ISO 3679:2015
Determination of flash no-flash and flash point — Rapid equilibrium closed cup method
ISO 3679:2015 specifies procedures for flash point tests, within the temperature range of -30 °C to 300 °C, for paints, including water-borne paints, varnishes, binders for paints and varnishes, adhesives, solvents, petroleum, and related products. The procedures are used to determine whether a product will or will not flash at a specified temperature (flash no-flash Procedure A) or the flash point of a sample (Procedure B). When used in conjunction with a flash detector, ISO 3679:2015 is also suitable to determine the flash point of fatty acid methyl esters (FAME).
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Preparation of apparatus
7.1 General
7.2 Location of apparatus
7.3 Cleaning of the test cup assembly and accessories
7.4 Apparatus verification
8 Sampling
9 Sample handling
9.1 Petroleum products and fatty acid methyl esters
9.1.1 Subsampling
9.1.2 Samples liquid at ambient temperature
9.1.3 Samples solid or semi-solid at ambient temperature
9.1.4 Samples containing dissolved or free water that is not part of the product
9.2 Paints, varnishes, and related materials
10 Procedure
10.1 General
10.2 Procedure A — Flash no-flash test
10.3 Procedure B — Flash point determination
11 Calculation
11.1 Conversion of barometric pressure reading
11.2 Correction of the detected flash point to standard atmospheric pressure
12 Expression of results
13 Precision
13.1 General
13.2 Repeatability, r
13.3 Reproducibility, R
14 Test report
Annex A (normative) Flash point apparatus
Annex B (informative) Verification of apparatus
Annex C (informative) The use of a cup insert
Annex D (normative) Sub-ambient testing for manual apparatus without integral test cup cooling facilities
Annex E (normative) Temperature measuring device specifications
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Preparation of apparatus
7.1 General
7.2 Location of apparatus
7.3 Cleaning of the test cup assembly and accessories
7.4 Apparatus verification
8 Sampling
9 Sample handling
9.1 Petroleum products and fatty acid methyl esters
9.1.1 Subsampling
9.1.2 Samples liquid at ambient temperature
9.1.3 Samples solid or semi-solid at ambient temperature
9.1.4 Samples containing dissolved or free water that is not part of the product
9.2 Paints, varnishes, and related materials
10 Procedure
10.1 General
10.2 Procedure A — Flash no-flash test
10.3 Procedure B — Flash point determination
11 Calculation
11.1 Conversion of barometric pressure reading
11.2 Correction of the detected flash point to standard atmospheric pressure
12 Expression of results
13 Precision
13.1 General
13.2 Repeatability, r
13.3 Reproducibility, R
14 Test report
Annex A (normative) Flash point apparatus
Annex B (informative) Verification of apparatus
Annex C (informative) The use of a cup insert
Annex D (normative) Sub-ambient testing for manual apparatus without integral test cup cooling facilities
Annex E (normative) Temperature measuring device specifications
Bibliography