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1、AS 1180 Australian Standard Methods of test for hose made from elastomeric materials Second Group: Methods 7A, 7B, 7C, 7D, 7F, 7G, 7J, 8A, 8B (metric units) AS 1180 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 The following scientific, industrial and governmental organizations and depart
2、ments were officially represented on the committee which prepared this standard: Associated Chambers of Manufactures of Australia Australian and New Zealand Railways Conferences Country Roads Board, Victoria Electricity Trust of South Australia Government Stores Department, N.S.W. The Institution of
3、 The Rubber Industry Metropolitan Water, Sewerage and Drainage Board, Sydney Petroleum Marketing Engineers Advisory Committee Society of Automotive Engineers, Australasia State Electricity Commission of Victoria This standard is under continuous preparation by Committee RU/1, Rubber Hose, and method
4、s are being progressively approved for publication. Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments
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8、01. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 AS 1180November 1972 2nd List LIST OF METHODS The methods so far published are: No of MethodDateTitle 1180.1June 1972Dimensions 1180.2June 1972Tensile Strength and Elongation 1180.3June 1972Accelerated Ageing 1180.4AJune 1972Ply AdhesionDe
9、ad Weight Method 1180.4BJune 1972Ply AdhesionAutographic Method 1180.5AJune 1972Hydrostatic PressureBurst Test 1180.5BJune 1972Hydrostatic PressureProof Test 1180.5CNovember 1972Hydrostatic PressureChange-in-Length Test 1180.5DJune 1972Hydrostatic PressureLeak Test 1180.5EJune 1972Hydrostatic Pressu
10、reExpansion and Distortion Test 1180.6June 1972Impulse Test 1180.7ANovember 1972Resistance of Hose Lining and Cover to Liquids 1180.7BNovember 1972Resistance to LiquidsPhysical 1180.7CNovember 1972Resistance to Steam 1180.7DNovember 1972Resistance to Detergent 1180.7FNovember 1972Resistance to Hose
11、Lining and Cover to Ozone 1180.7GNovember 1972Corrosion Resistance 1180.7HNovember 1972Electrical Conductivity 1180.7JNovember 1972Resistance to Vacuum 1180.8ANovember 1972Resistance to Cold Flexing of Hose Assembly 1180.8BNovember 1972Resistance to Cold Flexing of Hose Lining and Cover Accessed by
12、UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 1AS 1180.7ANovember 1972 STANDARDS ASSOCIATION OF AUSTRALIA Australian Standard Methods of Test for HOSE MADE FROM ELASTOMERIC MATERIALS METHOD 7A. RESISTANCE OF HOSE LINING AND COVER TO LIQUIDS 1 SCOPE. This method determines the effect of specified liqu
13、id(s) on the lining and cover components of hose. 2 PRINCIPLE. Test pieces of lining and cover are immersed for a given time in the liquid after which the changes in volume and hardness are determined. 3 MATERIALS AND APPARATUS. (i)Liquids as specifieda fresh portion for each test. (ii) Vessels, ine
14、rt to the liquids specified, of suitable size and shape to contain the test pieces and capable of being sealed to prevent the escape of the liquid. (iii) Such apparatus as is required or specified for determining volume and hardness. (See AS 1180.9A.) 4 TEST PIECES. Prepare three rectangular test pi
15、eces of lining and of cover 50 25 mm as follows: (i)Carefully remove from the hose sample the cover and lining, using, if necessary, very small amounts of a suitable solvent. Where solvent is used dry up to 36 h. (ii) Buff the test specimen only to the extent necessary to obtain smooth faces or to r
16、educe to a maximum thickness of 1.6 mm. The thickness of test specimen shall be uniform to within 0.13 mm while that of specimens prepared from the same sample shall be of the same thickness within 0.25 mm. (iii) From the test specimens of lining and cover cut the three test pieces of each to the re
17、quired dimensions with one stroke using a suitable die. NOTE: Should it be impossible to obtain test pieces having a buffed thickness of 0.80 mm or greater, the manufacturer may be obliged to furnish a sample of the cured elastomer taken from the same quality of rubber from which the hose was made a
18、nd having a cure equivalent to that to which the hose was subjected. 5 CONDITIONING OF TEST SPECIMEN AND PIECES. Conditioning shall be at 20 2C and 65 + 10 per cent relative humidity for at least 4 h. a Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 AS 1180.7ANovember 19722 6 PROCEDURE. 6.
