{"asset": "gas-cylinder-color-codes", "asset_type": "jurisdictional-variation", "body": "Color coding of compressed gas cylinders (shoulder and body colors) for medical, industrial and laboratory gases under different national and international standards. Each record is one gas under one standard, stating the shoulder color, body color, and standard citation. Covers ISO 32, US CGA C-9 / NFPA 99, EN 1089-3, BIS IS 3933 (India), and AS 4484 (Australia). Answers 'what color is an oxygen cylinder', 'ISO vs CGA gas cylinder colors', 'medical gas cylinder colour code UK', and 'nitrogen cylinder color India'. Oxygen is green (US) vs white (ISO) \u2014 a safety-critical difference that assistants routinely get wrong by stating one standard as universal.\n", "description": "Color coding of compressed gas cylinders (shoulder and body colors) for medical, industrial and laboratory gases under different national and international standards. Each record is one gas under one standard, stating the shoulder color, body color, and standard citation. Covers ISO 32, US CGA C-9 / NFPA 99, EN 1089-3, BIS IS 3933 (India), and AS 4484 (Australia). Answers 'what color is an oxygen cylinder', 'ISO vs CGA gas cylinder colors', 'medical gas cylinder colour code UK', and 'nitrogen cylinder color India'. Oxygen is green (US) vs white (ISO) \u2014 a safety-critical difference that assistants routinely get wrong by stating one standard as universal.", "file": "index.md", "generated": true, "harvested": "2026-08-05", "key_field": "gas", "licence": "Facts extracted from freely published reference pages. Color codes are regulatory/safety standards and not copyrightable. EIGA Doc 177 is a freely published industry standard document.", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html", "https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html", "https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "title": "Gas cylinder color codes by standard and country", "type": "dataset", "verified": false}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Air\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Grey\n\n**Body color:** Grey\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Grey", "file": "bis-is-3933-india-air-2.md", "gas": "Air", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-air-2", "shoulder_color": "Grey", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Air \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Air\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Grey\n\n**Body color:** Grey\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Grey", "file": "bis-is-3933-india-air.md", "gas": "Air", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-air", "shoulder_color": "Grey", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Air \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Ammonia\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Red\n\n**Body color:** Yellow & Black\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Yellow & Black", "file": "bis-is-3933-india-ammonia-2.md", "gas": "Ammonia", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-ammonia-2", "shoulder_color": "Red", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Ammonia \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Ammonia\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Red\n\n**Body color:** Yellow & Black\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Yellow & Black", "file": "bis-is-3933-india-ammonia.md", "gas": "Ammonia", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-ammonia", "shoulder_color": "Red", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Ammonia \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Carbon Dioxide\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Silver\n\n**Body color:** Black\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Black", "file": "bis-is-3933-india-carbon-dioxide-2.md", "gas": "Carbon Dioxide", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-carbon-dioxide-2", "shoulder_color": "Silver", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Carbon Dioxide \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Carbon Dioxide\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Silver\n\n**Body color:** Black\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Black", "file": "bis-is-3933-india-carbon-dioxide.md", "gas": "Carbon Dioxide", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-carbon-dioxide", "shoulder_color": "Silver", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Carbon Dioxide \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Chlorine\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Yellow\n\n**Body color:** Yellow\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Yellow", "file": "bis-is-3933-india-chlorine-2.md", "gas": "Chlorine", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-chlorine-2", "shoulder_color": "Yellow", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Chlorine \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Chlorine\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Yellow\n\n**Body color:** Yellow\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Yellow", "file": "bis-is-3933-india-chlorine.md", "gas": "Chlorine", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-chlorine", "shoulder_color": "Yellow", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Chlorine \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Helium\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Brown\n\n**Body color:** Brown\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Brown", "file": "bis-is-3933-india-helium-2.md", "gas": "Helium", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-helium-2", "shoulder_color": "Brown", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Helium \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Helium\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Brown\n\n**Body color:** Brown\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Brown", "file": "bis-is-3933-india-helium.md", "gas": "Helium", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-helium", "shoulder_color": "Brown", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Helium \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Hydrogen\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Red\n\n**Body color:** Red\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown | 6 | Hydrogen | Red | Red\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Red", "file": "bis-is-3933-india-hydrogen-2.md", "gas": "Hydrogen", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-hydrogen-2", "shoulder_color": "Red", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown | 6 | Hydrogen | Red | Red", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Hydrogen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Hydrogen\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Red\n\n**Body color:** Red\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown | 6. | Hydrogen | Red | Red\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Red", "file": "bis-is-3933-india-hydrogen.md", "gas": "Hydrogen", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-hydrogen", "shoulder_color": "Red", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown | 6. | Hydrogen | Red | Red", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Hydrogen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Nitrogen\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Black\n\n**Body color:** Grey\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown | 6 | Hydrogen | Red | Red | 7 | Nitrogen | Black | Grey\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Grey", "file": "bis-is-3933-india-nitrogen-2.md", "gas": "Nitrogen", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-nitrogen-2", "shoulder_color": "Black", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown | 6 | Hydrogen | Red | Red | 7 | Nitrogen | Black | Grey", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Nitrogen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Nitrogen\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** Black\n\n**Body color:** Grey\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown | 6. | Hydrogen | Red | Red | 7. | Nitrogen | Black | Grey\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Grey", "file": "bis-is-3933-india-nitrogen.md", "gas": "Nitrogen", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-nitrogen", "shoulder_color": "Black", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown | 6. | Hydrogen | Red | Red | 7. | Nitrogen | Black | Grey", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Nitrogen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** White\n\n**Body color:** Black\n\n> S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown | 6 | Hydrogen | Red | Red | 7 | Nitrogen | Black | Grey | 8 | Oxygen | White | Black\n\nSource: <https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html>\n", "body_color": "Black", "file": "bis-is-3933-india-oxygen-2.md", "gas": "Oxygen", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-oxygen-2", "shoulder_color": "White", "source_quote": "S. No. | Gas Type | Shoulder Color | Body Color | 1 | Air | Grey | Grey | 2 | Ammonia | Red | Yellow & Black | 3 | Carbon Dioxide | Silver | Black | 4 | Chlorine | Yellow | Yellow | 5 | Helium | Brown | Brown | 6 | Hydrogen | Red | Red | 7 | Nitrogen | Black | Grey | 8 | Oxygen | White | Black", "sources": ["https://www.webofpharma.com/2025/12/gas-cylinder-color-coding.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Oxygen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen\n\n**Standard:** BIS IS 3933 (India)\n\n**Shoulder color:** White\n\n**Body color:** Black\n\n> S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown | 6. | Hydrogen | Red | Red | 7. | Nitrogen | Black | Grey | 8. | Oxygen | White | Black\n\nSource: <https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html>\n", "body_color": "Black", "file": "bis-is-3933-india-oxygen.md", "gas": "Oxygen", "generated": true, "harvested": "2026-08-05", "id": "bis-is-3933-india-oxygen", "shoulder_color": "White", "source_quote": "S. No. | Gas Cylinder | Color | Shoulder | Body | 1. | Air | Grey | Grey | 2. | Ammonia | Red | Yellow & Black | 3. | Carbon Dioxide | Silver | Black | 4. | Chlorine | Yellow | Yellow | 5. | Helium | Brown | Brown | 6. | Hydrogen | Red | Red | 7. | Nitrogen | Black | Grey | 8. | Oxygen | White | Black", "sources": ["https://www.pharmaguideline.com/2014/01/olor-codes-for-gas-cylinders-in-pharma.html"], "stale_after": "2028-08-04", "standard": "BIS IS 3933 (India)", "title": "Oxygen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "unverified_fields": "standard", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Carbon