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GB - Chinese national standards - Page 4532

Standards GB - Chinese national standards - Page 4532

Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level. Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document

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Preview GB/T 4541-2023 27.11.2023
GB/T 4541-2023

Position-indicating lights for life-saving appliances of marine

Standard published on 27.11.2023

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electronic design (pdf) (370.80 USD)


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370.80 USD


in 3 working days
Preview GB/T 45410.1-2025 28.3.2025
GB/T 45410.1-2025

Optics and photonics—Test methods for telescopic systems—Part 1: Basic characteristics

Standard published on 28.3.2025

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electronic design (pdf) (526.80 USD)


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526.80 USD


in 4 working days
Preview GB/T 45410.2-2025 28.3.2025
GB/T 45410.2-2025

Optics and photonics—Test methods for telescopic systems—Part 2: Binoculars

Standard published on 28.3.2025

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electronic design (pdf) (238.80 USD)


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238.80 USD


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Preview GB/T 45410.3-2025 28.3.2025
GB/T 45410.3-2025

Optics and photonics—Test methods for telescopic systems—Part 3:Telescopic sights

Standard published on 28.3.2025

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430.80 USD


in 4 working days
Preview GB/T 45410.5-2026 30.4.2026
GB/T 45410.5-2026

Optics and photonics—Test methods for telescopic systems—Part 5: Transmittance
Execute Date: november 2026

Standard published on 30.4.2026

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Preview GB/T 45410.7-2026 30.4.2026
GB/T 45410.7-2026

Optics and photonics—Test methods for telescopic systems—Part 7:Limit of resolution
Execute Date: november 2026

Standard published on 30.4.2026

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electronic design (pdf) (340.80 USD)


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340.80 USD


in 3 working days
Preview GB/T 45411.1-2025 28.3.2025
GB/T 45411.1-2025

Optics and photonics—Specifications for telescopic sights—Part 1:General-purpose instruments

Standard published on 28.3.2025

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Preview GB/T 45411.2-2025 28.3.2025
GB/T 45411.2-2025

Optics and photonics—Specifications for telescopic sights—Part 2:High-performance instruments

Standard published on 28.3.2025

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electronic design (pdf) (334.80 USD)


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334.80 USD


in 3 working days
Preview GB/T 45412.1-2025 28.3.2025
GB/T 45412.1-2025

Optics and photonics—Specifications for binoculars, monoculars and spotting scopes—Part 1: General purpose instruments

Standard published on 28.3.2025

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electronic design (pdf) (238.80 USD)


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238.80 USD


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Preview GB/T 45412.2-2025 28.3.2025
GB/T 45412.2-2025

Optics and photonics—Specifications for binoculars, monoculars and spotting scopes—Part 2: High performance instruments

Standard published on 28.3.2025

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electronic design (pdf) (238.80 USD)


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238.80 USD


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