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HG/T 4293-2012Test method for speed and gamma of colour motion picture positive films (English PDF)

彩色电影正片感光度和格码测定方法

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

May 24, 2012

Implementation date

November 1, 2012

Scope

HG/T 4293-2012 is the English-translated version of 彩色电影正片感光度和格码测定方法.

The method is written for positive film produced by printing from a negative. It sits under the Chinese classification G80 and ICS 37.040.20, and it quotes GB/T 11500, GB/T 11501, GB/T 15061-1994 and GB/T 15769. Issued on 24 May 2012, it has applied since 1 November 2012.

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Document preview — HG/T 4293-2012

National Standard of the People's Republic of China

ICS: 37.040.20

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

Foreword
Scope
Normative references
About this standard
Classification and status

1 Foreword

HG/T 4293-2012 was issued by MIIT on 24 May 2012 and has been in force since 1 November 2012.

2 Scope

HG/T 4293-2012 is the Chinese chemical industry method for determining the speed and the gamma of colour motion picture positive film. It sets out the measurement procedure for these two characteristics and the test conditions under which it is run. The method is written for positive film produced by printing from a negative. It sits under the Chinese classification G80 and ICS 37.040.20, and it quotes GB/T 11500, GB/T 11501, GB/T 15061-1994 and GB/T 15769. Issued on 24 May 2012, it has applied since 1 November 2012.

3 Normative references

HG/T 4293-2012 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 15769

GB/T 11500

GB/T 11501

GB/T 15061-1994 — General specifications for sensitometry of silver halide photographic materials. Part 1: sensitometric exposure conditions of films to be exposured for incandescent tungsten and daylight

4 About this standard

Issued by: MIIT

English translation: about 15 pages

5 Classification and status

International classification (ICS): 37.040.20

Prefix HG/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

Normative references

Similar standards

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