DB21/T 3415-2021 Active Liaoning ProvinceLocal standards

DB21/T 3415-2021 The Procedures for the Detection of Dredging Depth of Reservoirs in Liaoning Province using Sonar Technology Manual

Publish Date: 2021-04-30 Implement Date: 2021-05-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: DB21/T 3415-2021

Standard Type: Local standards

Standard Status: Active

is_force_gb: no

CCS Name: Hydropower projects

ICS Name: Acoustics and acoustic measurement

Publish Date: 2021-04-30

Implement Date: 2021-05-30

Pages: 25 pages

Development Information

Pages: 25 pages

Related Standards

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Publish Date: 1982-06-08

GB/T 3240-1982 Active

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Publish Date: 1982-06-08

GB/T 3785-1983 Replaced

GB/T 3785-1983 Electric, sonic properties and measuring methods for sound level meters

Publish Date: 1983-06-25

GB/T 5265-1985 Replaced

GB/T 5265-1985 Measurement of underwater noise

Publish Date: 1985-07-26

GB/T 7966-1987 Replaced

GB/T 7966-1987 Acoustics—Ultrasonic power measurement in the frequency range 0.5～10MHz

Publish Date: 1987-06-22

GB/T 11452-1989 Abolished

GB/T 11452-1989 Guide to hearing aid standards

Publish Date: 1989-07-04