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Industrial insulation data — source points and computed tables

Audit 114 named-product conductivity rows with source and test geometry, then use 80 computed heat-loss tables for DN25-DN300. Published and formula-derived source rows stay visibly separate from generic calculator curves.

Open conductivity library · version 2026-08-29.5

114 conductivity rows you can audit, filter and reuse

14 named products, with value basis, test method, specimen geometry and a direct source on every row. Published table points and values calculated from a declared manufacturer formula are labelled separately; neither is the generic calculator curve.

Chart of traceable conductivity rows for 14 named industrial insulation products
Source browser

Find the exact product row

114 of 114 rows
ProductGeometrySource table temperatureλ W/m·KBasisMethod and source
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section50 °C
Mean temperature
0.040Published tableEN ISO 8497
Primary document ↗
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section100 °C
Mean temperature
0.046Published tableEN ISO 8497
Primary document ↗
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section150 °C
Mean temperature
0.054Published tableEN ISO 8497
Primary document ↗
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section200 °C
Mean temperature
0.064Published tableEN ISO 8497
Primary document ↗
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section250 °C
Mean temperature
0.077Published tableEN ISO 8497
Primary document ↗
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section300 °C
Mean temperature
0.092Published tableEN ISO 8497
Primary document ↗
ProRox PS 960 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section350 °C
Mean temperature
0.112Published tableEN ISO 8497
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat50 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.041Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat100 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.046Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat150 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.053Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat200 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.061Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat250 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.071Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat300 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.083Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat350 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.096Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat400 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.111Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat500 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.146Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat600 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.186Published tableEN 12667
Primary document ↗
ProRox WM 960 ES
ROCKWOOL Technical Insulation
Wired mat660 °C
Manufacturer table label T (C); document does not explicitly say mean temperature
0.213Published tableEN 12667
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section50 °C
Mean temperature
0.040Published tableEN ISO 8497
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section100 °C
Mean temperature
0.046Published tableEN ISO 8497
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section150 °C
Mean temperature
0.053Published tableEN ISO 8497
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section200 °C
Mean temperature
0.062Published tableEN ISO 8497
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section250 °C
Mean temperature
0.073Published tableEN ISO 8497
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section300 °C
Mean temperature
0.085Published tableEN ISO 8497
Primary document ↗
ProRox PS 970 with WR-Tech
ROCKWOOL Technical Insulation
Pipe section350 °C
Mean temperature
0.099Published tableEN ISO 8497
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat50 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.044Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat100 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.054Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat150 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.067Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat200 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.083Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat250 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.104Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat300 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.130Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat400 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.202Published tableEN 12667
Primary document ↗
Power-teK LM 450 ALU
Knauf Insulation
Lamella mat450 °C
Temperature-dependent manufacturer table labelled theta (C); document does not explicitly say mean temperature
