Measuring Instruments Product Certification
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Number
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Product Name
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GB/T7635 Code
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Standards
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1
|
Portable detectors for combustible gas
|
Product quality certification
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GB15322.3 Combustible gas detectors – Part3: Portable detectors for combustible gas with measuring range of 0～100%LEL
|
|
2
|
Portable detectors for combustible man-made gas
|
Product quality certification
|
GB15322.6 Combustible gas detectors – Part6: Portable detectors for combustible man-made gas
|
|
3
|
Self-contained detectors for combustible man-made gas
|
Product quality certification
|
GB15322.5 Combustible gas detectors – Part5: Self-contained detectors for combustible man-made gas
|
|
4
|
Self-contained detectors for combustible gas
|
Product quality certification
|
GB15322.2 Combustible gas detectors – Part2: Self-contained detectors for combustible gas with measuring range of 0～100%LEL
|
|
5
|
Bridge engineering
|
Safety (Safety features)
|
JTG/TJ21 Specification for Inspection and Evaluation of Load-bearing Capacity of Highway Bridges
|
|
JTG/TH21 Highway bridge technical condition assessment standard
|
|
YC4-4/1978 Test method for long-span concrete bridge
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