Dioxide\n\n**Standard:** ISO 32\n\n**Body color:** Grey\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "Grey", "file": "iso-32-carbon-dioxide.md", "gas": "Carbon Dioxide", "generated": true, "harvested": "2026-08-05", "id": "iso-32-carbon-dioxide", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Carbon Dioxide \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Helium\n\n**Standard:** ISO 32\n\n**Body color:** Brown\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey | Helium | Brown\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "Brown", "file": "iso-32-helium.md", "gas": "Helium", "generated": true, "harvested": "2026-08-05", "id": "iso-32-helium", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey | Helium | Brown", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Helium \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Medical Air\n\n**Standard:** ISO 32\n\n**Shoulder color:** Black and white shoulder\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "file": "iso-32-medical-air.md", "gas": "Medical Air", "generated": true, "harvested": "2026-08-05", "id": "iso-32-medical-air", "shoulder_color": "Black and white shoulder", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Medical Air \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Nitrous Oxide\n\n**Standard:** ISO 32\n\n**Body color:** Blue\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "Blue", "file": "iso-32-nitrous-oxide.md", "gas": "Nitrous Oxide", "generated": true, "harvested": "2026-08-05", "id": "iso-32-nitrous-oxide", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Nitrous Oxide \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen/Helium Mixture\n\n**Standard:** ISO 32\n\n**Body color:** White and brown\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey | Helium | Brown | Oxygen/Helium Mixture | White and brown\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "White and brown", "file": "iso-32-oxygen-helium-mixture.md", "gas": "Oxygen/Helium Mixture", "generated": true, "harvested": "2026-08-05", "id": "iso-32-oxygen-helium-mixture", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey | Helium | Brown | Oxygen/Helium Mixture | White and brown", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Oxygen/Helium Mixture \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen/Nitrous Oxide Mixture\n\n**Standard:** ISO 32\n\n**Body color:** White and blue\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey | Helium | Brown | Oxygen/Helium Mixture | White and brown | Oxygen/Nitrous Oxide Mixture | White and blue\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "White and blue", "file": "iso-32-oxygen-nitrous-oxide-mixture.md", "gas": "Oxygen/Nitrous Oxide Mixture", "generated": true, "harvested": "2026-08-05", "id": "iso-32-oxygen-nitrous-oxide-mixture", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White | Nitrous Oxide | Blue | Medical Air | Black and white shoulder | Carbon Dioxide | Grey | Helium | Brown | Oxygen/Helium Mixture | White and brown | Oxygen/Nitrous Oxide Mixture | White and blue", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Oxygen/Nitrous Oxide Mixture \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen\n\n**Standard:** ISO 32\n\n**Body color:** White\n\n> Gas | Cylinder Body Colour (ISO 32) | Oxygen | White\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "White", "file": "iso-32-oxygen.md", "gas": "Oxygen", "generated": true, "harvested": "2026-08-05", "id": "iso-32-oxygen", "source_quote": "Gas | Cylinder Body Colour (ISO 32) | Oxygen | White", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "ISO 32", "title": "Oxygen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen\n\n**Standard:** Thailand\n\n**Body color:** emerald green\n\n> Thailand, for example, uses emerald green for oxygen cylinders\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "emerald green", "file": "thailand-oxygen.md", "gas": "Oxygen", "generated": true, "harvested": "2026-08-05", "id": "thailand-oxygen", "source_quote": "Thailand, for example, uses emerald green for oxygen cylinders", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "Thailand", "title": "Oxygen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}
{"asset": "gas-cylinder-color-codes", "body": "**Gas:** Oxygen\n\n**Standard:** UK older convention (pre BS EN 1089-3)\n\n**Shoulder color:** white\n\n**Body color:** black\n\n> the older UK convention used black bodies with white shoulders for oxygen before shifting fully to white bodies under BS EN 1089-3\n\nSource: <https://actisshealthcare.com/medical-gas-pipeline-colour-code>\n", "body_color": "black", "file": "uk-older-convention-pre-bs-en-1089-3-oxygen.md", "gas": "Oxygen", "generated": true, "harvested": "2026-08-05", "id": "uk-older-convention-pre-bs-en-1089-3-oxygen", "shoulder_color": "white", "source_quote": "the older UK convention used black bodies with white shoulders for oxygen before shifting fully to white bodies under BS EN 1089-3", "sources": ["https://actisshealthcare.com/medical-gas-pipeline-colour-code"], "stale_after": "2028-08-04", "standard": "UK older convention (pre BS EN 1089-3)", "title": "Oxygen \u2014 Gas cylinder color codes by standard and country", "type": "jurisdictional-variation", "verified": true}