GB/T 8309-2013 Active National standards

GB/T 8309-2013 Tea—Determination of alkalinity of water-soluble ash content

GB/T 8309-2013 Tea—Determination of alkalinity of water-soluble ash content

Publish Date: 2013-12-31 Implement Date: 2014-06-22 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 8309-2013

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Tea

Publish Date: 2013-12-31

Implement Date: 2014-06-22

Pages: 4 pages

Scope

This standard specifies the reagents and solutions, instruments and utensils, determination steps, and methods of result calculation for the determination of the alkalinity of water-soluble ash in tea.
This standard is applicable to the determination of the alkalinity of water-soluble ash in tea.

Development Information

Word Count: 6 Thousand words Pages: 4 pages

Replace the following standards

GB/T 8309-2002 Tea—Determination of alkalinity of water-soluble ash content

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions 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 GB/T 8306-2002 Tea—Determination of total ash content GB/T 8306-2013 Tea—Determination of total ash content GB/T 8307-2002 Tea—Determination of water-soluble ash and water-insoluble ash content GB/T 8307-2013 Tea—Determination of water-soluble ash and water-insoluble ash content

Adopt standards

ISO 1578:1987

Related Standards

GB/T 9172-1988 Abolished

GB/T 9172-1988 Grades of basket-fired green tea for scenting

Publish Date: 1988-04-30

GB/T 14487-1993 Replaced

GB/T 14487-1993 The terms of tea sensory tests

Publish Date: 1993-06-19

GB/T 14456-1993 Replaced

GB/T 14456-1993 Green tea

Publish Date: 1993-09-07

GB/T 13738.1-1997 Replaced

GB/T 13738.1-1997 The first set of broken black tea

Publish Date: 1997-06-16

GB 18665-2002 Replaced

GB 18665-2002 Mengshan Tea

Publish Date: 2002-03-05

GB/T 9833.1-2002 Replaced

GB/T 9833.1-2002 Brick tea—Hua zhuan tea

Publish Date: 2002-03-14