Permeation of gasoline through DI pipe gaskets in water mains

Cheng, Chu-Lin; Gaunt, James A.; Mao, Feng; Ong, Say Kee

doi:10.5942/jawwa.2012.104.0052

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Therefore, considering permeability and degradation of gasket materials is of great importance. The commonly used gasket materials in distribution and drainage systems are ethylene propylene diene monomer (EPDM), chloroprene rubber (CR; neoprene), styrene-butadiene rubber (SBR), nitrile rubber (NBR), fluoroelastomer rubber (FKM), and isoprene (IR) ( 10 ). A given type is selected depending on the contamination condition of the piping system installation site ( 10 ).…”

mentioning

confidence: 99%

“…The commonly used gasket materials in distribution and drainage systems are ethylene propylene diene monomer (EPDM), chloroprene rubber (CR; neoprene), styrene-butadiene rubber (SBR), nitrile rubber (NBR), fluoroelastomer rubber (FKM), and isoprene (IR) ( 10 ). A given type is selected depending on the contamination condition of the piping system installation site ( 10 ). SBR and CR gaskets are typically used for water distribution pipes whereas NBR and FKM gaskets are used for pipes conveying hydrocarbons and petroleum products or when hydrocarbon-resistant gaskets are required for water distribution ( 10 ).…”

mentioning

confidence: 99%

“…A given type is selected depending on the contamination condition of the piping system installation site ( 10 ). SBR and CR gaskets are typically used for water distribution pipes whereas NBR and FKM gaskets are used for pipes conveying hydrocarbons and petroleum products or when hydrocarbon-resistant gaskets are required for water distribution ( 10 ). In the present study, therefore, Polychloroprene (Neoprene-CR), Acrylonitrile (nitrile) butadiene rubber (Buna-N), and fluoroelastomer rubber (FKM—Grade A Viton TM ) are chosen to assess their degradation in the presence of contaminants.…”

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confidence: 99%

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Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions

Hosseini

Alhomair

Faeli

et al. 2020

Transportation Research Record: Journal of the Transportation R

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In this paper, a tensile strength degradation model is developed for polyvinyl chloride (PVC) pipe and three rubber gasket materials commonly used in stormwater drains and wet utilities; the degradation model considers exposure to a single contaminant at its saturation level. The contaminant considered included benzene and tetrachloroethylene (PCE) because of their prevalence. The materials considered are unplasticized Polyvinyl chloride (u-PVC) utilized as the pipe material, and three types of rubber gaskets: Polychloroprene (Neoprene-CR), Acrylonitrile (nitrile) butadiene rubber (Buna-N), and fluoroelastomer rubber (FKM—Grade A VitonTM). First, the degradation rates of these materials are experimentally quantified using accelerated testing; then using the experimental results and Williams–Landel–Ferry (WLF) method a degradation model is developed. Finally, a simplified method is introduced to relate the tensile strength degradation of PVC to the penetration rate of the contaminants.

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Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions

Hosseini

Alhomair

Faeli

et al. 2020

Transportation Research Record: Journal of the Transportation R

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Plastic water supply connectors: Leaching, hydrocarbon contamination, and decontamination

Isaacson,

Le,

Verma

et al. 2024

AWWA Water Science

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Disasters can prompt hydrocarbon contaminants to reach building water systems, and ultimately customer fixtures. Here, seven water supply connectors (e.g., ice‐maker lines, faucet connectors, washing machine hoses) were exposed to contaminated water, and were subsequently decontaminated by water flushing. After a 24 h contamination period, water samples were collected after three consecutive 72 h exposure periods. Samples were characterized for volatile organic compound, semi‐volatile organic compound, and total organic carbon concentrations. New, uncontaminated, PVC tubing leached phenol at concentrations that exceeded the health advisory. All materials sorbed more than 90% of hydrocarbon contaminants during the initial exposure period. All materials then released the contaminants into the water during decontamination, at times above health‐based limits. The majority of sorbed mass remained in the plastics at the end of the decontamination effort, indicating the products posed continued leaching risks. Public health guidance considerations and research needs were identified.

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Predicting the Partitioning of Organic Compounds through Polymer Materials: Quantum Mechanical Applications

2018

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Permeation of gasoline through DI pipe gaskets in water mains

Abstract: Push-on joint 1: 7.5-60 cm (3-24 in.)Push-on joint 2: 75-120 cm (30-48 in.) Push-on joint 3: 75-120 cm (30-48 in.)Cheng et al | http://dx.

Cited by 5 publications

References 14 publications

Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions

Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions

Plastic water supply connectors: Leaching, hydrocarbon contamination, and decontamination

Predicting the Partitioning of Organic Compounds through Polymer Materials: Quantum Mechanical Applications

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