MT/T 639-2019 Active Industry standards-Coal

MT/T 639-2019 The method for measuring the initial velocity of gas emission during drilling

Publish Date: 2019-11-28 Implement Date: 2020-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: MT/T 639-2019

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Health, safety, and labor protection

ICS Name: Occupational safety and industrial hygiene

Publish Date: 2019-11-28

Implement Date: 2020-06-01

Pages: 9 pages

Development Information

Pages: 9 pages

Replace the following standards

MT/T 639-1996 The method for measuring the initial velocity of gas emission during drilling

Related Standards

GB/T 5082-1985 Replaced

GB/T 5082-1985 The commanding signal for lifting and moving

Publish Date: 1985-04-17

GB 6222-1986 Abolished

GB 6222-1986 Safety code for gas of industrial enterprises

Publish Date: 1986-04-09

GB 7059.1-1986 Replaced

GB 7059.1-1986 Safety standard for wood portable vertical ladder

Publish Date: 1986-12-09

GB 7059.2-1986 Replaced

GB 7059.2-1986 Safety standard for wood portable stepladder

Publish Date: 1986-12-09

GB 7059.3-1986 Replaced

GB 7059.3-1986 Safety standard for light metals portable stepladder

Publish Date: 1986-12-09

GB 7806-1987 Abolished

GB 7806-1987 Diagnostic criteria and principles of management of occupational contact dermatitis

Publish Date: 1987-05-25