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asbestos rubber sheets oil-resistant asbestos rubber sheets asbestos fibre test methods asbestos network-based intrusion detection systems treatment part icewines
GB/T 540-2008 in English

GB/T 540-2008 in English

VALID

Test methods for oil-resisting compressed asbestos fibre jointing

  • Issued on:2008-08-20
  • Implemented on:2009-04-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $150.00
$146.00
Standard No: GB/T 540-2008
Document status: VALID
Title in English: Test methods for oil-resisting compressed asbestos fibre jointing
Title in Chinese: 耐油石棉橡胶板试验方法
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2008-08-20
Implemented on: 2009-04-01
Superseding: GB/T 15520-1995 Test method for steam tightness of asbestos-rubber sheets
GB/T 540-1999 Test methods for oil-resisting asbestos-rubber sheets
GB/T 541-1996 Test methods for asbestos-rubber sheets
GB/T 542-1983 Test method for flexibility of asbestos-rubber sheets
ICS Classification: 23.040.80-Seals for pipe and hose assemblies
Chinese Classification: Q61-Asbestos material
Professional Classification: GB-National Standard
Related Keywords: asbestos rubber sheets
oil-resistant asbestos rubber sheets
asbestos fibre
test methods
asbestos
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《GB/T 540-2008耐油石棉橡胶板试验方法》由609(中国建筑材料联合会)归口,主管部门为中国建筑材料联合会。
本标准代替GB/T 540-1999《耐油石棉橡胶板试验方法》、GB/T 541-1996《石棉橡胶板试验方法》、GB/T 542-1983《石棉橡胶板柔软性试验方法》、GB/T 15520-1995《石棉橡胶板蒸汽密封性能试验方法》。
本标准规定了石棉橡胶板和耐油石棉橡胶板的烧失量、对金属材料的腐蚀性、油密封性、耐热耐压性试验方法。
本标准适用于石棉橡胶板和耐油石棉橡胶板。在试样尺寸适合的情况下,也适用于用石棉橡胶板和耐油石棉橡胶板制成的密封垫片。其他非金属密封垫片材料亦可参照采用。
本标准与GB/T 540-1999、GB/T 541-1996、GB/T 542-1983、GB/T 15520-1995相比,主要变化如下:
―――删除了GB/T 541-1996中的拉伸强度试验方法、老化系数试验方法、密度试验方法、压缩率、回弹率试验方法四个试验方法,删除了GB/T 540-1999中的浸油拉伸强度试验方法、吸油率试验方法、浸油增厚率试验方法、浸油外观变化试验方法、浸油后柔软性试验方法五个试验方
法,删除了GB/T 540-1999的柔软性试验方法;
―――将GB/T 541-1996中规定的烧失量试验方法、GB/T 540-1999中规定的腐蚀性试验方法、油密封性试验方法、GB/T 15520-1995规定的蒸汽密封性能试验方法四个试验方法统一整合在本标准中;
―――本标准保留的四个试验方法与原标准在试验原理、试验设备、结果计算和判定方面基本一致,只是在试验步骤上规定得更加明确、具体;
―――将GB/T 540-1999中规定的“腐蚀性试验方法”名称修改为“对金属材料的腐蚀性试验
方法”; 
―――将GB/T 15520-1995“石棉橡胶板蒸汽密封性能试验方法”名称修改为“耐热耐压性试验方法”;同时取消了试验条件,将试片承受的压紧力(预紧压力)统一规定为所承受的内压力的2倍;另外增加了在规定温度下保持120min的要求;
―――在油密封性试验方法、耐热耐压性试验方法中增加了对法兰盘表面的质量要求和试片的质量要求。


Scope

This standard specifies the test methods for loss on ignition, corrosion to metal materials, airtightness, heat resistance and pressure resistance of asbestos rubber sheets and oil-resistant asbestos rubber sheets. This standard applies to asbestos rubber sheets and oil-resistant asbestos rubber sheets. Also applicable to sealing gaskets made of asbestos rubber sheets and oil-resistant asbestos rubber sheets, where the specimen size is suitable. Other non-metal sealing sheet materials can also be used as a reference.

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