Download or read book GB T 12008 5 2010 Translated English of Chinese Standard GBT12008 5 2010 GB T 12008 5 2010 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-10-02 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test method specified in this Part of GB/T 12008 is used to determine the acidic components in polyether polyols, and the result is expressed in acid number. The typical acid number (calculated by the amount of consumed KOH) ranges from 0 to 0.1 mg/g. This Part does not involve any safety issues associated with the application. Before use, the user is responsible for establishing appropriate safety and health measures and determining the scope of application of management restrictions.

Download or read book GB T 12008 2 2010 Translated English of Chinese Standard GBT12008 2 2010 GB T 12008 2 2010 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-10-02 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of GB/T 12008 specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage of polyether polyols 113E, 210, 220, 220X, 330E, 348H, 330, 330X, 360H, 310, 403, 6305, 8305. This Part applies to polyether polyols 113E, 210, 220, 220X, 330E, 348H, 330, 330X, 360H, 310, 403, 6305, 8305, which are prepared by ring-opening polymerization of polyol and propylene oxide, (or) polyol and propylene oxide, and ethylene oxide under the action of a catalyst.

Download or read book GB T 12008 7 2010 Translated English of Chinese Standard GBT12008 7 2010 GB T 12008 7 2010 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2021-10-02 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 12008 specifies the methods for the determination of viscosity of polyether polyols. Method A is Brookfield viscosity method. This test method is applicable to the determination of viscosity of polyether polyols with the viscosity range of (10 ~ 100,000) mPaS at 25~50 Celcius-degree. Meanwhile, it is also applicable to the determination of viscosity of a more viscous sample that can be dissolved in n-butyl acetate.

Download or read book GB T 12008 3 2009 Translated English of Chinese Standard GBT 12008 3 2009 GB T12008 3 2009 GBT12008 3 2009 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-10-16 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 12008 specifies two methods for the determination of the hydroxyl value of polyether polyols. Method A is phthalic anhydride method. It is recommended for polyether polyols, polymer polyols and polyols with ammonia as initiator. But for polyols with steric hindrance, the result shall be lower. If corrective measures can be taken, other polyols can also apply this method.