Mecadi
ASTM D4279-95(2009)
Title: Standard Test Methods for Water Vapor Transmission of Shipping Containers-Constant and Cycle Methods Category: Water Vapor Permeability Please note: Complete standard sheets are made
Low Density Polyethylene (LDPE)
Description: The LDPE polymer is largely branched, which forces the molecules to be packed rather loosely. The result is a plastic material with a low
Polyether-Block-Amide (PEBA)
Description: PEBA owns rubber-like properties but can be processed just like common thermoplastics. Usages: Being both an elastomer and a thermoplastic, PEBA onwns rubber-like properties
DIN 53536:1992-10
Title: Testing of rubber; determination of gas permeability Category: Elastomer Please note: Complete standard sheets are made available by Beuth Verlag.
Biotechnology
Descpription: Biotechnology is a engineering application of Biology and Biochemistry, including e.g. the process of cloning and the use of genetic engineering in order to
Non-liability agreement
Non-liability for information The contents of the Mecadi sites provide solely the acquisition of general information. Even though all the particulars and all the inforamtion
Fluoro-Silicone-Rubbers (MFQ or FVMQ)
Description: Nomenclature: MFQ according to ISO 1629 (“Rubber and latices – Nomenclature”) or FVMQ according to ASTM 1418 (“Practice for Rubber and Rubber Latices —
DIN 10967 Beiblatt 1:2000-07
Title: Sensory analysis – Investigation of profiles – Examples for the statistical evaluation Category: Sensory Analysis Please note: Complete standard sheets are made available by
Permeat
Descpription: The stream of particles migrating through a material during the permeation process is called permeat. Category:Definition
Acrylic-Butadiene-Styrene-copolymers (ABS)
Descpription: ABS consist of a framing phase of Styrene-Acrylnitrile-Copolymer (SAN) in which an elastic Phase of butadiene-homo- or copolymers is dispersed. The coherent SAN-Matrix provides
ASTM F1296-08
Title: Standard Guide for Evaluating Chemical Protective Clothing Category: Protective Clothing Please note: Complete standard sheets are made available by Beuth Verlag.
DIN EN 368:1993-01
Title: Protective Clothing; Protection against liquid chemicals; Determination of resistance of materials to penetration by liquids; German Norm EN 368:1992) Please note: Withdrawn standard Category:
ISO 4022:1987-10
Title: Permeable sintered metal materials — Determination of fluid permeability Category: Sintered Metals Please note: Complete standard sheets are made available by Beuth Verlag.
DIN EN ISO 17699:2008-04
Title:Footwear – Test methods for uppers and lining – Water vapour permeability and absorption (ISO/DIS 17699:2008); German version prEN ISO 17699:2008 Please note: Draft Standard
Poly-Vinylalcohol (PVA)
Description: PVA is synthesised either by polymerisation-analogue reactions or on a large scale by transesterification and hydrolysis of vinylacetates in alkaline media (preferred solvent: methanol).
ASTM D4491-99a(2004)e1
Title:Standard Test Methods for Water Permeability of Geotextiles by Permittivity Category:Geomembranes and Geotextiles Please note: Complete standard sheets are made available by Beuth Verlag.
TAPPI T523
Title: Dynamic Measurement of Water Vapor Transfer Through Sheet Materials Category: Plastic Film and Packaging Please note: Complete standard sheets are made available by Beuth
Water vapor permeability WVTR according to in-house method
Please contact us for further information.
