑料》,与GB/T26689—2011相
比,除结构调整和编辑性改动外,主要技术变化如下:
a)增加了“术语和定义”一章(见第3章);
b)更改了产品分类(见第4章,2011年版的第3章);
c)更改了产品外观要求(见5.1,2011年版的4.1);
d)将“导热系数”更改为“初始导热系数”,并更改了相应指标要求(见5.2,2011年版的
4.2);
e)增加了长期导热系数性能要求和检测方法(见5.2和6.3);
f)更改了压缩强度或形变10%压缩应力的要求(见5.2,2011年版的4.2);
g)更改了表观芯密度的指标要求(见5.2,2011年版的4.2);
h)更改了导热系数的试验方法(见6.3,2011年版的5.3);
i)更改了出厂检验和型式检验的检验项目(见7.1,2011年版的6.1);
j)更改了产品抽样要求(见7.2.2,2011年版的6.2.2);
k)更改了判定规则(见7.3,2011年版的6.3);
l)将“粘结强度的测定方法”由规范性附录更改为资料性附录(见附录A,2011年版的附录A)。
请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。
本文件由中国轻工业联合会提出。
本文件由全国塑料制品标准化技术委员会(SAC/TC48)归口。
本文件起草单位:北京工商大学、海信容声(广东)冰箱有限公司、红宝丽集团股份有限公司、万
华化学集团股份有限公司、河北亚东化工集团有限公司、天长市伯士的环保新材料有限公司、美的集团
股份有限公司、山东澳帆新材料有限公司、中化蓝天霍尼韦尔新材料有限公司、杭州崇耀科技发展有限
公司、绍兴市辰星聚氨酯有限公司、山东亿博润新材料科技有限公司、山东联创聚合物有限公司、北京
建筑材料检验研究院股份有限公司、江苏江化聚氨酯产品质量检测有限公司、中山大学、山东大学、
运城学院。
本文件主要起草人:陈倩、胡锋、邢益辉、朱霞林、袁海顺、周洪福、古浩贤、赵士虎、石庆庆、
余小贯、宋新锋、余仁根、郝德开、孔莉、刘晶、吴昊、翟文涛、王桂龙、王杰。
本文件及其所代替文件的历次版本发布情况为:
—2011年首次发布为GB/T26689—2011;
—本次为第一次修订。
Ⅲ
GB/T26689—2024
冰箱、冰柜用硬质聚氨酯泡沫塑料
1范围
本文件界定了冰箱、冰柜用硬质聚氨酯泡沫塑料的术语和定义,规定了分类、要求、检验规则,并
描述了相应的试验方法。
本文件适用于以组合多元醇和多异氰酸酯为主要原料发泡生产的冰箱、冰柜用硬质聚氨酯泡沫塑
料。
2规范性引用文件
下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中,注日期的引用文
件,仅该日期对应的版本适用于本文件;不注日期的引用文件,其最新版本(包括所有的修改单)适用
于本文
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