ISO 21760-2:2019 PDF

Name: ISO 21760-2:2019 — Adhesives for organic electronic devices — Determination of water vapour transmission rate — Part 2: Edge seal methods
SKU: ISO 21760-2:2019
Price: 25 EUR
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Adhesives for organic electronic devices — Determination of water vapour transmission rate — Part 2: Edge seal methods

Название (английский):

ISO 21760-2:2019

Adhesives for organic electronic devices — Determination of water vapour transmission rate — Part 2: Edge seal methods

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 22 мая 2019 г.
Издание:: ISO IS 21760 edition 1 version 1
ICS:: 83.180

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Описание (английский):

This document specifies four methods for determining the water vapour transmission rate through the cross-section of an adhesive for edge seal in organic electronic devices, such as organic light emitting diodes and organic photovoltaic cells. The methods provide rapid measurement over a wide range of water vapour transmission rates.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview - ISO 21760-2:2019 (Adhesives for organic electronic devices)

ISO 21760-2:2019 specifies edge seal methods to determine the water vapour transmission rate (WVTR) through the cross-section of adhesives used as edge seals in organic electronic devices (for example, OLEDs and organic photovoltaic cells). The standard defines a water transmission cell (lid, base plate and adhesive test specimen) and describes four rapid measurement routes that cover a wide range of water vapour transmission rates.

Key topics and technical requirements

Purpose: Measure WVTR through the adhesive cross-section used for edge sealing flexible organic electronic devices. WVTR unit: g/(m²·24 h).

Four measurement methods: The test uses one of the methods from ISO 15106 series:

ISO 15106-3 (electrolytic detection sensor)
ISO 15106-5 (pressure sensor)
ISO 15106-6 (atmospheric pressure ionization mass spectrometer)
ISO 15106-7 (calcium corrosion method)

Water transmission cell: Composed of a lid (upper substrate), base plate (bottom substrate) and adhesive specimen separating feed and permeation sides; a detector is placed on the permeation side.

Test specimen geometry:

Specimen width typically 3–10 mm; thickness typically 0.01–0.1 mm.
Base plate and lid sizes vary by method (typical base-plate diameters 30–200 mm for some methods; 20–100 mm square for calcium method).
Lid size must be equal to or larger than the outer periphery of the specimen.

Sample preparation and conditioning:

Condition specimens in vacuum or inert atmosphere; heating may accelerate conditioning.
For ISO 15106-7 (calcium), prepare cells in an inert atmosphere and use optically transparent substrates.

Test practice:

Minimum three specimens unless otherwise agreed.
Preferred test conditions include temperatures 25, 40, 60 or 85 °C with high relative humidity (typically 85–90% RH).
Calculation uses the transmission area 2Lc(La + Lb) as defined in the standard.

Reporting: Test report must reference ISO 21760-2:2019 and include method used, specimen dimensions, material details, conditioning, test conditions, and averaged test result (rounded to two significant figures).

Patent note: The introduction flags a patent related to the water permeation cell structure; license terms may apply.

Applications and users

Who uses it: Adhesive manufacturers, materials scientists, R&D labs, quality-control engineers, and device manufacturers of OLEDs, organic photovoltaics and other organic electronic devices.

Why it matters: WVTR of edge-seal adhesives directly affects device lifetime and reliability by limiting moisture ingress that degrades organic layers and metal contacts. ISO 21760-2 provides standardized, rapid methods to compare adhesives and qualify sealing processes.

ISO 21760-2:2019 PDF

Abstract

Похожие стандарты

Overview - ISO 21760-2:2019 (Adhesives for organic electronic devices)

Key topics and technical requirements

Applications and users

Related standards

Технические детали

SIST EN ISO 15106-3:2005

Plastics - Film and sheeting - Determination of water vapour transmission rate - Part 3: Electrolytic detecti…

ISO 15106-5:2015

Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 5: Pressure sensor meth…

ISO 15106-6:2015

Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 6: Atmospheric pressure…

ISO 15106-7:2015

Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 7: Calcium corrosion me…