0.250Published tableEN 12667
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat10 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.033Published tableEN 12667 / EN ISO 13787
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat50 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.037Published tableEN 12667 / EN ISO 13787
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat100 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.045Published tableEN 12667 / EN ISO 13787
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat200 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.063Published tableEN 12667 / EN ISO 13787
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat300 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.088Published tableEN 12667 / EN ISO 13787
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat400 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.122Published tableEN 12667 / EN ISO 13787
Primary document ↗
U TECH Wired Mat MT 4.0 Alu1/V1/X
Saint-Gobain ISOVER
Wired mat500 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.163Published tableEN 12667 / EN ISO 13787
Primary document ↗
TECH Pipe Section MT 4.2
Saint-Gobain ISOVER
Pipe section10 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.033Published tableISO 8497 / EN ISO 13787
Primary document ↗
TECH Pipe Section MT 4.2
Saint-Gobain ISOVER
Pipe section50 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.036Published tableISO 8497 / EN ISO 13787
Primary document ↗
TECH Pipe Section MT 4.2
Saint-Gobain ISOVER
Pipe section100 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.043Published tableISO 8497 / EN ISO 13787
Primary document ↗
TECH Pipe Section MT 4.2
Saint-Gobain ISOVER
Pipe section200 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.062Published tableISO 8497 / EN ISO 13787
Primary document ↗
TECH Pipe Section MT 4.2
Saint-Gobain ISOVER
Pipe section300 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.092Published tableISO 8497 / EN ISO 13787
Primary document ↗
TECH Pipe Section MT 4.2
Saint-Gobain ISOVER
Pipe section400 °C
Manufacturer table label T (C); EN ISO 13787 declared-value treatment
0.130Published tableISO 8497 / EN ISO 13787
Primary document ↗
CLIMPIPE Section Alu2
Saint-Gobain ISOVER
Pipe section10 °C
Mean temperature
0.033Published tableEN 14303 declaration
Primary document ↗
CLIMPIPE Section Alu2
Saint-Gobain ISOVER
Pipe section50 °C
Mean temperature
0.036Published tableEN 14303 declaration
Primary document ↗
CLIMPIPE Section Alu2
Saint-Gobain ISOVER
Pipe section100 °C
Mean temperature
0.043Published tableEN 14303 declaration
Primary document ↗
CLIMPIPE Section Alu2
Saint-Gobain ISOVER
Pipe section200 °C
Mean temperature
0.062Published tableEN 14303 declaration
Primary document ↗
CLIMPIPE Section Alu2
Saint-Gobain ISOVER
Pipe section300 °C
Mean temperature
0.092Published tableEN 14303 declaration
Primary document ↗
CLIMPIPE Section Alu2
Saint-Gobain ISOVER
Pipe section400 °C
Mean temperature
0.130Published tableEN 14303 declaration
Primary document ↗
Superwool Plus Blanket, 128 kg/m3
Morgan Thermal Ceramics
Blanket200 °C
Mean temperature
0.050Published tableASTM C201
Primary document ↗
Superwool Plus Blanket, 128 kg/m3
Morgan Thermal Ceramics
Blanket400 °C
Mean temperature
0.080Published tableASTM C201
Primary document ↗
Superwool Plus Blanket, 128 kg/m3
Morgan Thermal Ceramics
Blanket600 °C
Mean temperature
0.120Published tableASTM C201
Primary document ↗
Superwool Plus Blanket, 128 kg/m3
Morgan Thermal Ceramics
Blanket800 °C
Mean temperature
0.180Published tableASTM C201
Primary document ↗
Superwool Plus Blanket, 128 kg/m3
Morgan Thermal Ceramics
Blanket1000 °C
Mean temperature
0.250Published tableASTM C201
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket0 °C
Mean temperature
0.020Published tableASTM C177 at 2 psi
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket100 °C
Mean temperature
0.023Published tableASTM C177 at 2 psi
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket200 °C
Mean temperature
0.028Published tableASTM C177 at 2 psi
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket300 °C
Mean temperature
0.035Published tableASTM C177 at 2 psi
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket400 °C
Mean temperature
0.046Published tableASTM C177 at 2 psi
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket500 °C
Mean temperature
0.064Published tableASTM C177 at 2 psi
Primary document ↗
Pyrogel XTE
Aspen Aerogels
Flexible blanket600 °C
Mean temperature
0.089Published tableASTM C177 at 2 psi
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section38 °C
Mean temperature
0.050Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section93 °C
Mean temperature
0.056Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section149 °C
Mean temperature
0.063Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section204 °C
Mean temperature
0.070Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section260 °C
Mean temperature
