DB21/T 1720-2009 Replaced Liaoning ProvinceLocal standards

DB21/T 1720-2009 Seawater Source Heat Pump System Engineering Technical Specification

Publish Date: 2009-02-25 Implement Date: 2009-03-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: DB21/T 1720-2009

Standard Type: Local standards

Standard Status: Replaced

is_force_gb: no

CCS Name: The relationship between supply and use

ICS Name: Trade, commercial activities, and marketing

Publish Date: 2009-02-25

Implement Date: 2009-03-25

Development Information

Superseded by the following standards

DB21/T 1720-2017 Seawater Heat Pump System Engineering Technical Specification

Related Standards

GB/T 14392-1993 Replaced

GB/T 14392-1993 Layout key for trade document

Publish Date: 1993-05-14

GB/T 14393-1993 Replaced

GB/T 14393-1993 Location of codes in trade documents

Publish Date: 1993-05-14

GB/T 17629-1998 Replaced

GB/T 17629-1998 Model interchange agreement for the international commercial use of electronic data interchange

Publish Date: 1998-12-14

GB 17924-1999 Replaced

GB 17924-1999 General requirements for products of designations of origin or geographical indications

Publish Date: 1999-12-07

GB/T 13391-2000 Replaced

GB/T 13391-2000 Classification and granding directives for restaurants and hotels

Publish Date: 2000-05-19

GB/T 18106-2000 Abolished

GB/T 18106-2000 Classification of types of operation in retail business

Publish Date: 2000-05-19