Drawn tube of copper and copper alloys

Standard published on 12.7.2017

Tobacco and tobacco products—Polypropylene fiber tow filter rod

Standard published on 20.7.2001

Programming languages-C

Standard published on 7.12.1994

Information processing--8-Bit single-byte coded graphic character sets--Part 1:Latin alphabet No.1

Standard published on 7.12.1994

Information processing systems--Open systems interconnection--Internal organization of the network layer

Standard published on 7.12.1994

Information processing systems--Information exchange between systems--Synchronous transmission signal quality at DTE/DCE interfaces

Standard published on 7.12.1994

Information processing--Data encipherment--Physical layer interoperability requirements

Standard published on 7.12.1994

The specifications of automatic telephone set

Standard published on 18.7.2002

Technical requirements and test methods for fixed-line telephone sets
Execute Date: november 2026

Standard published on 30.4.2026

Codes for names of oil and gas fields of China

Standard published on 6.5.2009