0.078Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section316 °C
Mean temperature
0.085Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Pipe section371 °C
Mean temperature
0.093Published tableASTM C335
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen38 °C
Mean temperature
0.051Published tableASTM C518
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen93 °C
Mean temperature
0.054Published tableASTM C518
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen149 °C
Mean temperature
0.057Published tableASTM C518
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen204 °C
Mean temperature
0.062Published tableASTM C518
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen260 °C
Mean temperature
0.067Published tableASTM C518
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen316 °C
Mean temperature
0.073Published tableASTM C518
Primary document ↗
Thermo-12 Gold
Johns Manville
Flat specimen371 °C
Mean temperature
0.081Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section38 °C
Mean temperature
0.059Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section93 °C
Mean temperature
0.069Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section149 °C
Mean temperature
0.079Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section204 °C
Mean temperature
0.088Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section260 °C
Mean temperature
0.097Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section316 °C
Mean temperature
0.105Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Pipe section371 °C
Mean temperature
0.113Published tableASTM C335
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen38 °C
Mean temperature
0.063Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen93 °C
Mean temperature
0.069Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen149 °C
Mean temperature
0.074Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen204 °C
Mean temperature
0.080Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen260 °C
Mean temperature
0.087Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen316 °C
Mean temperature
0.093Published tableASTM C518
Primary document ↗
Sproule WR-1200
Johns Manville
Flat specimen371 °C
Mean temperature
0.100Published tableASTM C518
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block-180 °C
Mean temperature
0.020Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block-150 °C
Mean temperature
0.022Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block-120 °C
Mean temperature
0.025Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block-80 °C
Mean temperature
0.029Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block-40 °C
Mean temperature
0.034Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block0 °C
Mean temperature
0.040Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block40 °C
Mean temperature
0.046Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block80 °C
Mean temperature
0.054Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block120 °C
Mean temperature
0.061Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block180 °C
Mean temperature
0.075Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block240 °C
Mean temperature
0.090Published tableEN ISO 13787
Primary document ↗
FOAMGLAS ONE
Owens Corning
Block300 °C
Mean temperature
0.107Published tableEN ISO 13787
Primary document ↗
PROMALIGHT 1000R
Promat
Board200 °C
Mean temperature
0.022Published tableISO 8302 / ASTM C177
Primary document ↗
PROMALIGHT 1000R
Promat
Board400 °C
Mean temperature
0.024Published tableISO 8302 / ASTM C177
Primary document ↗
PROMALIGHT 1000R
Promat
Board600 °C
Mean temperature
0.029Published tableISO 8302 / ASTM C177
Primary document ↗
PROMALIGHT 1000R
Promat
Board800 °C
Mean temperature
0.034Published tableISO 8302 / ASTM C177
Primary document ↗
HT/ArmaFlex tubes
Armacell
Closed-cell EPDM elastomeric tube-50 °C
Mean temperature
0.03579Declared formula
lambda=[36.92+0.125*T+0.0008*(T-30)^2]/1000
EN ISO 13787 / EN 12667 / EN ISO 8497
Primary document ↗
HT/ArmaFlex tubes
Armacell
Closed-cell EPDM elastomeric tube0 °C
Mean temperature
0.03764Declared formula
lambda=[36.92+0.125*T+0.0008*(T-30)^2]/1000
EN ISO 13787 / EN 12667 / EN ISO 8497
Primary document ↗
HT/ArmaFlex tubes
Armacell
Closed-cell EPDM elastomeric tube40 °C
Mean temperature
0.042Declared formula
lambda=[36.92+0.125*T+0.0008*(T-30)^2]/1000
EN ISO 13787 / EN 12667 / EN ISO 8497
Primary document ↗
HT/ArmaFlex tubes
Armacell
Closed-cell EPDM elastomeric tube50 °C
Mean temperature
0.04349Declared formula
lambda=[36.92+0.125*T+0.0008*(T-30)^2]/1000
EN ISO 13787 / EN 12667 / EN ISO 8497
Primary document ↗
HT/ArmaFlex tubes
Armacell
Closed-cell EPDM elastomeric tube100 °C
Mean temperature
0.05334Declared formula
lambda=[36.92+0.125*T+0.0008*(T-30)^2]/1000
EN ISO 13787 / EN 12667 / EN ISO 8497
Primary document ↗
HT/ArmaFlex tubes
Armacell
Closed-cell EPDM elastomeric tube150 °C
Mean temperature
0.06719Declared formula
lambda=[36.92+0.125*T+0.0008*(T-30)^2]/1000
EN ISO 13787 / EN 12667 / EN ISO 8497
Primary document ↗

