GY/T 421-2025 Active Industry standards-China Media Group

GY/T 421-2025 Hotel TV business technical requirements

Publish Date: 2025-06-29 Implement Date: 2025-06-29 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GY/T 421-2025

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Broadcasting and television networks

ICS Name: Audio, video, and audiovisual engineering

Publish Date: 2025-06-29

Implement Date: 2025-06-29

Development Information

Related Standards

GB/T 3451-1982 Active

GB/T 3451-1982 Standard tuning frequency

Publish Date: 1982-12-31

GB/T 3659-1983 Active

GB/T 3659-1983 Methods of measurement of television video channel

Publish Date: 1983-05-05

GB/T 3660-1983 Abolished

GB/T 3660-1983 Unified weighting network for measuring video continuous random noise

Publish Date: 1983-05-05

GB/T 3948-1983 Abolished

GB/T 3948-1983 Test method of three primary colors chromaticity coordinates for TV

Publish Date: 1983-11-28

GB/T 6278-1986 Replaced

GB/T 6278-1986 Simulated programme signal

Publish Date: 1986-04-15

GB/T 7394-1987 Abolished

GB/T 7394-1987 Requirements of 600~9600 bit/s baseband modem

Publish Date: 1987-03-02