JIS-H-1619-1988-ENG.pdf
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1、T L J I S H*lb19 88 4933608 0051259 1i I UDC 669.295 : 669.295.5 : 543.062 : 546.1 1 .O62 ,JIS Q) JAPANESE INDUSTRIAL STANDARD Methods for Determination of Hydrogen in Titanium and Titanium Alloys Translated and Published by Japanese Standards Association Printed in Japan Copyright Japanese Standard
2、s Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:28:47 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS H * l b l 88 I 4933608 005l260 B UDC 669.295: 669.295.5: 543.062: 546.11.062 JAPA
3、NESE INDUSTRIAL STANDARD J I S Methods for Determination of Hydrogen H 1619-1988 in Titanium and Titanium Alloys 1. Scope This Japanese Industrial Standard specifies the methods for determination of hydrogen in titanium and titanium alloys. Remark: The units given in with the International System of
4、 Units (SI) and appended for informative reference. 1 in this Standard are in accordance Further, the part where conventional units and units by SI given in 1 thereafter are given in this Standard shall be converted to units specified in Appendix on and after January 1st , 1991, 2. General Matters G
5、eneral matters common to the methods of chemical analysis shall be in ac- cordance with JIS H 1611 and JIS Z 2614. 3, Classification of Determination Methods The method for determination of hydrogen shall be in accordance with either one of the following methods: (1) Vacuum Heating-Constant Volume M
6、anometric Method This method applies to the sample of 0.0001 wt % and over to 0.02 wt % excl. in hydrogen content. (2) Vacuum Heating-Gas Chromatography This method applies to the sample of 0.0001 wt % and over to 0.02 wt % excl. in hydrogen content. (3) Inert Gas Fusion-Gas Chromatography This meth
7、od applies to the sample of 0.0001 wt % and over to 0.02 wt % excl. in hydrogen content. 4. Vacuum Heating-Constant Volume Manometric Method 4.1 Summary A sample is heated with an electric resistance heating furnace in a vacuum and hydrogen together with other gases are extracted. They are collected
8、 in a definite volume and the pressure thereof is measured. Hydrogen in this collected gas is oxidized with heated copper (II) oxide to make water. After absorbing it in diphosphorus pentoxide, the pressure is measured. Applicable Standards: JIS H 1611-General Rule for Chemical Analysis of Titanium
9、JIS Z 2614-General Rules for Determination of Hydrogen in Metallic Materials . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:28:47 MDTNo reproduction or networking permitted without li
10、cense from IHS -,-,- JIS H*Iib19 88 4933b08 005L2bL T I Hydrogen content wt % 2 H 1619-1988 Weighing-out amount of sample g 4.2 Materials and Reagents Materials -and reagents shall be in accordance with 3.2.2 (1) of JIS Z 2614. 4.3 Apparatus For the apparatus, the gas extraction part.( 1)(2) of 3.2.
11、2 (2) in JIS Z 2614 is connected to the gas analysis part of 3.3.1 (2) in JIS Z 2614 to be used. Notes () For the heating apparatus , a tubular electric resistance heating furnace is used and a high frequency induction heating system is not used. (2) A furnace tube prepared by sealing one end of a q
12、uartz tube of 25 to 40 mm in bore diameter and 300 to 400 mm in length and fitting another end thereof to a water cooling glass cap by grinding is used as the extraction furnace. The furnace tube is equipped with a side tube for connecting the furnace tube to a gas extraction pump and a side tube fo
13、r filling a sample. An example of the extraction furnace is given in Attached Fig. 1. 4.4 ,Weighing out Amount of Sample A sample shall be weighed out to the nearest 1 mg in accordance with Table 1. Table 1. Weighing out Amount of Sample 4.5 Operation 4.5.1 Preparatory Operation The preparatory oper
14、ation shall be carried out in accordance with the following procedures : (1) Connect a furnace tube to a water cooling glass cap by using vacuum grease, insert the furnace tube into the heating part of a tubular electric resistance heating furnace and fix the heating furnace so that the bottom part
15、of the furnace tube is positioned at the center of the heating part, (2) Carry out the operation in accordance with the procedures of 5.1.3 (1) (b) to 5.1.3 (2) (d) in JIS Z 2614(3). Note (3) In the operation of 5.1.3 (2) (c) to 5.1.3 (2) (d) in JIS Z 2614, operate a high frequency induction oscilla
16、tor and a blower, heat a graphite crucible at a degassing temperature and degas it for several hours. Thereafter, lower it to a gas extraction temperature. However, instead of this operation, pass electric current to a tubular electric re- sistance heating furnace and heat the furnace tube at 1100 t
17、o 115OOC in gas extraction temperature. 0,0001 and over to 0.01 excl.1 O. 30 0.01 and over to 0.02 excl. I o. 10 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:28:47 MDTNo reproduction
18、or networking permitted without license from IHS -,-,- J I S H*LbL 88 4733608 00512b2 L Hydrogen content wt % 0.0001 and over to 0.005 excl. 0.005 and over to 0.02 excl. 3 H 1619-1988 Weighing out amount of sample g O. 30 o. 10 4.5.2 Determination Operation The determination operation shall be carri
19、ed out in accordance with 5.1.4 (2) of JIS Z 2614. However, though a graphite crucible is heated to a gas extraction temperature in the operation of 5.1.4 (2) (a-1) in JIS Z 2614, a furnace tube is kept at a gas extraction temperature instead of this. The gas extraction temperature shall be 1100 to
20、1150% and gas collection time shall be 15 minutes. 4.6 Blank Test The same determination operation as that of a sample shall be carried out without using the sample. 4.7 Calculation The calculation shall be as prescribed in 5.1.4 (3) of JIS Z 2614. accordance with 5.1.4 (4) of JIS Z 2614. However, c
21、onversion factor shall be preliminarily calculated in 5. Vacuum Heating-Gas Chromatography 5.1 Summary A sample is heated by using a graphite crucible in a vacuum and hydrogen is extracted together with other gases. After collecting the extracted gas into a gas buret by using a Toepler pump, hydroge
22、n is separated from other gases by passing the collected gas through a separation column, conducted to a heat conductivity detector and the variation of heat conductivity due to hydrogen is measured. 5.2 Materials and Reagents The materials and reagents shall be as pre- scribed in 3.2.1 (1) of JIS Z
23、 2614 and as follows: (1) Argon Argon of not less than 99.99 vol % (2) Hydrogen Hydrogen of not less than 99.99 vol % (3) Synthetic zeolite A type-calcium salt (for instance, molecular sieve 5 A) of 355 to 250 p m (equivalent to 40 to 60 mesh) 5.3 Apparatus For the apparatus, a mercury ejector pump
24、for gas collection, a Toepler pump for gas collection, a gas buret, and a gas chromatograph are successively connected to the gas extraction part of 3.2.1 (2) in JIS Z 2614. separation column filled by synthetic zeolite 5.2 (3) and a heat con- ductivity detector shall be used. An example of the appa
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