NSF/ANSI 14: Third Party Certification for High Density Polyethylene (HDPE) Pipe

2012 ◽  
Author(s):  
Ata Ciechanowski
Keyword(s):  
Quality Control ◽  
High Density Polyethylene ◽  
Potable Water ◽  
Reclaimed Water ◽  
Acrylonitrile Butadiene Styrene ◽  
Industrial Applications ◽  
Third Party ◽  
Plastic Materials ◽  
Hdpe Pipe ◽  
Butadiene Styrene

NSF/ANSI Standard 14 (NSF 14) was developed in 1965 to establish a standard for the testing and certification of plastic materials for both toxicological health effects as well as performance. At the time of introduction, NSF 14 covered pipe and fittings for only potable water applications and a small number of plastic materials, i.e. polyvinyl chloride (PVC), acrylonitrile-butadiene-Styrene (ABS) and polyethylene (PE). Over the 46 years since its development and introduction, NSF 14 has evolved into a plastic standard that is no longer restricted to potable water. It now covers a wide variety of applications such as DWV (drain, waste and vent), sewer, natural gas, industrial applications and reclaimed water. In addition, it covers a wide variety of materials such as polypropylene (PP), HDPE, Polyamide (PA), cross-linked polyethylene (PEX) and polysulfone (PPSU). This paper will specifically cover third party certification for HDPE pipe. It will address material, performance and quality control requirements.

Recycled Plastic Beads Sorting Machine for Polypropylene and Acrylonitrile Butadiene Styrene Type with Difference of Density

2017 ◽  
Vol 871 ◽  
pp. 230-236
Author(s):  
Ubolrat Wangrakdiskul ◽  
Pongsathorn Teammoke ◽  
Weerapat Laoharatanahirun
Keyword(s):  
Processing Time ◽  
Acrylonitrile Butadiene Styrene ◽  
Labor Cost ◽  
Payback Period ◽  
Previous Method ◽  
Fatigue Effect ◽  
Sorting Machine ◽  
Previous Cycle ◽  
Plastic Materials ◽  
Butadiene Styrene

This study aims to design and develop the recycled plastic beads sorting machine for 2 types of plastic beads, which are PP (Polypropylene) and ABS (Acrylonitrile butadiene styrene). Due to the process of preparing plastic materials for producing fan tube and base parts of electric fan, plastic beads scraps has been generated. Presently, the company has separated these scraps with manual method. The workers have stirred them with water for separating scrap types by difference of density. They have operated this process in the overtime period. In addition consuming processing time, this process makes fatigue effect in operators and also consume amount of water for each cycle of separating. Therefore, sorting machine for replacement workers has been developed. It can work for more efficiency than the previous method by reducing processing time by 41.8%. The proposed machine consists of 2 tanks for separating two types of plastic beads at capacity 50 Kg/hr. At the end of each cycle, the water consumed in the previous cycle can be reused. As this method, the proposed machine can reduce consuming water approximately 88.43%. This machine can reduce the number of operators from 2 to 1 person. Finally, payback period for recovering investment of machine comparing with saving labor cost is 1.48 months.

Experimental Analysis of Ring Stiffnesses of Pipes, Made of High Density Polyethylene, due to DIN 16961-2:2010-03 Standard

2012 ◽  
Author(s):  
I. Mehmet Palabiyik ◽  
A. Orhan Yavuz ◽  
Zafer Gemici ◽  
Isminur Gökgöz
Keyword(s):  
Quality Control ◽  
Experimental Analysis ◽  
Manufacturing Process ◽  
High Density Polyethylene ◽  
Parallel Plate ◽  
Constant Load ◽  
High Density ◽  
Load Test ◽  
Plate Load Test ◽  
Hdpe Pipe

The parallel plate load test is used to measure “pipe stiffness” for HDPE pipe. Pipe stiffness is employed as a measure of pipe resistance to bending deformation as well as a quality control index for the manufacturing process. This work presents the results of a series of parallel plate tests conducted on profiled HDPE plastic pipes to determine ring stiffness values. During the study, all pipe samples were tested according to the DIN 16961 2:2010-03 standard. The nominal inside diameters of the test pipes were selected 500 and 600mm. These pipes compressed radially a constant load during 24 hours and deflection were measured by a comparator. Then experimental ring stiffness values were calculated by using these data.

Biodegradable Polymers for the Production of Prototypes

2016 ◽  
Vol 832 ◽  
pp. 152-158
Author(s):  
Juraj Beniak ◽  
Miloš Matúš ◽  
Peter Križan
Keyword(s):  
Rapid Prototyping ◽  
Biodegradable Polymers ◽  
Fused Deposition Modeling ◽  
Acrylonitrile Butadiene Styrene ◽  
Biodegradable Materials ◽  
Fused Deposition ◽  
Plastic Materials ◽  
Wide Range ◽  
Deposition Modeling ◽  
Butadiene Styrene

Technologies dedicated to the rapid prototyping uses a wide range of materials. The mostly used plastic materials are based on polymers. It is for example an Acrylonitrile Butadiene Styrene (ABS), Nylon, Polycarbonate (PC), or composites based on different polymers. New devices designed for the production of a prototype models, based on Fused Deposition Modeling (FDM) are able to work with environmentally friendly and biodegradable materials as Polylactic acid (PLA). The aim of this paper is to show the possibility of using materials based on organic polymers whose properties are comparable to conventionally used polymers. Presented are measured and statistically evaluated data related to basic properties of PLA material.

scholarly journals Assessment of Marine Debris and Plastic Polymer Types Along the Panvel Creek, Navi Mumbai, West Coast of India

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Naik Mayur S ◽  
Supnekar Santosh P ◽  
Pawar Prabhakar R
Keyword(s):  
West Coast ◽  
High Density Polyethylene ◽  
Acrylonitrile Butadiene Styrene ◽  
Marine Debris ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Plastic Debris ◽  
Fishing Vessels ◽  
Fishing Gears ◽  
Butadiene Styrene

Marine debris was collected monthly from substations along Panvel creek from May 2020 to April 2021 and was analyzed for types of non-plastic debris and plastic debris. Plastic debris was assessed for % composition of a type of plastic, plastic polymer and further categorized according to plastic code, acronym, full name and common examples. Non-plastic debris of 8 types representing 38 items were recorded. Consumer and manufactured items like glass and plastic bottles, cans, bags, rubber, metal, fiberglass, cigarettes, fishing gears etc. were observed. 8 types of polymers representing 65 items were recorded along Panvel creek. Plastic polymers like Polyethylene terephthalate (PETE/PET), High density polyethylene (HDPE), Polyvinyl chloride (PVC), Low density polyethylene (LDPE), Polypropylene (PE), Polystyrene (PS), Polyamide/Nylon, Acrylonitrile Butadiene Styrene (ABS) and Polyurethane (PU) were recorded. 13 items belongs to Plastic code 2:HDPE, 12 to 3:PVC, 11 to 5:PP, 9 to 6:PS, 8 to 4:LDPE, 6 to 1:PETE/PET and 3 each to 7:PA and Other and 8:PU, respectively, were documented. Maximum % composition (20.00%) of HDPE, and minimum (4.61%) of PA and Other and PU, respectively was recorded. Higher content of debris recorded is attributed to the disposal of domestic wastes intentionally or unintentionally into the creek and also for disposal of scrap materials from the fishing crafts. Higher HDPE content is attributed to the wastes released from the fishing vessels and also to the domestic and municipal wastes. At present the Panvel creek is moderately polluted and 3R i.e. reduce, reuse and recycling is the current solution to the overuse of plastics.

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