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JB/T 5522-1991Optical transfer function - Interchangeable lenses for 35 mm cameras (English PDF)

光学传递函数用于35mm照相机用可换镜头

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

July 16, 1991

Implementation date

July 1, 1992

Scope

JB/T 5522-1991 is the English-translated version of 光学传递函数用于35mm照相机用可换镜头.

JB/T 5522-1991 is the Chinese machinery industry standard covering optical transfer function - Interchangeable lenses for 35 mm cameras. It was issued on 16 July 1991 and has been in force since 1 July 1992, as a first edition.

The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 1991 edition.

The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.

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Document preview — JB/T 5522-1991

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

[Preview only]
1 Scope
2 Normative references
3 Terms and definitions
3.1 Type
3.2 Basic parameters
4 Types and basic parameters
4.1 Types
4.2 Model designation
4.3 Nominal operating conditions
4.4 Safety and hygiene
4.5 Welding
4.6 Bridge (After crane operation mechanism assembled)
4.7 Assembly
4.8 Electrical control equipment
4.9 Steel pretreatment and painting
5 Technical requirements
5.1 General requirements
5.2 Safety requirements
5.3 Cold and hot working forming
5.4 Rated load test
5.5 Whole machine noise test
5.6 Static rigidity test
5.7 Dynamic load test
5.8 Crane span deviation
5.9 Diagonal difference of bridge
6 Test methods
6.1 Exit-factory inspection
6.2 Type inspection
7 Inspection rules
7.1 Marking
7.2 Packaging, transportation and storage
7.3 Transportation
7.4 Storage
8 Marking, packaging, transportation and storage
9 标志和标签 9 Marking and labeling

1 Foreword

JB/T 5522-1991 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 16 July 1991 and has been in force since 1 July 1992.

The JB/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

The document runs to 15 pages in English translation.

2 Scope Preview

JB/T 5522-1991 carries no ICS number and no Chinese Standard Classification code.

This catalogue holds 21,922 other JB/T standards.

Of the 5,298 JB/T standards that do carry an ICS number, 1,460 (28%) fall under ICS 25, in the field of manufacturing engineering.

3 About this standard

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

English translation: about 15 pages

4 Related standards

Standards on related subjects:

DY/T 8-2023 — Technical requirements and measurement methods for digital cinema LEDauditorium

JB/T 8248.2-2025 — Measurement of Photographic Lens Characteristics - Part 2: Measurement of Effective Aperture and Relative Aperture

JB/T 9408-2023 — Technical specifications for 35 mm motion-picture projection anamorphic attachment lens

JB/T 8260-2022 — Neutral density glass filters for photography

5 Classification and status

Chinese Standard Classification (CCS): N 33

Prefix JB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Cited by

GB/T 4315.2-2009Optical transfer function -- Part 2: Directives of measurement

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