作废 QJ 2540-1993
硬质泡沫塑料开孔和闭孔体积百分比测试方法 硬质泡沫塑料开孔和闭孔体积百分比测试方法
发布日期:1993-03-20
实施日期:1993-12-02
分类信息
发布单位或类别: 中国 行业标准-航天
CCS分类: G32化工 - 合成材料 - 合成树脂、塑料
ICS分类:
标准简介
相似标准/计划/法规
UNE-EN ISO 4590-2003
Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells (ISO 4590:2002)
硬质泡沫塑料开孔和闭孔体积百分比的测定
2003-10-03
KS M ISO 4590(2023 Confirm)
경질 발포 플라스틱 — 독립 기포 및개방 기포의 부피분율 측정
硬质泡沫塑料开孔和闭孔体积百分比的测定
2018-12-28
BS EN ISO 4590-2016
Rigid cellular plastics. Determination of the volume percentage of open cells and of closed cells
硬质泡沫塑料 开孔和闭孔容积百分比的测定
2016-08-31
AS 2498.7-1993
Methods of testing rigid cellular plastics, Method 7: Determination of volume percentage of open and closed cells
硬质泡沫塑料的试验方法 方法7:开孔和闭孔体积百分比的测定
1993-07-12
GB/T 10799-2008
硬质泡沫塑料 开孔和闭孔体积百分率的测定
Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells
2008-01-04
DIN ISO 4590
Cellular plastics - Determination of volume percentage of open and closed cells of rigid materials; Identical with ISO 4590, edition 1981
泡沫塑料;测定刚性材料开孔和闭孔的体积百分比;与ISO 4590(1981年版)相同
1986-11-01
百分比体积开孔测试方法

最后更新时间 2025-08-29