National Standard

NationalGBGB/TGB/ZGBn

Description

A national standard: GB (mandatory), GB/T (recommended), GB/Z (guideline), and GBn (internal, historical). The body letter and mandate are part of the identity — GB 20223-2006 and GBn 20223-2006 are two different documents.

Syntax

Chinese standards follow: {Body}[/{Mandate}] {Number}[-{Part}]:-{Year}. The mandate letter after the slash states the legal force: T = recommended (推荐), Z = guideline (指导), none = mandatory (强制性). Social-group standards print the organization after T/ (T/GZAEPI 1-2020). Chinese typography uses an em-dash before the year (—2010); the ASCII hyphen is accepted.

Examples 6

GB/T 20223-2006

GB 1234-2010

GB/Z 123-2008

GBn 123-1990

GB/T 5606.1-2004

GB/T 5606 (all parts)

Components Used

GB National Standard identifiers are composed of these elements:

Issuing Body

Enumeration

The body code as printed: GB, JB, GBn, T/{ORG}…

GBGB/TGB/ZGBnJBHBT/{ORG}

Part of the identity — the series distinguishes two documents with one number

e.g.GB/T

:publisher

Mandate

Enumeration

Legal force letter carried after the slash

T (recommended)Z (guideline)— (mandatory)

e.g.T

:mandate

Number

String

Document number, possibly dotted with a part (5606.1)

e.g.20223

:number

Part

String

Part number, split from a dotted number on parse

e.g.1

:part

Year

Approval year, after an em-dash or hyphen

e.g.2006

:year

Algebraic Relations

Relations that can involve National Standard identifiers:

Relation	Description	Syntax	Example
All Parts	A reference to every part of a multi-part standard	`GB/T [Number] (all parts)`	`GB/T 5606 (all parts)`
Part	A part of a multi-part standard	`GB/T [Number].[Part]-[Year]`	`GB/T 5606.1-2004`

URN Mapping

Patternurn:pubid:gb:std:{number}:pub-{body}:mandate-{mandate}:year-{year}