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GB - Chinese national standards
Page 5384
GB/T 7583-1987 (27/03/1987)
Acoustics--Pure tone air conductionthreshold audio-metry--For hearing conservation purposes
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 346.40 EUR more info
GB/T 7584.1-2026 (27/02/2026)
Acoustics—Hearing protectors—Part 1: Subjective method for the measurement of sound attenuation
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 493.00 EUR more info
GB/T 7584.2-2026 (27/02/2026)
Acoustics—Hearing protectors—Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 493.00 EUR more info
GB/T 7584.3-2011 (30/12/2011)
Acoustics - Hearing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 319.20 EUR more info
GB/Z 7584.5-2026 (27/02/2026)
Acoustics—Hearing protectors—Part 5: Method for estimation of noise reduction using fitting by inexperienced test subjects
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 503.80 EUR more info
GB/T 7584.6-2026 (27/02/2026)
Acoustics—Hearing protectors—Part 6: Determination of sound attenuation of active noise reduction earmuffs
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 319.20 EUR more info
GB/T 7586-2018 (28/12/2018)
Earth-moving machinery—Hydraulic excavators—Test methods
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 597.20 EUR more info
GB/T 7588.1-2020 (14/12/2020)
Safety rules for the construction and installation of lifts—Part 1Passenger and goods passenger lifts
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 3 202.10 EUR more info
GB/T 7588.2-2020 (14/12/2020)
Safety rules for the construction and installation of lifts—Part 2: Design rules, calculations, examinations and tests of lift components
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 1 649.40 EUR more info
GB/T 7589-1987 (27/03/1987)
Code of Chinese ideograms set forinformation interchange--The 2nd supplementary set
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 1 356.20 EUR more info
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