QB/T 5114-2017 English PDF

US$229.00 · In stock
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QB/T 5114-2017: Determination of retained blowing agent in rigid polyurethane foam
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
QB/T 5114-2017	229	Add to Cart	3 days	Determination of retained blowing agent in rigid polyurethane foam	Valid

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Basic data

Standard ID: QB/T 5114-2017 (QB/T5114-2017)
Description (Translated English): Determination of retained blowing agent in rigid polyurethane foam
Sector / Industry: Light Industry Standard (Recommended)
Classification of Chinese Standard: Y28
Classification of International Standard: 83.100
Word Count Estimation: 10,184
Date of Issue: 2017-04-12
Date of Implementation: 2017-10-01
Quoted Standard: GB/T 18826-2002
Regulation (derived from): Ministry of Industry and Information Technology Bulletin 2017 No. 14; Industry Standard Filing Announcement 2017 No. 7 (Total No. 211)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies two methods for the determination of residual blowing agents in rigid polyurethane foams by headspace gas chromatography, Method A hydrogen flame ionization detector (FID) and method B electron capture detector (ECD). This standard applies to rigid polyurethane foam density range 30kg/m ^ 3 ~ 80kg/m ^ 3. Method A is suitable for the determination of alkanes (cyclopentane, isopentane) and methyl formate blowing agent in rigid polyurethane foam; Method B is suitable for the determination of chlorofluorocarbons (CFC-11), hydrogen Determination of blowing agents for hydrochlorofluorocarbons (HCFC-141b, HCFC-22) and hydrofluorocarbons (HFC-245fa, HFC-365mfc, HFC-227ea, HFC-134a) this

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