JIS-Z-1903-1995-ENG.pdf
e -. J I S ZXL903 95 W 4933b08 053088b 306 JIS UDC 620.197.6:669.14:665.767 Ø JAPANESE INDUSTRIAL STANDARD Petrolatum paste for corrosion protection JIS 2 1903-1995 Translated and Published by Ja panese Standards Association Printed in Japan 10 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS ZSL903 95 4933608 0530887 242 In the event of any doubt arising, the original Standard in Japanese is to be final authority. . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S ZU1903 95 W 4933608 0530888 189 = TJDC 620.197.6: 669.14: 665.767 JAPANESE INDUSTRIAL STANDARD J I S Petrolatum paste foi corrosion protection Z 1903-1995 1. Scope This Japanese Industrial Standard specifies the petrolatum paste for corrosion protection to be used for corrosion protection of steel tubes, steel bars, and other irons or steels. Remarks: The standards cited in this Standard are shown in Attached Table 1. 2. Definitions as follows: The definitions of the major terms in this Standard shall be petrolatum paste for corrosion protection surface preparation material of the petrolatum tapes for corrosion protection as specified in JIS Z 1902, which is paste-like substance where the corrosion inhibitor, the filler or the like are added in the wax distilled from the residual oil after distillation, under reduced pressure of the petroleum, and refined thereafter. consistency The parameter to express the hardness of the petrolatum paste for corrosion protection (hereafter referred to as “sample“) one unit of which is 0.1 mm of the depth where the specified cone is advanced verti- cally in the test under the specified condition. melting point The temperature when the molten sample is adhered to the mercury part of the thermometer to be solidified, heated under the specified condition, and the initial drop falls from the thermometer, flash point the oil vapor and the air is instantaneously combusted with generating sparks when the sample is heated under the specified condition and a small flame is brought close to the oil surface. evaporation The amount of the substance evaporated which is expressed by per cent when the sample is heated under the specified condition. sag resistance The nature where the coated film does not slide down to the reference line when the test piece coated with the sample is kept upright for one hour at the specified temperature. low temperature adhesive property the sample is adhered to the surface of the test piece at low temperature. water-paste substitutability The nature where the sample is substituted with the water adhered to the surface of the test piece to prevent corrosion. salt water immersion test method The test method to examine the nature of the sample to prevent the rust of the test piece when the test piece coated with the sample is immersed in salt water for the specified period of time. salt spray test method The test method to examine the nature of the sample to prevent rust of the test piece when the test piece coated with the sample is left for the specified period of time in the device sprayed salt water. Substance to be used as the The lowest temperature of the sample where the mixture of The nature where the coated film of Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- . . J I S Z+L903 95 M 4933608 0530889 015 M Kind Class 1 2 Z 1903-1995 Use For general purpose (il) corrosiveness The nature of the sample to corrode metal. Class 1 3. Kind - classified according to the use as shown in Table 1 . The kind of the petrolatum paste for corrosion protection shall be Class 2 Table 1. Kind - No generation of rust Class 2 I For underwater purpose 4. Quality be as specified in Table 2 when tested in accordance with 5. The quality of the petrolatum paste for corrosion protection shall Table 2. Quality Item Consistency Melting point “C Flash point ' C Evaporation % Sag resistance Low temperature adhesive property Water-paste substitutability Salt water immersion Salt spray Corrosiveness (mg/cm2) 3 . 0 or under No sliding down of the film Class A I - Class A Steel f 0.2 Stainless steel f 0.1 Zinc Brass f 0.2 f 0.2 Aluminium f0.2 5. Test method 5.1 General items K 0050. General items common to the tests shall comply with JI$ The figures shall be rounded off in compliance with JIS Z 8401. 