The outer shell is the exterior layer. It offers the _______ and ______ protection.
The moisture barrier is the ______ layer, its principle purpose is to prevent passage of _______ into clothing interior.
The thermal barrier is the _______ layer, this is the primary layer for _______ _______.
innermost, thermal insulation
The thermal barrier uses lightweight, ___-______ materials to trap air. It must maintain its "____" or "fluffiness" to retain its insulative qualities.
Upper back is referred to the _______
Pant and jacket cuffs are also called _______
outer shells are 5-60% _______. They weigh to 6 to 7.5 ounces/sq yard. They are offered in twill, _____-weave, or _______.
What material is more flexible but less durable than duck weave.
Outer shells are are composed of ________ (NOMEX), PBI, and ________
The first moisture barriers were flame-resistant coated with _____. They had a high ____ to ____ ratio.
Weight to Bulk
Alternative moisture barriers were developed based on ______ ______ technology to promote ______.
Teflon (goretex or crosstech), flame-retardent polyurethanes (porelle), and polyester (sympatex) are all base forms of _____ products.
Substrate choices for film products in moisture barriers are ______, and _______ (offered in Europe).
Moisture barriers are intended to be a relatively lightweight layer in the composite with fabric weights ranging from ___ to ____ grams/sq meter.
3.5 to 5
Lining systems or thermal barriers typically were made of multiple layers of fabric to provide bulk and air layers. modern thermal barriers use ________ batting materials that entrap air for more effective insulation.
Betting materials include fibers based on _____, ______, Kermel, Basofil, or other flame-resistant materials.
Alternative thermal barriers use multiple layers (2 or 3) of a nonwoven fabric, such as ______ ___.
Manufacturers have been investigating new material technologies such as ________ materials. These fabrics contain polymers that have increased heat storage capacity. This equals lower ____ and ____.
weight and bulk
Helmets were historically made of ______
The four helmet concerns are:
Security (how well it stays on the firefighter's head)
Key components of helmets:
Other than leather, firefighter helmets are made of lighterweight materials such as _______ and high performace composites reinforced with ______.
Firefighter helmets are required to use ____ covers.
Hoods are typically made of ______ material
Per NFPA 1971, protective hoods have _____ insulation requirement that garments.
Protective hoods are heavy, single-ply or double-ply materials using Nomex, PBI, P84, Basofil, Kevlar, and __ Rayon Fibers
Hoods are typically a _________ fit. Some hoods quickly lose their ______ due to use from _______.