HABERLER

16 Kasım

ASTM D1149-2018 Standard Test Method for Rubber Breakage and Cracking in Ozone-Controlled Environments

Anlamı ve kullanımı 4.1 The significance of these test methods lies in the ability to distinguish the degree of ozone resistance under limited and specific conditions of accelerated testing. The degree of resistance is judged by the appearance and size of cracks formed on the surface of the material under test. 4.2 In use, rubber materials deteriorate when exposed to ozone. There needs to be a test method in which simple, accelerated time/exposure, comparing the ability of the material to resist [...]

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16 Kasım

ASTM D1248-2016 Standard Specification for Polyethylene Plastic Extruded Materials for Wire and Cable

The code specifies the identification of polyethylene plastic extrusion materials for wire and cable so that sellers and buyers can agree on the acceptability of different commercial batches or shipments. Polyethylene plastics are primarily identified based on two characteristics, namely density and flow rate (formerly known as melt index). The former is the criteria for type assignment as follows: Tür 0, Type I, Type II, Type III, and type IV, while the latter is used to specify categories, namely: [...]

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14 Kasım

ASTM D4279-2017 Taşıma Gemilerinde Su Buharı İletimi için Standart Test Yöntemi – Sabit ve Döngüsel Yöntemler

Anlamı ve kullanımı 4.1 These test methods are generally used for the following purposes: 4.1.1 To evaluate the materials and construction of a particular type of container, 4.1.2 To compare the performance of different types of containers, 4.1.3 Determine whether the protection of a particular product or application is adequate, ve 4.1.4 Maintain quality control. ASTM D4279-2017 Taşıma Gemilerinde Su Buharı İletimi için Standart Test Yöntemi – Constant and Cyclic Methods Step 1: Kapsam 1.1 These test methods cover the determination of the water vapor transmittance [...]

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14 Kasım

ASTM D4169-2016 Nakliye Konteynerleri ve Sistemlerinin Performans Testine İlişkin Standart Şartname

Anlamı ve kullanımı 4.1 Uygulama, tek tip bir sistem kullanarak ve gerçek dağıtımdaki seviyeleri temsil etmek için belirlenmiş test yöntemlerini kullanarak taşıma birimlerinin değerlendirilmesi için rehberlik sağlar.. Önerilen test seviyeleri, nakliye ve yükleme ve boşaltma ortamı ile mevcut endüstri/hükümet uygulamaları ve deneyimlerine ilişkin mevcut bilgilere dayanmaktadır. (1-13). 6 Testler aynı konteynerler üzerinde verilen sıraya göre yapılacaktır.. Performans testi olarak kullanılacak, this practice requires that the transport unit under [...]

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14 Kasım

ASTM D3654/D3654M-2019 Basınca Duyarlı Bandın Kayma Yapışmasına İlişkin Standart Test Yöntemi

Anlamı ve kullanımı 4.1 Prosedür A, basınca duyarlı bandın sabit stres altında standart bir çelik plakaya yapışma yeteneğini ölçer. Bu, bandın diğer yüzeylere yapışma yeteneğini içerebilir veya içermeyebilir.. 4.2 Prosedür B, C ve D, ambalajlama uygulamalarında sunta kutuların kapatılmasında yaygın olarak kullanılan bandın kesme yapışmasını belirlemek için kullanılabilir.. 4.3 Prosedür D, basınca duyarlı bandın standart olmayan suntaya kayma yapışmasını ölçer, astar tahtası, corrugated cardboard or other tested [...]

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14 Kasım

ASTM D3759/D3759M-2019 “Standard Test Method for Breaking Strength and Elongation of Pressure Sensitive Tape”

Anlamı ve kullanımı 5.1 The information provided by this test method can be used for material specifications for product design and quality assurance applications. Can be used to compare different products. 5.2 The use of the test method must be related to the test purpose. One purpose is to determine the relative strength of the tape at the time of purchase or use. Another aim is to identify or characterize a specific backing material. 5.2.1 The test may be performed on the [...]

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14 Kasım

ASTM D3815/D3815M-2019 Standard Practice for Accelerated Weathering of Pressure Sensitive Tape with Open Flame Carbon Arc Exposure Equipment

Anlamı ve kullanımı 4.1 This practice does not necessarily directly simulate natural weathering exposure. 4.2 The results of this practice shall not be represented as equivalent to the results of any natural weathering test until the satisfactory relevance of the relevant material has been established. 4.3 Results may vary when operating conditions vary within the acceptable range of the instruments specified in Practice G151 and G152. ASTM D3815/D3815M-2019 Standard Practice for Accelerated Weathering of Pressure Sensitive Tape with Open Flame Carbon Arc Exposure [...]

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13 Kasım

ASTM D4498-2015 Standard Test Method for Thermal Failure Temperature in Hot Melt Adhesive Shear

Anlamı ve kullanımı 4.1 Thermal failure Temperature A limit temperature is set at which the adhesive shall not be exposed during use under shear loads. Adım 1: Kapsam 1.1 The purpose of this test method is to determine the temperature of the stratification of samples bonded with hot melt adhesive under static shear forces. 1.2 Values expressed in SI units shall be considered standard. Parantez içinde verilen değerler yalnızca referans amaçlıdır. 1.3 Bu standardın tüm güvenlik konularını ele alması amaçlanmamıştır. [...]

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13 Kasım

ASTM D4499-2015 Standard Test Method for Thermal Stability of Hot Melt Adhesives

Anlamı ve kullanımı 5.1 Hot melt adhesives usually need to be used at higher temperatures to make the viscosity of the adhesive low enough that it can be easily handled in typical hot melt equipment. Adhesive changes caused by exposure to the harsh environment required for hot melt processing can disrupt the adhesive application process and may affect the quality of the adhesive bond. Changes in adhesive viscosity may affect the amount of adhesive dispensed by the sizing machine. Phase [...]

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13 Kasım

ASTM D5105-2019 Standard Practice for Accelerated Outdoor Weathering of Pressure-Sensitive Tape Using Concentrated Natural Light

Anlamı ve kullanımı 4.1 This practice provides a way to qualitatively assess the impact of outdoor weathering on pressure-sensitive tapes. The resistance of the strip to outdoor weather is determined relative to the resistance of the control strip with known stability. 4.2 If the tests described in this practice produce the same type of degradation as in real time exposure to the same material, the results of these short-term tests may be used to determine the quantitative effects of natural weathering. 4.3 [...]

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