1、DEUTSCHE NORM November 1998 Heat transfer fluids I DIN - I 51522 Requirements and testing I ICs 75.1 O0 Descriptors: Heat transfer fluids, requirements, testing. Supersedes December 1995 edition. Wrmetrgermedien Q - Anforderungen, Prfung In keeping with current practice in standards published by the
2、 International Organization for Standardization (ISO), a comma has been used throughout as the decimal marker. Foreword This standard has been prepared by NMP Technical Committee 651 Anforderungen an Schmierle und sonstige le of the Fachausschu Minerall- und Brennstoffnormung of the Normenausschu Ma
3、terial- prfung (Materials Testing Standards Committee). Amendments This standard differs from the December 1995 edition as follows: a) This standard has been revised in form and substance. b) An additional method for determining the carbon residue (DIN EN IS0 10370) is referred to. c) The normative
4、references have been updated. Previo us edit ions DIN 51522: 1982-11: 1995-12. 1 Scope This standard specifies requirements and methods of test for unused heat transfer fluids (family QI) fluids or heat transfer fluids, for short). As regards their use, reference is made to DIN 4754, VDI-Richtlinie
5、(VDI Code of practice) 3033, the Unfallverhtungsvorschrift Wrmebertragungsanlagen mit organischen Wrmetrgern (Accident prevention regulation on heat transfer systems operating on organic heat transfer fluids) (VBG 64), and the Druckbehlterverordnung (German Pressure Vessels Regulation). 2 Normative
6、references This standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the titles of the publications are listed below. For dated references, subsequent amendments to or revisions of an
7、y of these publications apply to this standard only when incorporated into it by amendment or revision. For undated references, the latest edition of the publication referred to applies. I) The letter Q denotes heat transfer fluids as classified in IS0 6743-1 2. Continued on pages 2 and 3. Translati
8、on by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text. No pari of this translation may be reproduced without the prior permission of Ref. No. DIN 51 522 : 1998-1 . V Deutsches Institut fur Normung e VI Berlin Luth Verlag GmbH, D-10772
9、Berlin, hac the exclusive right of sale for German Standards (DIN-Nonen) English price group 05 Sales No 0105 07 99 Page 2 DIN 51 522 : 1998-1 1 DIN 4754 DIN 51005 DIN 51400-6 DIN 51528 DIN 51551-1 DIN 51558-1 DIN 51562-1 DIN 51577-3 DIN 51757 DIN 51 777-1 DIN 51794 DIN 53015 DIN EN 22719 DIN EN IS0
10、 2160 DIN EN IS0 4259 DIN EN IS0 6245 DIN EN IS0 10370 IS0 301 6 : 1974 IS0 6743-1 2 : 1989 Heat exchangers operating on organic fluids - Safety requirements and testing Thermal analysis - Concepts Determination of sulfur content (total sulfur content) of mineral oils and fuels by X-ray fluorescence
11、 analysis Determination of thermal stability of unused heat transfer oils Determination of Conradson carbon residue of lubricants and liquid fuels Determination of neutralization number of petroleum products by colour indicator titration Determination of kinematic viscosity using the Ubbelohde visco
12、meter - Apparatus and measurement procedure Determination of chlorine and bromine contents of less than 1 O00 mg/kg in petroleum products by wavelength dispersive X-ray fluorescence spectrometry (XRS) Determination of density of petroleum products Determination of water content of petroleum hydrocar
13、bons and solvents by the Karl Fischer method (direct method) Determination of ignition temperature of petroleum hydrocarbons Measurement of viscosity using the Hppler falling sphere viscometer Petroleum products and lubricants - Determination of flash point by the Pensky-Martens closed cup method (I
14、S0 271 9 : 1988) Petroleum products - Corrosiveness to copper - Copper strip test (IS0 21 60 : 1986, including Corrigendum 1 : 1993) Petroleum products - Determination and application of precision data in relation to methods of test (IS0 4259 : 1992 + Corr. 1 : 1993) Petroleum products - Determinati
15、on of ash (IS0 6245 : 1993) Petroleum products - Determination of carbon residue by the micro method (IS0 10370 : 1993) Petroleum products - Determination of pour point Lubricants, industrial oils and related products (class L) - Classification - Familiy Q (Heat transfer fluids) VDI-Richtlinie 3033
16、Wrmebertragungsanlagen mit organischen Wrmetrgern; Betreiben, Warten und Instandsetzen (Heat transfer systems operating on organic fluids; operation, maintenance and repair) Unfallverhtungsvorschrift Wrmebertragungsanlagen mit organischen Wrmetrgern (VBG 64), October Druckbehlterverordnung (German P
17、ressure Vessels Regulation), BGBI. (German Federal Law Gazette) I, 1989, Verordnung ber Anlagen zur Lagerung, Abfllung und Befrderung brennbarer Flssigkeiten zu Lande (German Regulation on the storage, handling and transport of flammable liquids by land), as of 27 February 1 9802) 19937 NO. 20, pp.
18、843-869 3 Concept Heat transfer fluids are substances in the liquid or gaseous phase that are used for heat transfer. 4 Designation Designation of a heat transfer fluid (Q): Heat transfer fluid DIN 51522 - Q z, Obtainable from Carl Heymanns Verlag KG, Luxemburger Str. 449, D-50939 Kln. Page 3 DIN 51
19、 522 : 1998-1 1 Property Appearance Requirement Testing as in1) Visual check Clear (free from suspended matter) Closed cup flash point, in “C I 1002) I DIN EN 22719 Chlorine content, as a percentage by mass Water content, in mg/kg I I500 I DIN 51777-1 I0,Ol DIN 51577-3 I Neutralization number (water
20、 soluble acids), in mg KOH/g Property Kinematic viscosity, in mm2/s, at O “C at 40 “C at 100 “C I0,2 Testing as in DIN 51562-1 or DIN 53015 I DIN 51558-1 Thermal stability Total sulfur content, as a percentage by mass I DIN 51528 I0,2 I DIN 51400-6 Corrosive effect on copper I Degree of corrosion 2
21、I DIN EN IS0 2160 I) Verification of compliance of heat transfer fluids with the specifications of this standard shall be based on DIN EN IS0 4259, using the methods of test listed in this table. 2, In exceptional cases, heat transfer fluids having a lower flash point may be used. If this does not e
22、xceed 1 O0 “C, the Verordnung ber Anlagen zur Lagerung, Abfllung und Befrderung brennbarer Flssigkeiten zu Lande is to be complied with and, in addition, the Druckbehalterverordnung if this point is below 55 “C. 6 Additional properties to be specified Any additional properties of heat transfer fluid
23、s (cf. table 2) shall be specified by the supplier in addition to those listed in table 1. Table 2: Additional properties of heat transfer fluids Pour point, in “C I IS0 301 6 I Density at 15 “C, in kg/m3 I DIN 51 757 I Oxide ash content, as a percentage by mass I DIN EN IS0 6245 I ignition temperat
24、ure, in OC I DIN 51794 I Conradson carbon residue of heat transfer fluids based on mineral oil, as a percentage by mass I DIN 51 551 -1 or DIN EN IS0 10370 I The following properties required for the design of heat transfer systems shall be specified, together with the intended temperature range, an
25、d indicating the test method to be used: a) density (e.g. as in DIN 51 757); b) specific heat capacity (e.g. taking into account DIN 51 005); c) kinematic viscosity (e.g. as in DIN 51 562-1); d) thermal conductivity; e) vapour pressure; f) permitted film temperature; g) permitted initial temperature.
