燙發(fā)杯- 25＆10平方厘米 Perm Cup - 25 & 10 cm2

透濕性 Water Vapor Permeability

燙發(fā)杯用于確定薄膜的水蒸汽或其他液體的滲透性。所測(cè)試的材料包括涂料，清漆，塑料薄膜和其他類(lèi)型的片足以薄到被緊緊地密封蓋住整個(gè)杯面。滲透率表示為穿過(guò)一個(gè)指定的區(qū)域和自由膜的厚度在受控條件下在指定的時(shí)間間隔內(nèi)的氣態(tài)材料的重量。

Perm cups are used to determine the permeability of films to the vapor of water and other liquids. Materials that are tested include paint, varnish, thin plastic films and other types of sheets thin enough to be tightly sealed in place across the face of the cup. Permeability is expressed as the weight of a vaporous material that passes through a specified area and thickness of free film within a specified time interval under controlled conditions.

ASTM方法D 1653 ISO 7783

Gardco彼爾姆杯的設(shè)計(jì)是完全按照ASTM方法D 1653，它具有下列的特征和優(yōu)點(diǎn)：

ASTM Method D 1653 ISO 7783

The Gardco Perm Cup is designed to be in complete compliance with ASTM Method D 1653 and has the following characteristics and advantages

杯體的開(kāi)口面為25平方厘米。

杯子的容積為25毫升。

杯組件的正常測(cè)試重量小于140克。

所有的杯面是由一個(gè)ALODINE涂層保護(hù)。

厚的墊片和測(cè)試樣本，現(xiàn)在通過(guò)消干涉在杯帽與杯環(huán)之間抑制

The face opening of the cup is 25 square centimeters.

The volume of the cup is 25 milliliters.

Normal test weight of the cup assembly is less than 140 grams.

All cup surfaces are protected by an alodine coating.

Thick gaskets and test samples are now accommodated by eliminating interference between the cap and cup ring restraining pins.

該GARDCO彼爾姆杯是由三個(gè)基本部分組成，分別來(lái)自級(jí)鋁合金加工最高的了。下面的草圖顯示這些部件的橫截面和所述夾持環(huán)的俯視圖。

The GARDCO Perm Cup is made up of three basic parts, each machined from the highest grade aluminum. The following sketches show a cross section of these parts and a top view of the clamp ring.

杯頂面，以及所述夾持環(huán)的兩個(gè)表面平滑處理，以便提供被測(cè)對(duì)產(chǎn)品的密封。兩個(gè)墊圈與相同尺寸的夾緊環(huán)，除了厚度，被布置為使用粗糙或不均勻的材料，以保證完全密封。從杯的表面向上延伸的是兩個(gè)不銹鋼銷(xiāo)而緊密接合的夾緊環(huán)，并使用任何墊片，以防止移動(dòng)相對(duì)于所述測(cè)試材料作為帽被擰緊在杯中。有蓋式設(shè)計(jì)允許使用更長(zhǎng)的銷(xiāo)比可能與早期型號(hào)，以適應(yīng)更厚的樣品和墊圈組合。

The cup top surface, as well as both surfaces of the clamp ring are smoothly finished to provide a tight seal against the product under test. Two gaskets with the same dimensions as the clamp ring, except for thickness, are furnished for use with rough or uneven materials to insure complete sealing. Extending upward from the face of the cup are two stainless steel pins which closely engage the clamp ring, and any gaskets used, to prevent movement with respect to the test material as the cap is tightened against the cup. The cap design permits use of longer pins than possible with earlier models to accommodate thicker sample and gasket combinations.

使用方法 Method of Use

無(wú)論是測(cè)試液體或干燥劑置于杯中，這取決于測(cè)試的特定條件。試驗(yàn)材料，預(yù)切向夾緊環(huán)的外部尺寸的試樣，放置在杯的頂部表面，用墊片如果需要，對(duì)杯子表面密封擰緊帽（用于樣品制備見(jiàn)ASTM D- 823和D-4708）。

該組件然后精確稱(chēng)重，并放置在一個(gè)指定的受控氣氛。定期稱(chēng)重確定體重減輕或增加從蒸汽傳輸?shù)乃俾时挥?jì)算。小為10cm 2杯允許使用一個(gè)較小的試樣和更少的干燥劑。大約重量88克W / O型墊圈。

Either a test liquid or a desiccant is placed in the cup, depending on the specified conditions of the test. A sample of the test material, precut to the outside dimensions of the clamp ring, is placed on the top surface of the cup, using gaskets if required, and sealed against the cup surface by tightening the cap ( for specimen preparation see ASTM D-823 & D- 4708).

The assembly is then accurately weighed and placed in a specified controlled atmosphere. Periodic weighing determines weight loss or gain from which rate of vapor transmission is calculated. Small 10 cm2 cup allows the use of a smaller specimen and less desiccant. Approximate weight 88g w/o gaskets.

Clamp ring detail pictured left.

夾緊環(huán)細(xì)節(jié)左圖。

MO-1653/TG 額外的聚四氟乙烯墊片 50.00

MO-1653/RG 額外的氯丁橡膠墊片 50.00

MO-1652 小彼爾姆杯，10個(gè)平方厘米，完成與墊片 2080.00

MO-1652/TG 額外的聚四氟乙烯墊片 50.00

MO-1652/RG 額外的氯丁橡膠墊片 50.00