Standard No.:	GB/T 19602-2004
Chinese Name:	工业用1,1-二氟乙烷(HFC-152a)
English Name:	1,1-Difluoroethane for industrial use(HFC-152a)
Professional Classification:	G17 General organic chemicals
Professional Classification:	GB National Standard
ICS Classification:	71.080.20 Halogenated hydrocarbons
Issued by:
Issued on:	2004-11-23
Implemented on:	2005-01-02
Status:	VALID
Language:	English
File Format:	PDF
Word Count:	7000 words
Price(USD):	210 (USD)
Delivery:	via email in 1-3 business day

This standard specifies requirement, test method, test rules and marking, packing, stock-piling and safety of 1, 1-Difluoroethane for industry use.
This standard is applicable to 1, 1-Difluoroethane generated by hydrogen fluoride reacting with raw material of vinyl chloride or acetylene. This product is mainly to replace difluorodichloromethane (F12) and tetrafluorodichloroethane (F114). I-type products are mainly for cryogen; II-type products are mainly for raw material for production of fluorization or may be used for aerosol propellant.
Molecular formula: CHF2CH3
Relative molecular mass: 66.05 (according to international relative atomic mass in year 2001)