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ISO (Uluslararası Standardizasyon Örgütü) ulusal standart kuruluşlarının küresel bir ittifakıdır (ISO üyesi kuruluşlar). Uluslararası standartların geliştirilmesi genellikle ISO teknik komiteleri aracılığıyla yürütülür.. Teknik komite oluşturulmuş bir konu ile ilgilenen her üye kuruluşun o komitede temsil edilme hakkı vardır.. ISO ile irtibat halinde olan uluslararası resmi ve sivil toplum kuruluşları da bu çalışmaya katılıyor. ISO, Uluslararası Elektroteknik Komisyonu ile yakın işbirliği içinde çalışır. (IEC) elektroteknik standardizasyonla ilgili tüm konularda.

Uluslararası standartlar Bölüm 1'de verilen kurallara uygun olarak hazırlanmıştır. 3 ISO/IEC Direktifi.

The draft international standards adopted by the Technical Committee will be circulated to member bodies for voting. Uluslararası bir standart olarak yayın, en azından onay gerektirir 75% of member bodies.

Please note that some elements of this section of ISO 6603 May be the subject of patent rights. ISO bu tür patentlerin herhangi birinin veya tamamının tanımlanmasından sorumlu değildir..

International standard ISO 6603-2 Teknik Komite ISO/TC tarafından geliştirildi 61, Plastikler, Alt Komite SC 2, Mechanical Properties.

The second edition cancelled and replaced the first edition (ISO 6603-2:1989), which had been technically revised.

ISO 6603 consists of the following parts under the general heading Plastics – Sert plastiklerin delinme darbe davranışının belirlenmesi:

— Parça 1: Enstrümantal olmayan darbe testi

— Parça 2: Instrumental impact testing

The appendices A to E of this part of ISO 6603 are for reference only.

ISO 6603-2-2000 “Plastik sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Enstrüman darbe testi”

1 menzil
ISO'nun bu kısmı 6603 specifies a test method for determining puncture impact properties of rigid plastics in the form of flat specimens using instruments that measure force and deflection. Applies if a force-deflection or force-time plot recorded at a nominal constant firing pin speed is necessary to characterize impact behavior in detail.

If ISO 6603-1 is sufficient to characterize the impact behavior of plastics by impact failure energy thresholds based on many samples, ISO 6603-1 May be used.

ISO'nun bu kısmı 6603 is not intended to explain the mechanisms that occur at each particular point in the force-deflection diagram. These explanations are the task of scientific research.

Note also article 1 of ISO 6603-1:2000.

ISO 6603-2-2000 “Plastik sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Enstrüman darbe testi”

2 Normatif referanslar
The following normative documents contain provisions which, by reference herein, constitute the provisions of this part of ISO 6603. Tarihli referanslar için, no subsequent revisions or amendments to these publications will apply. Fakat, Parties to an agreement based on this part of ISO 6603 are encouraged to investigate the possibility of applying the latest version of the following normative documents. Tarihsiz referanslar için, the latest version of the normative document referred to applies. Members of ISO and IEC maintain a register of international standards currently in force.

ISO 2602:1980, Statistical interpretation of test results – mean Estimators – confidence intervals.

ISO 6603-1:2000, Plastikler. Determination of puncture impact behavior of rigid plastics. Parça 1: Non-instrumental impact tests.

3 Terimler ve tanımlar
For the purposes of this part of ISO 6603, aşağıdaki terimler ve tanımlar geçerlidir.

3.1 Impact velocity

The speed of the firing pin relative to the support at impact

Not 1: The impact velocity is expressed in meters per second (Hanım).

3.2 Force F

The force exerted by the firing pin on the specimen in the direction of impact

Not 1: Force is expressed in Newtons (N).

3.3 Deflection l

The relative displacement between the firing pin and the specimen support starts from the first contact between the firing pin and the specimen

Not 1: Deflection is expressed in millimeters (mm).

3.4 Energy

Energy used to deform and penetrate the specimen up to the deflection L

Not 1: Energy is expressed in joules (J).

Not 2 The energy is measured as the integral of the force-deflection curve from the point of impact to the deflection l.

ISO 6603-2-2000 “Plastik sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Enstrüman darbe testi”

3.5 Maximum power FM

The most power that occurs during the test

Not 1: The maximum force is expressed in Newtons (N).

3.6 Deflection lm at maximum force

Deflection at maximum force FM

Not 1 Deflection at maximum force is expressed in millimeters (mm).

3.7 Energy to maximum strength

The energy expended at maximum force reaches deflection lM

Not 1: The most powerful energy is expressed in joules (J).

3.8 Puncture deflection lP

The force is reduced to half the deflection of the maximum force F M

See Figures 1-4 Ve 3.9 notes.

Not 1 Puncture deflection is expressed in millimeters (mm).

3.9 Puncture energy

Energy expended until the puncture deflects lP

See Figures 1 through 4 and note 2.

Not 1: Puncture energy is expressed in joules (J).

Not 2 A probe mounted at a distance from the impact tip records the friction force acting between the cylindrical part of the firing pin and the piercing material when testing hard materials. The corresponding friction energy should not be included in the piercing energy, so the piercing energy is limited to that deflection, where the force drops to half of the maximum force FM.

ISO 6603-2-2000 “Plastik sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Enstrüman darbe testi”

3.10 Impact Failure

Mechanical properties of the material to be measured, which may be of one of the following types (notu gör) :

A) YD yIELDING (zero slope at maximum power), then DEEP yielding
B) YS yIELDING (Zero slope at maximum power) Daha sonra (at least partially) cracked the S bench
C) yIELDING of Yu (zero slope at maximum power) Then u unstable cracking
D) no yielding for new features

Not 1: A comparison of Figures 2 Ve 3 shows that puncture deflections l, P and puncture energy EP are the same for failure types YS and YU. As shown in Figure 4, in the case of failure type YU, the deflection and energy values are the same at maximum and puncture. For complex behaviour, Ek A'ya bakın.

Figür 1 — An example of a force-deflection diagram of the typical appearance of a specimen after deep drawing and testing (using lubrication) through yield (zero slope at maximum force)

Plastikler – Sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Instrument impact test Diagram 1

Figür 2 — Example force-deflection plot of failure by yield (zero slope at maximum force), followed by steady crack growth, and typical appearance of the specimen after testing (using lubrication)

Plastikler – Sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Instrument impact test diagram 2

Figür 3 — Examples of force-deflection plots through yield (zero slope at maximum force) and typical appearance (lubrication) failure of a tested specimen

Plastikler – Sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Instrument impact test diagram 3

Note that the natural vibration of the force detector can be seen after the unstable cracking (firing pin and weighing sensor).

Figür 4 — An example force-deflection diagram of an unyielding failure followed by unstable crack growth and a typical appearance of the specimen after testing (using lubrication)

Plastikler – Sert plastiklerin delinme darbe davranışının belirlenmesi – Parça 2: Instrument impact test diagram 4

Yalnızca standart bilgi bölümü herkese açıktır. İçeriğin tamamını görmek için, standardı resmi kanallardan satın almanız gerekiyor.