Methane permeability (plastic films manometric) according to DIN 53380-2 / DIN 53380-M
Description: Testing method for the determination of methane transmission rate through plastic films or other materials. Result Unit: Gas permeability in cm3/(m2*d*bar); based on the
DIN EN 772-15
Title: Methods of test for masonry units – Part 15: Determination of water vapour permeability of autoclaved aerated concrete masonry units Category: Building Materials and
Polyvinylidenefluoride (PVDF)
Description: PVDF is a semi-crystalline fluoroplastic and belongs the thermoplastic materials. (PVDF is not injection-mouldable). It is characterised by a outstanding durability in a chemical
Poly-Vinylchloride (PVC)
Description: Available as hard or soft modification, this polymer features a good resistance to oils (except essential oils) and mostly very low permeability rates for
Resin
Description: According to DIN 55958, resins are fluid to solid organic compounds with a typical allocation of molar masses. A distinction is drawn between natural
Granule
Description: A solid substance with such a granularity allowing to easily drain the material and causing the grains to hardly be stuck together is called
Permeation cell
Description: In a permeation cell the process of permeation takes place under precisely defined conditions. (Cf. permeation measurement cell) Category:Definition
ISO 10776
Title: Geotextiles and geotextile-related products – Determination of water permeability characteristics normal to the plane, under load Category: Textiles Please note: Complete standard sheets are
Fuel Tank Technology
Description: Technology concerned with optimising and developing fuel tanks. The main focus of interest here lies on properties such as density, mobility, (heat and air)
Ammonia permeability according to ISO 6529
Description: Determining resistance of protective clothings to permeation of ammonia with continuous or discontinuous contact and for determining the time lag. Result Unit: Permeation rate
Styrene-Acrylic-Nitrile-Copolymer (SAN)
Description: Copolymer composed of aprox. 70% styrene and 30% acrylic nitrile. Usage: housewares medical parts electronic parts Formulas: Category:Thermoplastic
Polyethylenenaphthalate (PEN)
Description: Polyester which is very similar to PET but more temperature-resistant. PEN is a semi-crystalline and transparent plastic with an either crystal-clear or sometimes slightly
ISO 2782-1
Title: Rubber, vulcanized or thermoplastic – Determination of permeability to gases – Part 1: Differential-pressure methods Category: Elastomer Related standards: ISO 15105-1, GB/T 1038-2000 Please
Hydrogenated Polyacrylic-Nitrile Butadiene (HNBR)- EPM (copolymer); EPDM (terpolymer)
Description: Swelling in oil an benzine comparable to the one of NBR. operational temperatures up to +150°C, high tensile strengh, resistant to weather. Usage: tubes
Measurement Unit Permeation (Fluoropolymer) Mecadi
Characteristics: Available ISO conform or according customer specification. For liquids or gases. Connectors, test area, sealing and mounting parts selectable. Perfluorinated elastomersealings on request. Optional:
RFID
Description: Radio Frequency Identification (RFID) is a method for contactless reading and saving data. This system was originally developed in order to substitute the identification
Barrier
Description: Layer of material, e.g. a polymer or a film, carrying very low permeability for gases, vapors and fluids. Depending on permeation properties, different materials
Membrane
Descpription: A membrane is a thin, skin-like seperating layer. In chemistry one uses membranes for separating two environments (in contrast to swinging membranes used in
Permeability
Descpription: The specific permeability of a material determines the migration rate of another substance through the pores and gaps of the material. The rate depends
DIN EN 12086
Title: Thermal insulating products for building applications – Determination of water vapour transmission properties; German version EN 12086:1997/p> Category: Thermal Insulating Products Related standards: DIN
Nitrogen permeability according to in-house method
Please contact us for further information.
Ethylene-Acrylic-Acid-copolymer (EAA)
Descpription: Polymer of exceptional adhesion and sealing, uncommon toughness and flexibility. Easy processing possible. Category:Copolymer Formula:
Polyamide (PA)
Description: PAs are a group of semi-cyrstalline engineering thermoplastics which are quite similar to each other. They are produced by polimersing linear structured aliphatic or,
NF S74-506; NF EN ISO 6530:2005-11-01
Title: Protective clothing – Protection against liquid chemicals – Determination of resistance of materials to penetration by liquids. Category: Protective Clothing Please note: Complete standard
ISO 8469:2006-07
Title: Small craft – Non-fire-resistant fuel hoses Category: Hoses Please note: Complete standard sheets are made available by Beuth Verlag.
