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GB - Chinese national standards
Page 3177
GB/T 34874.4-2025 (28/03/2025)
Geometrical product specifications (GPS)—X-ray three dimensional size measuring machines—Part 4: Evaluation of uncertainty in measurement
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 11 337.80 CZK more info
GB/T 34874.6-2020 (28/04/2020)
Geometrical product specifications (GPS)—X-ray three dimensional size measuring machines—Part 6: Testing method of workpieces
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 8 755.10 CZK more info
GB/T 34875-2017 (01/11/2017)
Shaft sealing systems for centrifugal and rotary pumps
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 79 519.50 CZK more info
GB/T 34876-2017 (01/11/2017)
Vacuum technology—Vacuum gauges—Evaluation of the uncertainties of results of calibrations by direct comparison with a reference gauge
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 7 205.60 CZK more info
GB/T 34877.1-2023 (28/12/2023)
Industrial fans—Determination of fan sound power levels under standardized laboratory conditions—Part 1: General overview
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 17 923.50 CZK more info
GB/T 34877.2-2023 (28/12/2023)
Industrial fans—Determination of fan sound power levels under standardized laboratory conditions—Part 2:Reverberant room method
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 10 433.90 CZK more info
GB/T 34877.3-2017 (01/11/2017)
Industrial fans—Determination of fan sound power levels under standardized laboratory conditions—Part3:Enveloping surface methods
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 9 788.20 CZK more info
GB/T 34877.4-2024 (28/05/2024)
Industrial fans—Determination of fan sound power levels under standardized laboratory conditions—Part 4:Sound intensity method
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 15 340.90 CZK more info
GB/T 34878-2017 (01/11/2017)
Vacuum technology—Valves—Leak test
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 6 689.00 CZK more info
GB/T 34879-2017 (01/11/2017)
Geometrical product specifications (GPS)—Metrological characteristics and guide to uncertainty of measurement for optical confocal microscopes
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 6 689.00 CZK more info
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