我国从 2 0 0 1年 5月 1日起强制实行的ＧＢ 182 42 2 0 0 0弹性体改性沥青防水卷材国家标准 ,基本等同采用最新的国际标准 ,国家标准的实施将有力地促进我国防水材料质量的提高 ,规范防水材料市场 ,推动我国防水材料的健康发展。新的国家标准与ＪＣ 5 6 0 9 4比较 ,有 5个方 Our country from May 1, 2001 onwards enforced GB 182 42 2 0 0 0 elastomer modified bitumen waterproofing membrane national standards, basically the same as the use of the latest international standards, the implementation of national standards will effectively promote China Improve the quality of waterproof materials, standardize the waterproof material market, and promote the healthy development of waterproof material in our country. The new national standard compared with JC 5 6 0 9 4 has 5 parties