GB/T 9172-1988
Abolished
GB/T 8313-2018
Active
National standards
GB/T 8313-2018 Determination of total polyphenols and catechins content in tea
GB/T 8313-2018 Determination of total polyphenols and catechins content in tea
Basic Information
Standard Code:
GB/T 8313-2018
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Tea products
ICS Name:
Tea
Publish Date:
2018-07-13
Implement Date:
2018-11-01
Pages:
8 pages
Scope
This standard specifies the methods for determining the content of catechins in tea by high-performance liquid chromatography (HPLC) and the content of tea polyphenols in tea by spectrophotometry.
This standard is applicable to the determination of the content of catechins and tea polyphenols in tea and tea products.
Development Information
Replace the following standards
Referenced Standards
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
GB/T 8302-2002 Tea—Sampling
GB/T 8302-2013 Tea—Sampling
GB/T 8303-2002 Tea—Preparation of ground sample and determination of dry matter content
GB/T 8303-2013 Tea—Preparation of ground sample and determination of dry matter content
Adopt standards
ISO 14502-1:2005
ISO 14502-2:2005
Related Standards
GB/T 14487-1993
Replaced
GB/T 14487-1993 The terms of tea sensory tests
GB/T 14456-1993
Replaced
GB/T 14456-1993 Green tea
GB/T 13738.1-1997
Replaced
GB/T 13738.1-1997 The first set of broken black tea
GB 18665-2002
Replaced
GB 18665-2002 Mengshan Tea
GB/T 9833.1-2002
Replaced