DIN 53380-5
Title: Testing of plastics – Determination of gas transmission rate – Part 5: Optical method for plastic films and plastic moulded parts Category: Plastics Please
ASTM F2298-03(2009)e1
Title:Standard Test Methods for Water Vapor Diffusion Resistance and Air Flow Resistance of Clothing Materials Using the Dynamic Moisture Permeation Cell Category: Clothes Please note:
ISO 5496:2006-08
Title: Sensory analysis – Methodology – Initiation and training of assessors in the detection and recognition of odours Category: Sensory Analysis Please note: Complete standard
ASTM D1434-82(2009)e1
Title: Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting Category: Plastic Film and Packaging Please note: Complete standard sheets are
Polyethyleneglycol
Description: These plastics are produced by cationic or anionic polymersation of ethyleneoxide. Depending on their molecular weight, they are obtained in form of either colourless,
DIN EN ISO 7231
Title: Polymeric materials, cellular flexible – Method of assessment of air flow value at constant pressure-drop (ISO 7231:1984); German version EN ISO 7231:1997 Please note:
DIN 4815-3:1985-07
Title: Flexible tubes for LPG; flexible tubes for filling and emptying of transportation vehicles Category: Hoses Please note: Complete standard sheets are made available by
Transmission oil permeability according to in-house method
Please contact us for further information.
GB/T 1038-2000
Title: Plastic Film and sheeting – Determination of gas transmission – Differential-pressure method Category: Plastic Film and Packaging Related standards: ISO 15105-1, ISO 2782-1 Please
DIN 10967-4:2002-05
Title: Sensory analysis – Investigation of profiles – Part 4: Testing plans Category: Sensory Analysis Please note: Complete standard sheets are made available by Beuth
How to find us: please navigate to “In der Kolling 9”
Some navigation systems are not able to find no. 145.
ISO 1399
Title: Rubber, vulcanized – Determination of permeability to gases – Constant volume method Category: Plastics Please note: Complete standard sheets are made available by Beuth
ASTM F1359-07
Title: Standard Test Method for Liquid Penetration Resistance of Protective Clothing or Protective Ensembles Under a Shower Spray While on a Mannequin Category: Protective Clothing
Vinylidenefluoride-Chlorotrifluoroethylene-Fluoropolymer (VDF/CTFE)
Description: VDF/CTFE is a fluorinecopolymer consisting of vinylidenenfluoride and chlorotrifluoroethylene. This special thermoplastic fluorinepolymer is characterized by an excellent flexibility, a high notches impact strength
Permeation coefficient
Description: The permeation coefficient indicates permeability of a solid for a certain substance with respect to a unified thickness. It can be computed by multiplying
Thermoplastic
Beschreibung: Thermoplastics are engineering plastics which are solid at room temperature and which can repeatedly be softened and re-hardened by increasing and decrasing temperature. Category:Definition
ASTM E1870-04
Title: Standard Test Method for Odor and Taste Transfer from Polymeric Packaging Film Category: Sensory Analysis Please note: Complete standard sheets are made available by
DIN EN 14879-2:2007-02
Title: Organic coating systems and linings for protection of industrial apparatus and plants against corrosion caused by aggressive media – Part 2: Coatings on metallic
Diffusion rate
Description: The diffusion rate measures the spreading of microscopic particles within fluids or gases through (semi-)permeable barriers. Category:Definition
ASTM F1115-95(2008)e1
Title:Standard Test Method for Determining the Carbon Dioxide Loss of Beverage Containers Category:Leak Testing Please note: Complete standard sheets are made available by Beuth Verlag.
Arrhenius equation
Description: Describes temperature dependency of (chemical) reaction speed, given the specific activation energy and the chance of a successful molecule collision. Category:Definition Formula:
Fuel C
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 50Vol.% Isooctane 50Vol.% Toluene Category: Testing Fuel
ASTM F1927-07
Title: Standard Test Method for Determination of Oxygen Gas Transmission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector
Vinylidenefluoride Hexafluorobutylene Fluorocopolymer (VDF/hexafluorobutylene)
Description: Thermoplastic fluorocopolymer consisting of vinylidenefluoride and hexafluorobutylene. This copolymer is also established as CM-X. Category:Thermoplastic
ISO 6564:1985-10
Title: Sensory analysis; Methodology; Flavour profile methods Category: Sensory Analysis Please note: Complete standard sheets are made available by Beuth Verlag.
