Category
Insulation & Refractory
Subcategory
Hot Insulation
Applicable standards
7
Issuing bodies
4
Description
Pre-formed mineral / glass wool pipe and slab insulation for hot service (up to ~650 °C).
Applicable Standards (7)
ASTM — 4 standards
ASTM C547
Mineral Fiber Pipe Insulation
Pre-formed mineral fiber pipe insulation up to about 650 °C surface temperature.
Key requirements (6)
- Mineral fiber pipe insulation (rock wool, glass wool).
- Service temperature classes: Class 1 (≤ 230 °C), Class 2 (≤ 450 °C), Class 3 (≤ 540 °C), Class 4 (≤ 650 °C).
- Thermal conductivity: ~0.038 W/m·K at 24 °C.
- Density: 70–160 kg/m³ depending on grade.
- Combined with metallic jacketing for outdoor service.
- Not water-resistant — vapor barrier required for cold service.
ASTM C612
Mineral Fiber Block and Board Thermal Insulation
Mineral wool / rockwool block and board for vessels, ducts, equipment.
ASTM C585
Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing
Standardized pipe-insulation sizing tables.
ASTM C795
Specification for Thermal Insulation for Use in Contact with Austenitic Stainless Steel
Insulation chloride / fluoride leachable limits to prevent ESCC of stainless steel.
CINI — 1 standard
CINI Manual
Insulation for Industries (CINI Manual)
Dutch industrial insulation manual — hot, cold, cryogenic, fire-protection, personnel-protection. Widely adopted across Europe and global EPC projects.
Key requirements (6)
- Dutch / European specification for industrial insulation manual.
- Sheet 2.1.01 onward: design data for hot insulation.
- Sheet 3.1.01 onward: cold insulation including cryogenic.
- Vapor barrier integrity test methods for cold service.
- Materials: cellular glass, PIR, mineral wool, aerogel guidance.
- Joint sealing details for cold insulation continuity.
BSI — 1 standard
BS 5970
Code of practice for thermal insulation of pipework, ductwork, vessels and equipment in the temperature range −100 °C to +870 °C
Application code for hot and cold thermal insulation in industrial service.
Key requirements (6)
- Code of practice for thermal insulation of pipework, ducts, vessels.
- Covers hot insulation, cold insulation, personnel protection, frost protection.
- Thickness selection charts based on heat loss / surface temperature targets.
- Vapor barrier requirements for cold service detailed.
- Cladding / metal jacketing specifications.
- Personnel protection target: surface temperature ≤ 60 °C.
BIS — 1 standard
IS 14164
Industrial Insulation Work — Code of Practice
Indian application code for industrial insulation (hot and cold).