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近日,由河间市亨达密封材料有限公司与国家建材工业局咸阳非金属矿研究设计院共同起草的《耐油石棉橡胶板试验方法》列为国家标准GB/T840-1999,由国家质量技术监督局颁布施行。据悉,耐油石棉橡胶板应用广泛,适用于电力、机构、石油、化工、船舶等国民经济各个领域。随着我国经济发展,国家对耐油石棉橡胶板产品性能、质量标准要求越来越高。1983年制定的标准已不适应形势发展需要。为此,国家建材局邀请了全国30多家知名企业对行业标准进行研讨,最后经专家认定,由亨达集团参与制定行业标准。新标准代替了GB/T540-1983、GB/T543-1983、GB/T3912-1983、GB/T3913-1983,在技术内容上,对原标准制定的试样浸油试验、浸油增厚率等五项内容进行了修改,
Recently, the “Test Method for Oil-resistant Asbestos Rubber Sheets” jointly drafted by Hejian City Hengda Sealing Material Co., Ltd. and the National Building Material Industry Bureau Xianyang Non-metallic Minerals Research and Design Institute is listed as a national standard GB/T840-1999, by the National Quality and Technical Supervision. The Bureau promulgated and implemented. It is reported that the oil-resistant asbestos rubber sheet is widely used and applicable to various fields such as electricity, institutions, petroleum, chemicals, ships, and other national economies. With the development of our country’s economy, the state is demanding higher and higher performance and quality standards for oil-resistant asbestos rubber sheets. The standards established in 1983 have not been adapted to the needs of the development of the situation. To this end, the National Building Materials Bureau invited more than 30 well-known enterprises across the country to discuss the industry standards. Finally, experts determined that the Hengda Group should participate in the formulation of industry standards. The new standard replaces GB/T540-1983, GB/T543-1983, GB/T3912-1983, and GB/T3913-1983. In terms of technical content, the oil immersion test, immersion oil thickening rate, etc. for the original standards are established. Five items were modified