5.2 Method for sampling K 2251. The method for sampling shall comply with JIS Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- - J I S Z+L903 95 = 4933b08 0530890 837 3 Z 1903-1995 5 . 3 5.3.1 Test piece Common items to test piece Cold rolled steel sheet test piece prepared as specified in Fig. 1. The cold rolled steel sheet test shall be (a) Material SPCC-SB as specified in JIS G 3141 (b) (c) Dimensions Hanging holes to enable hanging. 1 . 0 to 2 . 0 (thickness) x 60 (longitudinal) x 80 (transverse) mm Two holes of 3 mm in diameter shall be made so as Fig. 1. Cold rolled steel plate test piece 93 7 Unit: mm 93 Blast test piece Fig. 2. (a) Material SS400 as specified in JIS G 3101 The blast test piece shall be prepared as specified in (b) Dimensions 3.2 (thickness) x 150 (longitudinal) x 70 (transverse) mm (c) Hanging hole One hole of 6 mm in diameter shall be made so as to enable hanging. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S Zxï903 95 W 4933608 O530893 773 W 4 Z 1903-1995 t ! ! Fig. 2. Blast test piece -k-Q 35 J. Surface to 50 x 50 o , be measured A J. Surface to 50 x 50 o , be measured A 10 - c 70 Unit: mm 5.3.2 Preparation of test piece (i) Preparation of cold rolled steel sheet test piece sheet test piece shall be prepared as follows: The cold rolled steel (1.1) Solvent and material (a) (b) Methanol As specified in JIS K 8891 (c) Abrasive (1.2) Handling of test piece pair of tweezers or gloves so as not to leave finger prints or other corrosive stains on the test piece. Solvent specified in JIS K 2201 Grade 3 (volatile soybean oil) or Grade 4 (mineral spirit) as A, P240 as specified in JIS R 6251 or JIS R 6252 The test piece shall be handled by using a clean (1.3) Procedure for preparation (1.3.1) Preliminary cleaning Wash off the rust-proof oil, dirt or dust adhered to the test piece while slightly rubbing the test piece with gauze in the solvent, and dry the test piece by air-drying. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I 5 Z*I1403 95 = Y933608 0530892 bOT ( 1.3.2) (1.3.3) (1.3.4) 5 Z 1903-1995 Preliminary polishing (a) (b) (c) Finish polishing (a) Polish each surface of the test piece in the longitudinal direction with abrasives. Simultaneously polish the edges and hanging holes. Wipe the polishing powder with gauze, and immerse the test piece in the solvent. Take out the test piece from the solvent, and after drying, immedi- ately repeat the operation of (1.3.2) (a) by using a new polishing materiel to provide a new polished surface. Wipe the polishing powder with gauze, and immerse the test piece in the solvent. (b) Finish cleaning (a) Take out the test piece from the solvent, wipe the stains on the surface with new gauze wetted by the solvent until no stains are left on the gauze, and immerse the test piece in the new solvent. Take out the test piece from the solvent. Dry it with hot wind or the like, and then, immediately immerse the test piece in the boiling methanol which is separately prepared for one min or longer, and then, dry it with hot wind or the like. (b) Preparation of blast test piece follows. The blast test piece shall be prepared as Solvent and material (a) Solvent As specified in 5.3.2 (1.1) (a) (b) Methanol As specified in 5.3.2 (1.1) (b) (c) Abrasive G30 as specified in JIS G 5903 Handling of test piece pair of tweezers or gloves so as not to leave finger prints or other corrosive stains on the test piece. Procedure of preparation (a) Pretreatment The test piece shall be handled by using a clean Wash off the rust-proofoil, dirt or dust adhered to the test piece while slightly rubbing the test piece with gauze in the solvent and dry the test piece. prepare the surface roughness to Ra7 to Ralo. Immerse the test piece in the boiling metha- nol at least for one min. And then, dry the test piece with hot wind or the like. Protection of rear surface and end surfaces The rear surface and end surfaces which are not tested shall be protected with pressure- sensitive adhesive tapes or coatings as necessary. (b) Grinding (c) Cleaning before test Blast one side of the test piece with the abrasive to (d) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S 2*:1903 95 m 4933608 0530893 546 6 Z 1903-1995 5.3.3 pared as follows. Preparation of coated test piece The coated test piece shall be