IS 19206 : Part 4 : 2025/ISO 10349-4 : 1992 Photography - Photographic Grade Chemicals - Test Methods - Part 4 Determination of Residue after Ignition

ICS 37.040.30

CHD 05

NATIONAL FOREWORD

This Indian Standard, which is identical to ISO 10349-4 : 1992 'Photography - Photographic grade chemicals - Test methods - Part 4: Determination of residue after ignition' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards, on the recommendation of the Electroplating Chemicals and Photographic Materials Sectional Committee and approval of the Chemical Division Council.

The Committee responsible for formulation of the standards on photographic materials decided to adopt ISO 10349 series issued by International Organization for Standardization, under the general title 'Photography - Photographic grade chemicals - Test methods'.

The standard has been published in various parts. This part (Part 4) specifies a general test method for the determination of the residue after ignition for photographic-grade chemicals.

Other parts of this standard are:

Part 1 General

Part 2 Determination of matter insoluble in water

Part 3 Determination of matter insoluble in ammonium hydroxide solution

Part 5 Determination of heavy metals and iron content

Part 6 Determination of halide content

Part 7 Determination of alkalinity or acidity

Part 8 Determination of volatile matter

Part 9 Reaction to ammoniacal silver nitrate

Part 10 Determination of sulfide content

Part 11 Determination of specific gravity

Part 12 Determination of density

Part 13 Determination of pH

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appears referring to this standard, they should be read as 'Indian Standard'.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.