TPP / THL / CCHR / STE

TPP (Thermal Protective Performance)


The TPP test measures the elapsed time for heat emitted from a radiant and convective heat source to go through all layers of a composite system (Outer shell – Moisture barrier – Thermal barrier) and resulting in a second-degree burn, as it may occur in a flash over situation. The higher the TPP value, the better the thermal protection. The TPP value has an inverse effect on the THL value. A higher TPP value is generally obtained with a thicker thermal barrier. A difference in TPP value between two different composite of less than 2 is not generally considered to be physically perceivable by a firefighter.

THL (Total Heat Loss)


This test measures the ability of a composite system (Outer shell – Moisture barrier – Thermal barrier) in evacuating moisture and heat from the inside layer to the outside layer. A higher THL value indicates a composite that has a higher capability to evacuate moisture vapor. This helps the body to dissipate heat more efficiently and reduces the possibility of heat stress caused by the elevation of the body core temperature. In general, a higher THL value will have an inverse effect on the TPP value. A difference in THL value of less than 50 W/m2 between two composites is not generally considered to be physically perceivable by a firefighter.

CCHR (Conductive and compressive Heat Resistance)


This test measures the level of thermal protection in the shoulder and knee areas. The test result represents the time in seconds, for a second degree burn to occur when the composite (Outer Shell – Moisture barrier – Thermal barrier – and any additional reinforcement) is compressed on a heated plate set to 532°F (280°C), with a pressure of 2psi (shoulders) or 8psi (knees). All INNOTEX® garments are manufactured with two extra layers of thermal barrier in the shoulder and knee areas to offer increased protection, above the NFPA 1971 standard against compression burns.

STE (Transmitted and Stored Thermal Energy)


This test measures the level of thermal protection in the sleeve area of the coat. The test result represents the time in seconds, for a second degree burn to occur when the composite (Outer Shell – Moisture barrier – Thermal barrier – and any additional enhancement exterior to the outer shell (trim, reinforcements, emblems, …)) is exposed to a low level radiant heat source for 120 seconds and then compressed for 60 seconds. If no burn injury occurs, the time to second degree burn shall be reported as “no burn.” All INNOTEX® garments are manufactured with a layer of nonporous material between the moisture and thermal barriers to counter act any negative effects the enhancements exterior to the outer shell may have. All INNOTEX® garments offer increased protection above the NFPA 1971 standard against Transmitted and Stored Thermal Energy.

HOW TO MEASURE


fitting_body fitting_body

Take the measure loosely over clothing. Write down the exact measure taken for each of the following.

A Chest - Measure around the fullest part of the chest.

B Torso - Measure over the arms at the fullest part of the chest. (Chest or biceps)

C Waist - Measure around the top of the hipbones (where the upper body folds). The waist line is usually aligned with the navel.

D Hips - Measure at the largest part of the hips or buttocks (whichever is the largest).

E Sleeves - Measure the arm starting from the center base of the neck (back), over the shoulder, to the outer point of the elbow, to the top knuckle bone of the little finger. Please make sure you take the measurement with the arm bent at a 90 degree angle. The hand should normally be over the navel

F Height - Measure from the top of the head down to the floor (do not wear shoes).

G Outseam - Measure from the waist down to the floor (do not wear shoes).

H Inseam - Measure from high in the crotch to the bottom of the ankle bone.

PLEASE NOTE

A proper fit is one of the key elements that helps reduce the risk of injuries.

Please help us to improve firefighters’ safety by following the instructions carefully and diligently.