1、UDC 665.733 :662.753 : O01 A : 620.193.471.2 : 678.7 : 614.8 DEUTSCHE NORM Methanolic lower layer FAM testing fluid for polymer materials Composition and requirements March 1984 DIN 51 604 Part 3 FAM-Prfflssigkeit, methanol hakige Unterphase, fr Polymerwerkstoffe; Zusammensetzung und Anforderungen I
2、n keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker. 1 Methanolic lower layer FAM testing fluid), 2) is used, unless decrees or relevant technical rules specify otherwise, for testi
3、ng polymer materials, e.g. elastomer materials, plastics components and coatings used in the motor car industry and in the petroleum distribution system which come into close contact with a lower phase which may be formed from mixed fuels containing alcohol when water is added. Examples of mixed fue
4、ls containing alcohol are those types of petrol consisting mainly of hydrocarbons which contain either more than 3% by volume of methanol or more than 5% byvolume of ethanol or, if both are mixed, more than 2% of methanol, with the total of the two percentages by volume exceeding 4%. When testing wi
5、th the methanolic lower layer FAM testing fluid, the swelling and extraction effect (change in mass and volume), the change in hardness, expansion and strength properties as specified in the relevant standards, e.g. DIN 53 476 and DIN 53 521, can be determined. Note. Under certain conditions, e.g. u
6、nder the influence of moisture and/or storage at low temperatures, methanolic fuel tends to separate forming a lower layer containing enriched methanol. The meth- anol content found in practice in the lower layer depends not only on the temperature and mois- ture content, but also, for example, on t
7、he inter- val between separation and establishment of equilibrium between the layers. This standard, which pays particular attention to the effect of moisture during the seperation stage, specifies a testing fluid, the methanol content of which cor- responds to average values obtained in practice. M
8、ethanolic lower layer FAM testing fluid did not correspond to any commercially available petrol at the time this standard was prepared, nor is it expected to correspond to such petrol in the future. On the basis of DIN 51 604 Part 1 and Part 2, it may be regarded as a testing fluid for assessing the
9、 behaviour of polymer materials with Scope and field of application regard to swelling and extraction effects and change in hardness, expansion and strength prop- erties when in contact with a lower layer formed from methanolic fuel if the latter contains the above-mentioned percentages of alcohol.
10、In order to ensure the homogeneity of the meth- anolic lower layer FAM testing fluid, the test teyperature should be above OC and not exceed 40 C as long as the test is carried out at ambient pressure. 2 Concept Methanolic lower layer FAM testing fluid is a mixture produced for testing purposes the
11、composition of which conforms to clause 4, and which complies with the requirements specified in clause 5. 3 Designation Designation of the methanolic lower layer FAM testing fluid (Cl: FAM testing fluid DIN 51 604 - C 4 Composition 4.1 %,O% by volume of methanol as specified in DIN 53 245. 4.2 40.0
12、% by volume of DIN 51 604 - A FAM testing fluid. 4.3 2.0% by volume of deionized water. I) FAM stands for Fachausschu Minerall- und Brenn- 2) Information about sources of supply is obtainable sto ffnormung. from: DIN-Bezugsquellen fr normgerechte Erzeugnisse im DIN Deutsches Institut fr Normung e. K
13、, Burggrafen- Strae 4-1 O, D-1 O00 Berlin 30. Continued on page 2 Beuth Verlag GrnbH. Berlin 30. has exclusive sale rights for German Standards (DIN-Normen) DIN 51 604 Part 3 Engl. Price group 5 Sales No. 0105 1 O. 85 Page 2 DIN 51 604 Part 3 5 Requirements 6 Safety notes 5.1 Density at 15C: = 0,798
14、 to O,802g/ml, deter- mined in accordance with DIN 51 757. 5.2 Refractive index at 20C: .,” = 1,375 to 1,377, determined in accordance with DIN 51 423 Part 2. When methanolic lower layer FAM testing fluid as speci- fied in this standard is used, the relevant safety regula- tions and decrees shall be
15、 observed, e.g. Verordnung ber Anlagen zur Lagerung, Ab fllung und Befrderung brenn- barer Flssigkeiten (Decree on the storage, transfer and transportation of flammable liquids), Verordnung ber gefhrliche Arbeitsstoffe (Decree on dangerous sub- stances). Standards referred to and other relevant docu
16、ments DIN 51 423 Part 2 DIN 51 604 Part 1 DIN 51 604 Part 2 DIN 51 757 DIN 53 245 DIN 53 476 DIN 53 521 Verordnung ber Anlagen zur Lagerung, Abfllung und Befrderung brennbarer Flssigkeiten of 27 February 1 980 and 3 May 1982, obtainable from Carl Heymanns Verlag KG, Gereonstrae 18-32, D-5000 Kln 1.
17、Verordnung ber gefhrliche Arbeitsstoffe, new edition of 1 1 February 1982, Bundesgesetzblatt (Federal Law Gazette) 1982, Part I, No.5, p. 144. Other relevant standards DIN 51 848 Part 1 Testing of petroleum products; measurement of refractive index using the Abbe refractometer FAM testing fluid for
18、polymer materials; composition and requirements Methanolic FAM testing fluid for polymer materials; composition and requirements Testing of mineral oils and related materials; determination of density Solvents for paints and varnishes; alcohols, requirements, testing Testing of plastics; determinati
19、on of resistance to liquids Testing of rubber and elastomers; determination of resistance to liquids, vapours and gases Testing of petroleum products; precision of test methods; general, terminology and its use in petroleum standards specifying requirements Explanatory notes This standard has been p
20、repared by Technical Committee NMP 632 Anforderungen an flssige Kraftstoffe of the Fach- ausschu Minerall- und Brenns to ffnormung of th e Normenausschu Materialprfung ( Ma ter i a I s Test i ng Standards Committee) in cooperation with Working Group Einheitliche Prfverfahren fr Membranwerkstoffe and the Koordinie- rungs-Gremium fr Prfmethoden ber das Verhalten von flssigen Medien gegenuber Elastomeren of the Deutsche Gesellschaft fr Minerallwissenschaft und Kohle-Chemie e. V. (German Society for Petroleum Science and Coal Chemistry). International Patent Classification G O1 N 33/44
