ISO 10349-8-2002 PDF

Full title and description

Photography — Photographic-grade chemicals — Test methods — Part 8: Determination of volatile matter (ISO 10349-8:2002). This part of ISO 10349 specifies a repeatable gravimetric procedure for determining the volatile matter content of photographic‑grade chemicals (oven drying and weighing of a test portion).

Abstract

ISO 10349-8:2002 defines a general test method to quantify volatile components in photographic chemicals by controlled drying (loss on drying) and reweighing. The method is intended to support quality control, stability assessment and specification of photographic-grade reagents.

General information

• Status: Published (international standard; last systematic review and confirmation recorded in 2021).
• Publication date: November 2002 (Edition 2).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 37.040.30 (Photographic chemicals).
• Edition / version: Edition 2 (2002).
• Number of pages: 2.

Scope

Specifies a general gravimetric test method (loss-on-drying style) for the determination of volatile matter in photographic‑grade chemicals. The scope covers test portion preparation, drying conditions, apparatus examples (weighing bottles, drying oven, analytical balance) and the calculation of volatile‑matter content expressed as mass fraction. The standard is intended for use where control of volatile matter affects product performance, storage and safety.

Key topics and requirements

• Definition of the test principle: gravimetric determination by oven drying and reweighing of a defined test portion.
• Apparatus and materials: examples include low‑form glass‑stoppered weighing bottles (≈50 ml), an oven capable of stable temperatures (typical drying ranges referenced), and a suitably precise analytical balance.
• Procedure essentials: sample mass, drying temperature and time, cooling in a desiccator, repeat weighing until constant mass, and calculation of volatile‑matter percentage.
• Normative references and series context: relies on general provisions of the ISO 10349 series (e.g., part 1) for sampling, reagents and glassware.
• Intended outcomes: provide a reproducible measure of volatile content to support QC, specification compliance and comparative testing between batches or suppliers.

Typical use and users

Used by photographic chemical manufacturers, quality‑control and analytical laboratories, standards organizations and suppliers of photographic reagents to determine and control volatile matter in raw materials and finished chemical products. Laboratories implementing the test require basic analytical‑chemistry equipment (oven, balance, desiccator) and documentation practices for repeatability.

Related standards

Part of the ISO 10349 series (Photographic‑grade chemicals — Test methods). Other parts in the series cover additional determinations (insoluble matter, halide content, alkalinity/acidity, reaction to ammoniacal silver nitrate, etc.). ISO/TC 42 (Photography) is the responsible technical committee.

Keywords

volatile matter; loss on drying; gravimetric method; photographic‑grade chemicals; ISO 10349; oven drying; analytical balance; QC; photography; test method.

FAQ

Q: What is this standard?

A: ISO 10349-8:2002 is an international standard titled "Photography — Photographic‑grade chemicals — Test methods — Part 8: Determination of volatile matter" that specifies a gravimetric test method for measuring volatile components in photographic chemicals.

Q: What does it cover?

A: It covers the principle and procedure for determining volatile matter by drying and weighing a defined test portion, including apparatus examples, drying practice and calculation of results. It is a general test method intended for quality control and specification purposes.

Q: Who typically uses it?

A: Photographic chemical manufacturers, QC and analytical laboratories, suppliers of photographic reagents, and standards bodies involved in photography‑related chemical testing.

Q: Is it current or superseded?

A: The 2002 edition (Edition 2) is published and was last reviewed and confirmed in 2021, so it remains the current published version unless a newer edition is issued after that review. The 2002 edition replaced an earlier 1992 edition.

Q: Is it part of a series?

A: Yes — it is Part 8 of the ISO 10349 series ("Photographic‑grade chemicals — Test methods"); the series contains multiple parts addressing different chemical tests and properties.

Q: What are the key keywords?

A: Volatile matter; loss on drying; gravimetric; photographic chemicals; ISO 10349; oven drying; analytical balance.