標(biāo)準(zhǔn)號(hào)：ISO 4590-2002
中文標(biāo)準(zhǔn)名稱：硬質(zhì)泡沫塑料.開口和封閉氣室容積百分?jǐn)?shù)測(cè)定
英文標(biāo)準(zhǔn)名稱：Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國(guó)標(biāo)準(zhǔn)分類號(hào)：G31
國(guó)際標(biāo)準(zhǔn)分類號(hào)：83.100
適用范圍：This International Standard specifies a general procedure for the determination of the volume percentage of open and of closed cells of rigid cellular plastics, by measurement first of the geometrical volume and then of the air-impenetrable volume of test specimens. The procedure includes the correction of the apparent open-cell volume by taking into account the surface cells opened by cutting during specimen preparation. Two alternative methods (method 1 and method 2), and corresponding apparatus, are specified for the measurement of the impenetrable volume. The results obtained from method 2 (see clause 9) are intended to be used for comparison purposes only.