GB/T 21795-2008
Active
T/ZZB 2243-2021
Active
Group standards
T/ZZB 2243-2021 Short-loop chain-traction underwater single-track scraper machine
T/ZZB 2243-2021 Short-loop chain-traction underwater single-track scraper machine
Price:
$ 20.00
Basic Information
Standard Code:
T/ZZB 2243-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Environmental protection equipment
ICS Name:
Pollution, pollution control, and protection
Publish Date:
2021-08-23
Implement Date:
2021-09-23
Scope
Main technical content: This document specifies the terms and definitions, models, structures, and basic parameters, basic requirements, technical requirements, inspection methods, inspection rules, marking, packaging, transportation, and storage of the short-loop chain traction underwater single-track sludge scrapers (hereinafter referred to as sludge scrapers). This document is applicable to short-loop chain traction underwater single-track sludge scrapers used for sludge scraping at the bottom of rectangular sedimentation tanks in various water supply and drainage systems.
Development Information
Related Standards
GB/T 21796-2008
Replaced
GB/T 21796-2008 Chemicals—Activated sludge,respiration inhibition test
GB/T 21800-2008
Active
GB/T 21800-2008 Chemicals—Bioconcentration—Flow-through fish test
GB/T 21801-2008
Active
GB/T 21801-2008 Chemicals—Ready biodegradability—Manometric respirometry test
GB/T 21802-2008
Active
GB/T 21802-2008 Chemicals—Ready biodegradability—Modified MITI test (Ⅰ)
GB/T 21803-2008
Active