GOST-5542-1987-E1994-ENG.pdf
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1、 USSR STATE STANDARD NATURAL FUEL GASES FOR INDUSTRIAL AND DOMESTIC USE SPECIFICATIONS GOST 5542-87 Official Edition STANDARDS PUBLISHING HOUSE Moscow Editor L. V. Afanasyenko Technical Editor V. N. Prusakova Proof-reader A. S. Chernousova -,-,- UDC 662.69: 543.27: 006.354 Group 11 USSR STATE STANDA
2、RD NATURAL FUEL GASES FOR INDUSTRIAL AND DOMESTIC USE Specifications GOST 5542-87 OKP (All-Union Product Classification Code) 02 7110 Date of introduction 01.01.88 This Standard applies to natural fuel gases used as raw stock and fuel for industrial and domestic applications. Mandatory requirements
3、for product quality are specified in clause 1.1 (the table, characteristics 4, 5 and 8) and in Section 2. 1. SPECIFICATIONS 1.1. Natural fuel gases shall comply with the physical and chemical characteristics listed in the following table. Characteristics Norm Test method 1. Low calorific value, at 2
4、0C and 101.325 kPa, Mj/m3), minimum 31.8 (7 600) GOST 27193-86 GOST 22667-82 GOST 10062-75 2 Range of (high) Wobbe numbers, MJ/cu.m (kcal/m3)41.2-54.5 (9 850-13 000) GOST 22667-82 3 Tolerable deviation of Wobbe number from rated value, %, maximum 5 4 Weight content of hydrogen sulfide, g/m3, maximum
5、0.02 GOST 22387 2-83 5. Weight content of mercaptan sulfur, g/m3, maximum 0.036 GOST 22387 2-83 6. Content of oxygen, vol. %, maximum 1.0 GOST 223873-77 GOST 23781-87 Official Edition Reprinting is prohibited Standards Publishing House, 1987 Standards Publishing House, 1994 Correction is inserted (I
6、US Standards Information Catalog 7-2001) p. 2 GOST 5542-87 Cont. Characteristics Norm Test method 7. Mechanical impurities, g/m3, maximum 0.001 GOST 22387.4-77 8. Odor intensity under gas content in air of 1 vol. %, number, minimum 3 GOST 22387.5-77 Notes: 1. If agreed with the customer, it is allow
7、ed to supply gas for use as fuel containing a larger percentage of hydrogen sulfide and mercaptan sulfur along separate gas lines. 2. Characteristics specified above in points 2, 3 and 8 only pertain to gas for domestic applications. In the case of gas for industrial use, the norm for clause 8 is se
8、t on approval by the customer. 3. In individual gas distribution systems, the rated value of Wobbe number is set within the limits as per point 2 of the above table on approval by the customer. 1.2. The dew point at the gas reception point shall be lower than the temperature of the gas. 1.3. The pre
9、sence of water and liquid hydrocarbons in gas is not allowed, but is optional until 01.01.89. 1.4. Safety requirements 1.4.1. Regarding toxicological characteristics, natural fuel gases are regarded as substances of the 4th hazard class according to GOST 12.1.007-76. 1.4.2. Natural fuel gases belong
10、 to the group of substances capable of forming dangerously explosive mixtures with air. The explosive concentration range of mixtures of natural gas (taken as methane) with air is as follows: lower limit - 5 vol.%, upper limit - 15 vol.%. With natural gas of a specific composition, the explosive con
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