Mandatory Certification for Steel for the Reinforcement of Concrete
National Technical Regulation 
 Circular No. 21/2009/TT-BKHCN

QCVN 4:2009/BKHCN

Certification Guidelines

Decision No. 402/QĐ-TĐC

Relevant Standards
 TCVN 5699-1:2004 (IEC 60335-1: 2001)
 TCVN 5699-2-35:2007 (IEC 60335-2-35: 2005)
TCVN 5699-2-21:2007 (IEC 60335-2-21:2004)
TCVN 5699-2-23:2007(IEC 60335-2-23: 2005)
TCVN 5699-2-15:2007 (IEC 60335-2-15: 2005)
TCVN 5699-2-80:2007 (IEC 60335-2-80:2005)
TCVN 5699-2-3:2006 (IEC 60335-2-3: 2005)
 TCVN 5699-2-25:2007 (IEC 60335-2-25: 2005)
TCVN 5699-2-9:2004 (IEC 60335-2-9:2002, Adm.1:2004)
TCVN 6610-1:2007 (IEC 60227-1: 1998)
TCVN 6610-3:2000 (IEC 60227-3: 1997) 
TCVN 6610-4:2000 (IEC 60227-4: 1992, Adm.1:1997
TCVN 6610-5:2007 (IEC 60227-5:2003)
TCVN 5699-2-74:2005 (IEC 60335-2-74:2002)