BS EN ISO 3679:2022 – TC 2024

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Tracked Changes. Determination of flash point. Method for flash no-flash and flash point by small scale closed cup tester

Published By	Publication Date	Number of Pages
BSI	2024	83

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This document describes three procedures (A, B and C) covering determinations of flash no-flash and flash point. Rapid equilibrium procedures A and B are applicable to flash no-flash and flash point tests of paints, including water-borne paints, varnishes, binders for paints and varnishes, adhesives, solvents, petroleum products including aviation turbine, diesel and kerosene fuels, fatty acid methyl esters and related products over the temperature range –3 0 °C to 300 °C. The rapid equilibrium 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 the flash detector (A.1.6), this document is also suitable to determine the flash point of fatty acid methyl esters (FAME). The validity of the precision is given in Table 2. Non-equilibrium procedure C is applicable to petroleum products including aviation turbine, diesel and kerosine fuels, and related petroleum products, over the temperature range –20 °C to 300 °C. The non-equilibrium procedure is automated to determine the flash point. Precision has been determined over the range 40 °C to 135 °C. For specifications and regulations, procedures A or B are routinely used (see 10.1.1).

PDF Catalog

PDF Pages	PDF Title
1	30485180
47	A-30441178
48	undefined
50	European foreword Endorsement notice
52	Foreword
53	Introduction
55	1 Scope 2 Normative references 3 Terms and definitions
56	4 Principle 4.1 Rapid equilibrium procedures A and B
57	4.2 Non-equilibrium procedure C 5 Reagents and materials 6 Apparatus
58	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
59	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
60	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 Procedures 10.1 General 10.2 Procedure A — Flash no-flash test
61	10.3 Procedure B — Flash point determination
63	10.4 Procedure C — Flash point determination 11 Calculation 11.1 Conversion of barometric pressure reading 11.2 Correction of the detected flash point
64	12 Expression of results 13 Precision 13.1 General 13.2 Repeatability, r 13.3 Reproducibility, R
65	13.4 Relative bias between the procedures C and B 14 Test report
67	Annex A (normative) Flash point apparatus
72	Annex B (normative) Verification of apparatus
76	Annex C (informative) The use of a cup insert
77	Annex D (normative) Sub-ambient procedures A and B for manual apparatus
78	Annex E (normative) Temperature measuring device specifications
79	Annex F (informative) Flash point values of chemicals
80	Bibliography