19、1 For Test Materials Immiscible or Non-Reactive with Water. (i)Determine the hardness of the test pieces by the test of AS 1180.9A and obtain the mean values for both the lining and the cover. (ii) Weigh each test specimen or piece to the nearest milligram in air (W), and then in distilled water (W2
20、), ensuring removal of all air bubbles. Bubbles can be eliminated by adding a trace of surface-active agent, e.g. detergent, to the water. (iii) Dry each test specimen or piece by blotting with filter paper or a textile fabric that does not deposit lint. (iv) Place the three specimens or pieces sepa
21、rated in the container and add test material (at least 15 times the volume of the test specimens or pieces) with an excess such as to keep them totally immersed. NOTES: 1.Place only test specimens or pieces from the same vulcanizote in any one container. 2.If necessary provide a means for holding th
22、e test specimens or pieces completely below the surface. (v) Allow to stand at a temperature of 20 2C for the specified time and remove the pieces. (vi) Remove the specimens or pieces and remove the test material from each. NOTES: 1.If the immersion liquid is appreciably volatile at room temperature
23、 the maximum time for transference of each test specimen or piece after removal should be 30 seconds. 2.The method of removing the surplus will vary with the nature of the material. With mobile liquids such as iso-octane and benzene, remove and quickly wipe the test specimen or piece with a filter p
24、aper or piece of textile which does not deposit lint. Some difficulty may be experienced in completely removing viscous, non-volatile oils by this method and it may be necessary to dip the test piece quickly in a suitable volatile liquid such as acetone which does not deposit lint. (vii)Repeat step
25、(i). (viii)Transfer each test specimen or piece to a tared, stoppered weighing bottle and determine its weight in air to the nearest milligram (W3). Remove from the bottle and immediately determine its weight (W4) in distilled water at 20 2C. 6.2 For Test Materials Miscible (or Reactive) with Water.
26、 Follow the procedure in 6.1 above with the following amendments: (i)If the test material is not too viscous or volatile conduct weighings W2and W4in the test material instead of in water and use these weighings to determine V by Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 3AS 1180.7ANo
27、vember 1972 formula (1) in Clause 7. Weighing W4should be made in a fresh portion of the test material. (ii) If step (i) above is not practicable use the procedure in 6.1 above except to omit the final weighing in water. Use the three weighings to calculate V by formula (2) in Clause 7. 7 CALCULATIO
28、NS. Calculate the change in volume V using the appropriate formula below: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(1)V (W3 W4) (W1 W2) W1 W2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(2)V (W3 W1) d(W1 W2) where W1= the initial weight of the t
29、est specimen or piece in air W2= the initial weight of the test specimen or piece in water W3= the weight of the test specimen or piece in air after immersion W4= the weight of the test specimen or piece in water after immersion d= the density of the test material, in g/ml, at 20 2C NOTE: Formula (2
30、) may be only approximate if the immersion liquid is a mixture, because the density of the absorbed liquid may differ from that of the bulk. Also the density of any material extract from the rubber may differ from that of the immersion liquid. Percentage change in volume = V 100. 8 REPORT. Report th
31、e following: (i)The average value(s) for the percentage change in volume. (ii) Any discoloration of the test material or formation of sediment at the conclusion of the test. (iii) Any deficiencies in the test specimens or pieces (e.g. cracks, delamination). (iv) The average values for the change in
32、hardness. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 AS 1180.7ANovember 19724 This test method was approved on behalf of the Council of the Standards Association of Australia on 12 September 1972. This method was issued in draft form for public review as Doc. 1751. Accessed by UNIVERSI
33、TY OF SOUTH AUSTRALIA on 23 Jan 2008 1AS 1180.7BNovember 1972 STANDARDS ASSOCIATION OF AUSTRALIA Australian Standard Methods of Test for HOSE MADE FROM ELASTOMERIC MATERIALS METHOD 7B. RESISTANCE TO LIQUIDSPHYSICAL 1 SCOPE. This method determines the effect of specified liquid(s) on the physical pro
34、perties of the hose proper. 2 PRINCIPLE. The hose is filled with the specified liquid(s) sealed, allowed stand for a period, drained and inspected and assessed for physical damage. 3 MATERIALS AND APPARATUS. (i)Liquids as specifieda fresh portion for each test. (ii) Such apparatus as is specified to
35、 determine the physical properties stipulated. 4 TEST SPECIMENS. Lengths of hose 300 to 330 mm net length complete with fittings. 5 PROCEDURE. (i)Set up the test specimen as shown in Fig. 1 and fill with the specified liquid. (ii) Seal both ends and allow to stand for the specified time at 20 2C and
36、 65 10 per cent r.h. (iii) Drain and immediately apply such physical tests as are specified. 6 REPORT. Report the result of the specified physical tests. a Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 AS 1180.7BNovember 19722 Fig. 1. HOSE SET-UP This test method was approved on behalf of
37、 the Council of the Standards Association of Australia on 12 September 1972. This method was issued in draft form for public review as Doc. 1751. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 1AS 1180.7CNovember 1972 STANDARDS ASSOCIATION OF AUSTRALIA Australian Standard Methods of Test f
38、or HOSE MADE FROM ELASTOMERIC MATERIALS METHOD 7C. RESISTANCE TO STEAM 1 SCOPE. This method determines the resistance to steam in respect of blistering and other defects to the hose proper and the change suffered by components in respect of tensile strength, and elongation. It is technically identic
39、al with Appendix D of AS K155Rubber Hose for Steam-cleaning Machines. 2 PRINCIPLE. The hose is subjected to steam under pressure for two separate periods and the effects on the hose proper and its components are assessed. 3 APPARATUS. (i)A supply of saturated steam at an average pressure of 0.5 MPa.
