GB 11174-2025Liquefied petroleum gases (English PDF)

3 Terms and definitions

4 Classification and marking

5 Requirements and test methods

Foreword

This document was drafted in accordance with the rules given in GB/T 1.1-2020, Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.

This document replaces GB 11174-2011, Liquefied petroleum gases, and GB 19159-2012, Liquefied petroleum gas for vehicles. Compared with GB 11174-2011 and GB 19159-2012, apart from structural adjustments and editorial changes, the main technical changes are as follows:

a) the scope has been changed to "applies to liquefied petroleum gases produced by refineries and oil and gas fields for use as industrial fuel, domestic fuel and vehicle fuel" (see Clause 1; Clause 1 of GB 11174-2011; Clause 1 of GB 19159-2012);

b) terms and definitions have been added (see Clause 3);

c) the product varieties have been changed (see 4.1; 3.1 of GB 11174-2011; 3.1 of GB 19159-2012);

d) the odour requirement for liquefied petroleum gases has been changed (see 5.1; 4.1 of GB 11174-2011);

e) the referee method for the density item of industrial and domestic liquefied petroleum gases has been deleted (see Table 1 of GB 11174-2011);

f) the item C4 olefins volume fraction, with the requirement "report", has been added for industrial and domestic liquefied petroleum gases; test methods for the composition items of industrial and domestic liquefied petroleum gases have been added (see Table 1);

g) the item 1,3-butadiene mass fraction and its technical requirement have been added for industrial and domestic liquefied petroleum gases (see Table 1);

h) the item dimethyl ether volume fraction and its technical requirement have been added for industrial and domestic liquefied petroleum gases (see Table 1);

i) the sulfur content limit for industrial and domestic liquefied petroleum gases has been changed, optional test methods have been added and a referee method has been set (see Table 1; Table 1 of GB 11174-2011);

j) the technical requirement and test method for the hydrogen sulfide item of industrial and domestic liquefied petroleum gases have been changed (see Table 1; Table 1 of GB 11174-2011);

k) the item diolefins (including 1,3-butadiene) mole fraction for vehicle liquefied petroleum gas has been changed to diolefins mass fraction, optional test methods have been added and a referee method has been set (see Table 2; Table 1 of GB 19159-2012);

l) the item propane mass fraction and its technical requirement have been added for vehicle liquefied petroleum gas (see Table 2);

m) the item 1,3-butadiene mass fraction and its technical requirement have been added for vehicle liquefied petroleum gas (see Table 2);

n) the item dimethyl ether volume fraction and its technical requirement have been added for vehicle liquefied petroleum gas (see Table 2);

o) optional test methods have been added and a referee method has been set for the hydrogen sulfide item of vehicle liquefied petroleum gas (see Table 2);

p) the sulfur mass fraction limit for vehicle liquefied petroleum gas has been changed, optional test methods have been added and a referee method has been set (see Table 2; Table 1 of GB 19159-2012);

q) the test method for the evaporation residue mass fraction of vehicle liquefied petroleum gas has been changed (see Table 2; Table 1 of GB 19159-2012);

r) optional test methods have been added and a referee method has been set for the item C5 and higher hydrocarbon components of vehicle liquefied petroleum gas (see Table 2);

s) the temperature at which the minimum vapour pressure (gauge) of vehicle liquefied petroleum gas is 200 kPa has been changed (see Table 2; Table 1 of GB 19159-2012);

t) the test method for the free water item of vehicle liquefied petroleum gas has been changed and a referee method has been set (see Table 2; Table 1 of GB 19159-2012);

u) 1,3-butadiene mass fraction has been added to the factory batch inspection items for industrial and domestic liquefied petroleum gases, and dimethyl ether volume fraction to the factory periodic inspection items (see 6.1.1);

v) propane mass fraction and 1,3-butadiene mass fraction have been added to the factory batch inspection items for vehicle liquefied petroleum gas, and dimethyl ether volume fraction to the factory periodic inspection items (see 6.1.1);

w) the provisions on batching have been changed (see 6.2; 5.2 of GB 11174-2011 and 5.2 of GB 19159-2012);

x) the re-inspection rules have been changed (see 6.5; 5.5 of GB 11174-2011 and 5.5 of GB 19159-2012);

y) the provisions on marking, storage and transport have been changed (see Clause 7; Clause 6 of GB 11174-2011; Clause 6 of GB 19159-2012);

z) the provisions on sample retention have been changed, and the provisions on delivery and acceptance have been deleted (see Clause 8; Clause 7 of GB 11174-2011);

aa) the clause on safety has been deleted (see Clause 8 of GB 11174-2011);

bb) the determination of hydrocarbon composition, dimethyl ether, hydrogen sulfide and ethyl mercaptan content in liquefied petroleum gases has been added (see Annex B);

cc) the requirement "pressure gauges shall be calibrated periodically" has been added and the sampling method has been changed (see E.4.1; B.5.1 of GB 19159-2012);

dd) the air flow rate for testing propane-butane mixtures, and the tolerance intervals of the odorous test gas flow rate and air flow rate for all test scenarios, have been added (see G.5; Table E.5 of GB 19159-2012).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying patent rights.

This document was proposed by and is under the jurisdiction of the National Energy Administration.

The previous editions of this document and of the documents it replaces are as follows:

- first issued in 1989, first revised in 1997;

- second revision in 2011, incorporating the content of GB 9052.1-1998, Liquefied petroleum gas of oil and gas fields (previous edition of GB 9052.1-1998: GB 9052.1-1988);

- this is the third revision, incorporating the content of GB 19159-2012, Liquefied petroleum gas for vehicles (previous edition of GB 19159-2012: GB 19159-2003).