Coverage boundary: The temperature-basis wording printed by each source is retained; a generic T or theta label is not silently upgraded to mean temperature. RCF is intentionally not represented in the named-product Dataset. HT/ArmaFlex rows are calculated only from the displayed declared tube formula; they are not measured table points. Manufacturer documents remain their owners' copyright.

Inzonex engineering learning resourceOpen engineering resource
Learning outcomes

Read a λ(T) table without fooling yourself

01

Separate source from model

Identify a manufacturer-tabulated row, declared value, formula-derived value, interpolation and generic class estimate.

02

Match the comparison

Compare only where the temperature basis, product grade and test geometry are compatible.

03

Use the value responsibly

Carry the source, assumptions and limits into an R-value or heat-loss calculation.

Worked example

75 mm at a solved 120 °C mean temperature

If the heat-loss solver gives a 40 °C outer insulation surface for a 200 °C process surface, the effective insulation mean is (200 + 40) / 2 = 120 °C. Ambient temperature is an input to the outer-surface calculation; it is not substituted directly into the insulation mean. The example below uses only rows whose sources explicitly define the coordinate as mean temperature.

  1. ProRox PS 960: interpolate 0.046 at 100 °C and 0.054 at 150 °C → 0.0492 W/m·K.
  2. Pyrogel XTE: interpolate 0.023 at 100 °C and 0.028 at 200 °C → 0.0240 W/m·K.
  3. Flat-equivalent R = thickness / λ: 1.52 versus 3.13 m²K/W.

The 40 °C outer surface is an explicit teaching assumption. A real pipe calculation must solve it iteratively from cylindrical geometry, insulation thickness and the outer surface coefficient. This is not a product ranking: pipe and flat test methods differ.

Exercise 1 · source point vs calculator curve

Filter stone wool at 300 °C. The ProRox source is 0.092 W/m·K; the generic reference curve uses 0.089. Which one may be cited as the named product value? The source row.

Exercise 2 · pipe vs flat geometry

Filter Thermo-12 Gold. ASTM C335 and C518 differ at the same temperatures, so the curves remain separate. For pipe work, prefer pipe-test evidence where product and installation match.

Computed reference tables

Pick a material and duty temperature

Stone wool (mineral wool)
Glass wool
Ceramic fibre (RCF / AES blanket)
Aerogel blanket
Calcium silicate
Expanded perlite
Cellular glass
Microporous (fumed-silica) panels
Elastomeric foam (FEF)
PIR / PUR rigid foam
E-glass needle mat
Silica needle mat / fabric
FAQ

Questions on source data

What is the difference between a source point and a model curve?
A published source point is a value printed for a named product and stated mean temperature. A formula-derived row is calculated from a manufacturer's declared equation and is labelled separately. Both remain separate from the generic calculator model.
Why can the same material have different conductivity values?
Product density, grade, mean temperature, applied pressure and test geometry all matter. Thermo-12 Gold and Sproule WR-1200 therefore retain separate ASTM C335 pipe and ASTM C518 flat-specimen rows instead of averaging them.
Can I use these values for an insulation specification?
Use them to compare and reproduce calculations, then confirm the current datasheet for the exact product grade, geometry, service conditions and governing project standard. This compilation is not a product approval or installation specification.
Inzonex: Some materials in this database are rated to 1000 °C or above. Standard Inzonex projects usually address duties up to +600 °C; the allowable temperature of the complete engineered assembly must be confirmed for the specific application.