ASTM F1769-97
Title: Standard Test Method for Measurement of Diffusivity, Solubility, and Permeability of Organic Vapor Barriers Using a Flame Ionization Detector Please note:Withdrawn standard, no replacement
Hydrogen permeability (manometric) according to ISO 15105
Description: Testing method for determining hydrogen transmission rate through flat plastic materials like films, sheetings, laminates, co-extruded or coated materials under a differential pressure. Result
Catalysis
Description: The catalysis is a chemical reaction involving the presence of a catalyst. A distinction is drawn between homogeneous and heterogeneous catalysis: Homogeneous catalysis means,
ISO 8841
Title: Dense, shaped refractory products — Determination of permeability to gases Category: Building Materials and Products Please note: Complete standard sheets are made available by
Combinatorial chemistry
Description: Combinatorial chemistry means the sysnthesis of compounds by taking into account all possible combinations of the reagents. The principle involves reactions with raw material
ISO 17699:2003-10
Title: Footwear – Test methods for uppers and lining – Water vapour permeability and absorption Please note: q. v. draft standard ISO/DIS 17699:2008-04 Category: Footwear
Synthetical Resin
Description: Synthetically manufactured, fluid or solid material with all the characteristics of resins defined in DIN 55958 (cf. resin). Synthetical resins are produced from polymerisation
TAPPI T557
Title: Water Vapor Transmission Rate Through Plastic Film and sheeting Using a Modulated Infrared Sensor Category: Plastic Film and Packaging Related standards: DIN 53380-4, ASTM
ISO 8670-3:2000-03
Title: Ostomy collection bags – Part 3: Determination of odour transmission of colostomy and ileostomy bags Category: Aroma Please note: Complete standard sheets are made
DIN EN ISO 17491-4:2008-12
Title: Protective clothing – Test methods for clothing providing protection against chemicals – Part 4: Determination of resistance to penetration by a spray of liquid
Liquid-Crystal-Polymers (LCP)
Description: In principle, LCPs are composites consisting of an organig matrix in which fibers of the same kind of polymer are implemented. They feature
Polycyclohexylenedimethylene-Ethylene-Terephthalat
Description: The most important properties of this thermoplastic gained of cyclohexylendimethylenediole, ethyleneglycole and therephthalic acid are: hardness, an enourmous impact-strength and resistance to chemical substances,
Vinylfluoride Tetrafluoroethylene Fluorocopolymer (VF/TFE)
Description: Thermoplastic fluorocopolymer consisting of vinylfluoride and tetrafluoroethylene. Formula: Category:Thermoplastic
DIN EN 13832-2:2006-11
Title: Footwear protecting against chemicals – Part 2: Requirements for footwear resistant to chemicals under laboratory conditions; German version EN 13832-2:2006 Category: Footwear Please note:
DIN EN ISO 7783-2
Title: Paints and varnishes – Coating materials and coating systems for exterior masonry and concrete – Part 2: Determination and classification of water-vapour transmission rate
ASTM F2130-09
Title: Standard Test Method for Measuring Repellency, Retention, and Penetration of Liquid Pesticide Formulation through Protective Clothing Material Category: Protective Clothing Please note: Complete standard
Poly-acrylic-acid
Description: Plastic that is produced by peroxide-catalysed polymerisation of acrylic acid in aqueous solution or by hydrolysing poly-acrylic-acid-chloride or poly-acrylic-amide. Pure poly-acrylic-acid can be obtained
Styrene-Butadiene-Rubber (SBR)
Description: SBR features poor elasticity properties. When dynamically loaded, SBR undergoes a broad inner heating. Compared to that, SBR has a clearly improved abrasion resistance
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Dr. Andreas Konrad