pre- (i) Material and instruments (a) Pressure-sensitive adhesive tape (b) Bar coater As specified in JIS C 2338 of 75 pm in thickness Round rod of diameter 20 mm x 150 mm (c) Wet gauge As specified in JIS K 5400 (d) Hanging wire Wire of about 1 mm in diameter as specified in JIS G 4308 or JIS H 4554, the shape shall be as indicated in Fig. 3, and the hanging span is 90 mm to 100 mm in the overall length. (e) Hanging rack Capable of hanging the test piece upright. Fig. 3. Hanging wire (2) Coating method Attach the pressure-sensitive adhesive tapes in double to each end of the test piece which is specified in 5.3.1 and prepared in compliance with 5.3.2 (l). Apply the petrolatum paste for corrosion protec- tion preliminarily to the space between the pressure-sensitive adhesive tapes to the thickness of 150 pm or over, and then, make the surface flat by using the bar coater heated at 1OO'C. Confirm by using the wet gauge that the thickness of the coating of the petrolatum paste for corrosion protection is 100 pm to 150 pm. Note (l) The width of the pressure-sensitive adhesive tape shall be selected according to the targeted test. 5 . 4 Consistency for consistency as specified in JIS K 2235. The test for consistency shall comply with the test method 5.5 Melting point method for melting point as specified in 5.3.2 of JIS K 2235. The test for melting point shall comply with the test 5.6 Flash point for Cleveland open type flash point as specified in JIS K 2265. The test for flash point shall comply with the test method Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS Za1903 95 m 4933608 0530894 482 m 5.7 7 2 1903-1995 Remarks: The flash point of the raw material petrolatum shall be mea- sured in the case of foaming. However, it shall be clearly stated together with the measured value that the measurement is made on the raw material petrolatum. Evaporation 5.7.1 Summary 107°C for 3 h, and the evaporation shall be obtained from the reduced amount of the sample. The sample shall be heated in a thermostat air bath of 5.7.2 Device and instruments Device and instruments shall be as follows: (i) Sample container (2) Explosion-proof type thermostat air bath Explosion-proof type thermo- (3) Dry vessel As specified in Fig. 153 of JIS K 2839. stat air bath capable of keeping the temperature at 107 I 2°C. Z 0701. Sealed container containing the desiccant as specified in JIS 5.7.3 Procedure of test The procedure of the test shall be as follows: (i) (2) Clean 3 sample containers and weigh the mass, put each sample of about 1.5 g into them and weigh to the minimum 1 mg. Keep the thermostat air bath at 107 k 2'C in advance, and place the sample container containing the sample in the thermostat air bath. Then, close the door, and leave it at 107 k 2°C for 3 h. Take out the sample container, and leave it in the dry vessel for 30 min or over, and weigh the mass to the minimum 1 mg. 5.7.4 Calculation and results following formula, and the average value of 3 test results shall be rounded off to The evaporation shall be calculated by the tenth's place. w = wi- w z x 100 W i where, W : evaporation (%) Wi : mass of the sample before the test (mg) W z : mass of the sample after the test (mg) 5.8 Sag resistance 5.8.1 Summary 40°C for 1 h, and the presence or absence of the sagging of the coated film shall be examined. The test piece coated with the sample shall be heated at 5.8.2 ments shall be as follows: Test piece, device and instruments The test piece, device and instru- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 07:41:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS ZX1903 95 = 4933608 O530895 319 8 2 1903-1995 (i) Test piece (2) Pressure-sensitive adhesive tape As specified in JIS 2 1522. (3) Hanging wire and hanging rack As specified in 5.3.3. Three test pieces of cold rolled steel sheet as specified in 5 . 3 . 1 (i) and prepared in compliance with 5.3.2. (4) Explosion-proof type thermostat air bath Explosion-proof type thermo- stat air bath capable of keeping the temperature at 40 f 2°C. 5.8.3 Procedure of test The procedure of the test shall be as follows: (i) (2) (3) Attach the pressure-sensitive adhesive tape on the portion of the test piece, between the lower end and the part 25 mm apart from the lower end. Apply the sample of 100 pm to
