G101 General — 2025 California Fire Code

G101.1 Scope.¶

This appendix is used to convert from liquid to gas for cryogenic fluids.

G101.2 Conversion.¶

Table G101.2 shall be used to determine the equivalent amounts of cryogenic fluids in either the liquid or gas phase.

TABLE G101.2—WEIGHT AND VOLUME EQUIVALENTS FOR COMMON CRYOGENIC FLUIDS

CRYOGENIC FLUID	WEIGHT OF LIQUID OR GAS	WEIGHT OF LIQUID OR GAS	VOLUME OF LIQUID AT NORMAL BOILING POINT	VOLUME OF LIQUID AT NORMAL BOILING POINT	VOLUME OF GAS AT NTP	VOLUME OF GAS AT NTP
CRYOGENIC FLUID	Pounds	Kilograms	Liters	Gallons	Cubic feet	Cubic meters
Argon	1.000	0.454	0.326	0.086	9.67	0.274
Argon	2.205	1.000	0.718	0.190	21.32	0.604
Argon	3.072	1.393	1.000	0.264	29.71	0.841
Argon	11.628	5.274	3.785	1.000	112.45	3.184
Argon	10.340	4.690	3.366	0.889	100.00	2.832
Argon	3.652	1.656	1.189	0.314	35.31	1.000
Helium	1.000	0.454	3.631	0.959	96.72	2.739
Helium	2.205	1.000	8.006	2.115	213.23	6.038
Helium	0.275	0.125	1.000	0.264	26.63	0.754
Helium	1.042	0.473	3.785	1.000	100.82	2.855
Helium	1.034	0.469	3.754	0.992	100.00	2.832
Helium	0.365	0.166	1.326	0.350	35.31	1.000
Hydrogen	1.000	0.454	6.409	1.693	191.96	5.436
Hydrogen	2.205	1.000	14.130	3.733	423.20	11.984
Hydrogen	0.156	0.071	1.000	0.264	29.95	0.848
Hydrogen	0.591	0.268	3.785	1.000	113.37	3.210
Hydrogen	0.521	0.236	3.339	0.882	100.00	2.832
Hydrogen	0.184	0.083	1.179	0.311	35.31	1.000
Oxygen	1.000	0.454	0.397	0.105	12.00	0.342
Oxygen	2.205	1.000	0.876	0.231	26.62	0.754
Oxygen	2.517	1.142	1.000	0.264	30.39	0.861
Oxygen	9.527	4.321	3.785	1.000	115.05	3.250
Oxygen	8.281	3.756	3.290	0.869	100.00	2.832
Oxygen	2.924	1.327	1.162	0.307	35.31	1.000
Nitrogen	1.000	0.454	0.561	0.148	13.80	0.391
Nitrogen	2.205	1.000	1.237	0.327	30.43	0.862
Nitrogen	1.782	0.808	1.000	0.264	24.60	0.697
Nitrogen	6.746	3.060	3.785	1.000	93.11	2.637
Nitrogen	7.245	3.286	4.065	1.074	100.00	2.832
Nitrogen	2.558	1.160	1.436	0.379	35.31	1.000

APPENDIX G—CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS

TABLE G101.2—WEIGHT AND VOLUME EQUIVALENTS FOR COMMON CRYOGENIC FLUIDS—continued

CRYOGENIC FLUID	WEIGHT OF LIQUID OR GAS	WEIGHT OF LIQUID OR GAS	VOLUME OF LIQUID AT NORMAL BOILING POINT	VOLUME OF LIQUID AT NORMAL BOILING POINT	VOLUME OF GAS AT NTP	VOLUME OF GAS AT NTP
CRYOGENIC FLUID	Pounds	Kilograms	Liters	Gallons	Cubic feet	Cubic meters
LNGa	1.000	0.454	1.052	0.278	22.968	0.650
LNGa	2.205	1.000	2.320	0.613	50.646	1.434
LNGa	0.951	0.431	1.000	0.264	21.812	0.618
LNGa	3.600	1.633	3.785	1.000	82.62	2.340
LNGa	4.356	1.976	4.580	1.210	100.00	2.832
LNGa	11.501	5.217	1.616	0.427	35.31	1.000
For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 cubic foot = 0.02832 m3, °C = [(°F) – 32]/1.8, 1 pound per square inch atmosphere = 6.895 kPa. a. The values listed for liquefied natural gas (LNG) are “typical” values. LNG is a mixture of hydrocarbon gases, and no two LNG streams have exactly the same composition.

G101.2.1 Use of the table. To use Table G101.2, read horizontally across the line of interest. For example, to determine the number of cubic feet of gas contained in 1.0 gallon (3.785 L) of liquid argon, find 1.000 in the column entitled “Volume of Liquid at Normal Boiling Point.” Reading across the line under the column entitled “Volume of Gas at NTP” (70°F and 1 atmosphere/14.7 psia), the value of 112.45 cubic feet (3.184 m [3] ) is found.

G101.2.2 Other quantities. If other quantities are of interest, the numbers can be multiplied or divided to obtain the quantity of interest. For example, to determine the number of cubic feet of argon gas contained in a volume of 1,000 gallons (3785 L) of liquid argon at its normal boiling point, multiply 112.45 by 1,000 to obtain 112,450 cubic feet (3184 m [3] ).

APPENDIX G-4 2025 CALIFORNIA FIRE CODE

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE

APPENDIX H – HAZARDOUS MATERIALS MANAGEMENT PLAN

AND HAZARDOUS MATERIALS INVENTORY STATEMENTS

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building applications.)

Adopting Agency	BSC	BSC- CG	SFM		HCD			DSA		OSHPD						BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
Adopting Agency	BSC	BSC- CG	T-24	T-19*	1	2	1/AC	AC	SS	1	1R	2	3	4	5	5	5	5	5	5	5	5	5
Adopt Entire Chapter			X
Adopt Entire Chapter as amended (amended sections listed below)
Adopt only those sections that are listed below
[California Code of Regulations, Title 19, Division 1]
Chapter / Section

The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Fire Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same.

APPENDIX H-2 2025 CALIFORNIA FIRE CODE

Exceptions & meaning →