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Appendix G — CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS

Section G101 — GENERAL

2025 California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-07-27 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

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

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

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

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

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.

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

APPENDIX H-2 2025 CALIFORNIA FIRE CODE

on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

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▸ Contents — 2025 California Fire Code (Title 24, Part 9)
2025 California Fire Code (Title 24, Part 9)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REQUIREMENTS
  4. Chapter 4 — EMERGENCY PLANNING AND PREPAREDNESS
  5. Chapter 5 — FIRE SERVICE FEATURES
  6. Chapter 6 — BUILDING SERVICES AND SYSTEMS
  7. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  8. Chapter 8 — INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHI…
  9. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  10. Chapter 10 — MEANS OF EGRESS
  11. Chapter 11 — CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS
  12. Chapter 12 — ENERGY SYSTEMS
  13. Chapter 20 — AVIATION FACILITIES
  14. Chapter 21 — DRY CLEANING
  15. Chapter 22 — COMBUSTIBLE DUST-PRODUCING OPERATIONS
  16. Chapter 23 — MOTOR FUEL-DISPENSING FACILITIES AND REPAIR GARAGES
  17. Chapter 24 — FLAMMABLE FINISHES
  18. Chapter 25 — FRUIT AND CROP RIPENING
  19. Chapter 26 — FUMIGATION AND INSECTICIDAL FOGGING
  20. Chapter 27 — SEMICONDUCTOR FABRICATION FACILITIES
  21. Chapter 28 — LUMBER YARDS AND AGRO-INDUSTRIAL, SOLID BIOMASS A…
  22. Chapter 29 — MANUFACTURE OF ORGANIC COATINGS
  23. Chapter 30 — INDUSTRIAL OVENS
  24. Chapter 31 — TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTH…
  25. Chapter 32 — HIGH-PILED COMBUSTIBLE STORAGE
  26. Chapter 33 — FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
  27. Chapter 34 — TIRE REBUILDING AND TIRE STORAGE
  28. Chapter 35 — WELDING AND OTHER HOT WORK
  29. Chapter 36 — MARINAS
  30. Chapter 37 — COMBUSTIBLE FIBERS
  31. Chapter 38 — RESERVED
  32. Chapter 39 — PROCESSING AND EXTRACTION FACILITIES
  33. Chapter 40 — STORAGE OF DISTILLED SPIRITS AND WINES
  34. Chapter 41 — TEMPORARY HEATING AND COOKING OPERATIONS
  35. Chapter 48 — MOTION PICTURE AND TELEVISION PRODUCTION STUDIO S…
  36. Chapter 49 — REQUIREMENTS FOR WILDLAND-URBAN INTERFACE FIRE AR…
  37. Chapter 50 — HAZARDOUS MATERIALS—GENERAL PROVISIONS
  38. Chapter 51 — AEROSOLS
  39. Chapter 52 — RESERVED
  40. Chapter 53 — COMPRESSED GASES
  41. Chapter 54 — CORROSIVE MATERIALS
  42. Chapter 55 — CRYOGENIC FLUIDS
  43. Chapter 56 — EXPLOSIVES AND FIREWORKS
  44. Chapter 57 — FLAMMABLE AND COMBUSTIBLE LIQUIDS
  45. Chapter 58 — FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS
  46. Chapter 59 — FLAMMABLE SOLIDS
  47. Chapter 60 — HIGHLY TOXIC AND TOXIC MATERIALS
  48. Chapter 61 — LIQUEFIED PETROLEUM GASES
  49. Chapter 62 — ORGANIC PEROXIDES
  50. Chapter 63 — OXIDIZERS, OXIDIZING GASES AND OXIDIZING CRYOGENI…
  51. Chapter 64 — PYROPHORIC MATERIALS
  52. Chapter 65 — PYROXYLIN (CELLULOSE NITRATE) PLASTICS
  53. Chapter 66 — UNSTABLE (REACTIVE) MATERIALS
  54. Chapter 67 — WATER-REACTIVE SOLIDS AND LIQUIDS
  55. Chapter 80 — REFERENCED STANDARDS
  56. Appendix Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON US…
  57. Appendix A — BOARD OF APPEALS
  58. Appendix B — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
  59. Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
  60. Appendix C — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
  61. Appendix CC — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
  62. Appendix D — FIRE APPARATUS ACCESS ROADS
  63. Appendix E — HAZARD CATEGORIES
  64. Appendix F — HAZARD RANKING
  65. ▸ Appendix G — CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS
    Overview
    1. Section G101 — GENERAL
  66. Appendix H — HAZARDOUS MATERIALS MANAGEMENT PLANS AND HAZARDOU…
  67. Appendix I — FIRE PROTECTION SYSTEMS—NONCOMPLIANT CONDITIONS
  68. Appendix J — BUILDING INFORMATION SIGN
  69. Appendix K — CONSTRUCTION REQUIREMENTS FOR EXISTING AMBULATORY…
  70. Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SY…
  71. Appendix M — HIGH-RISE BUILDINGS—RETROACTIVE AUTOMATIC SPRINKL…
  72. Appendix N — INDOOR TRADE SHOWS AND EXHIBITIONS
  73. Appendix O — VALET TRASH AND RECYCLING COLLECTION IN GROUP R-2…
  74. Appendix P — TEMPORARY HAUNTED HOUSES, GHOST WALKS AND SIMILAR…
  75. Appendix Q — COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZ…

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