我国改性沥青防水卷材产品标准的制订

INTRODUCTION TO THE NATIONAL STANDARD FOR MODIFIED BITUMINOUS SHEET MATERIALS

两个新的改性沥青防水卷材国家标准于 2 0 0 1年 5月 1日在我国实施。新的国家标准参照采用了美国 ASTM D61 63 -1 997、D61 64 -1 997、D62 2 2 -1 998标准中的有关部分 ,非等效采用了德国 DIN52 1 3 2 -1 996中的有关部分。按 ASTM要求 ,新的国家标准将改性沥青防水卷材分为 型和 型。对比我国过去的行业标准 ,新的国家标准增加了撕裂强度和人工气候老化指标 ,并且对低温柔性指标参照 ASTM作了修订。

Two national standards of modified bitumen membranes were enforced on May 1,2001.These new standards were equivalent to the relative portions of ASTM D6163-1997,D6164-1997,D6222-1998,and referred to DIN 52132-1996.According to ASTM,the new standards classify modified bitumen membranes by type Ⅰ and typ Ⅱ.Compared with past professional standards,the new standards augmented tear strength,accelerated weathering and modified the low temperature flexibility index with reference to ASTM.