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Significance and Use
5.1 This test method evaluates the ability of the construction and configuration of protective clothing or protective ensembles to resist liquid penetration. In most cases, the conditions used in this test method will not represent actual end-use conditions.
5.2 The one-hour duration of the test is not intended to simulate user exposure to splashes of liquid chemical but rather to provide sufficient time for enough liquid to penetrate to make visual detection easier.
5.3 A nontoxic, non-foaming surfactant is added to water for this test method to simulate liquids of lower surface tensions. Liquids of specific interest can be simulated by treating water to achieve an equivalent surface tension.
5.4 For protective clothing with water-repellent surfaces, the lower surface tension liquid will aid in the evaluation of the construction and configuration of the garment because it is not repelled but wets the protective clothing. This is especially useful for reusable garments whose water-repellent surface interferes with the evaluation of their construction and configuration when new, but is diminished after wearing and washing.
5.6 This test method can be used by both manufacturers and end users to assess liquid penetration resistance. Manufacturers can use this test method to evaluate quality of construction and effectiveness of clothing and ensemble configurations.
5.7 The clothing or ensemble shall be sized to fit the mannequin. It is important that the clothing fit the mannequin well since detection of liquid penetration requires as much contact as possible between the clothing or ensemble and the inner liquid-absorptive garment.
5.8 Results on a mismatched size of clothing or ensemble shall not be used to generalize about a particular construction or configuration. Mannequin fit potentially affects liquid penetration resistance determinations.
5.10 In some cases protective clothing or protective ensembles that show no liquid penetration during this test method will still fail to protect wearers against specific chemicals due to the material degradation, penetration, or permeation or the toxicity associated with the vapor of liquid chemicals.
5.11 In some cases protective clothing or protective ensembles that show no liquid penetration during this test method will still fail to protect wearers in specific circumstances as, for example, deluge or immersion.
1.2 This test method measures the liquid penetration resistance of the construction and configuration of the overall protective clothing or protective ensemble, but especially of seams, closures, and interfaces with other components such as gloves, boots, hoods, and respiratory protective equipment. It is intended that this test method be used to assess the liquid penetration resistance of protective clothing and protective ensembles as received from the manufacturer and worn in accordance with their instructions.
1.4 The integrity of vapor protective ensembles is measured by its ability to maintain positive internal pressure with Test Method F1052.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D751 Test Methods for Coated Fabrics
D2582 Test Method for Puncture-Propagation Tear Resistance of Plastic Film and Thin Sheeting
D4157 Test Method for Abrasion Resistance of Textile Fabrics (Oscillatory Cylinder Method)
F392 Test Method for Flex Durability of Flexible Barrier Materials
F739 Test Method for Permeation of Liquids and Gases through Protective Clothing Materials under Conditions of Continuous Contact
F903 Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Liquids
F1052 Test Method for Pressure Testing Vapor Protective Suits
F1358 Test Method for Effects of Flame Impingement on Materials Used in Protective Clothing Not Designated Primarily for Flame Resistance
F1383 Test Method for Permeation of Liquids and Gases through Protective Clothing Materials under Conditions of Intermittent Contact
F1407 Test Method for Resistance of Chemical Protective Clothing Materials to Liquid Permeation--Permeation Cup Method
ICS Number Code 13.340.10 (Protective clothing)
UNSPSC Code 53100000(Clothing); 21101801(Sprayers)