40、 (ii) A machine for determining tensile and elongation properties as described in AS 1180.2. 4 TEST SPECIMENS. Two test specimens cut from the hose sample having a minimum free length of 400 mm and capable of being fitted to the steam supply without distortion. 5 PROCEDURE. (i)Clamp or couple one en
41、d of one test specimen to the steam supply such that it is allowed to hang vertically without distortion. Fit a bleeding valve to the lower end and adjust to discharge any condensation. (ii) Apply saturated steam at an average pressure of 0.5 mPa for 7 1 h. (iii) Allow stand for 14 1 h at room tempe
42、rature. (iv) Repeat step (ii). (v) Allowstandtogetherwiththeuntreatedspecimenat202Cand 65 10 per cent r.h. for 16 to 96 h and inspect for blistering or other visible defects. (vi) Submit both the untreated and steam-treated specimen to the test of AS 1180.2. 6 CALCULATION. Calculate the change in te
43、nsile strength and elongation as follows: Change in characteristic, per cent = O A O 100 a Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 AS 1180.7CNovember 19722 where O = characteristic value of untreated sample A = same characteristic value after steam treatment. 7 REPORT. Report any si
44、gn of blistering or visible defect after steam treatment and the percentages of change in respect of both the tensile strength and the elongation properties. This test method was approved on behalf of the Council of the Standards Association of Australia on 12 September 1972. This method was issued
45、in draft form for public review as Doc. 1751. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 23 Jan 2008 1AS 1180.7DNovember 1972 STANDARDS ASSOCIATION OF AUSTRALIA Australian Standard Methods of Test for HOSE MADE FROM ELASTOMERIC MATERIALS METHOD 7D. RESISTANCE TO DETERGENT 1 SCOPE. This method dete
46、rmines the effect of detergent on the lining components of the hose. It is technically identical with Appendix E of AS K155Rubber Hose for Steam- cleaning Machines. 2 PRINCIPLE. Test pieces of the hose lining are refluxed in a detergent for a period and the change in tensile strength and elongation
47、is determined. 3 REAGENT AND APPARATUS. 3.1 Reagent. Test Solution. The test solution shall contain 10 g of the following detergent mixture per litre of solution: Parts by weight Sodium hydroxide (NaOH) Sodium metasilicate (Na2SiO3) Sodium carbonate (anhyd.) (Na2CO3) Sodium hexa-meta-phosphate (NaPO
48、3)6 Coconut diethanolamide Sodium dodecyl benzene sulphonate Nonionic or amphoteric detergent 40 20 20 10 2.5 7.5 2.5 102.5 NOTE: Nonionic detergents such as the condensation product of ethylene oxide and aromatic polyhydric alcohol are available under various trade names such at Triton X100, Triton
49、 N100, Ante-ox CO630, and Lissapol N100. Amphoteric detergents exhibiting nonionic, anionic or cationic properties, depending on the pH of the solution, containing complex fatty amido or cyclic imidine carboxylate groups, are available under various trade names such as Antaron FC-34, Miranol CM Conc. and Armeen Z. 3.2 Apparatus. (i)The apparatus required for determining the characteristic specified in the particular standard. (ii) A glass reflux apparatus of suitable size, consisting of