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上海荣计达仪器科技有限公司经营水泥实验仪器、混凝土实验仪器、公路土工实验仪器、干粉砂浆保温砂浆实验仪器、沥青防水材料实验仪器、油漆涂料实验仪器、无损检测等实验仪器。经营水泥实验仪器、混凝土实验仪器、公路土工实验仪器、干粉砂浆保温砂浆实验仪器、沥青防水材料实验仪器、油漆涂料实验仪器、无损检测等实验仪器。公司产品凭借过硬的质量、完善的售后服务、合理的价格销往各大院校、检测单位、建材企业、工程建设单位。在消费者当中享有较高的地位和良好的口碑，用户遍布国内近三十个省市、自治区，并远销国外，与用户建立了长期稳定的合作关系。公司实力雄厚，重信用、守合同。有健全的管理制度和完善健全的质量管理体系。并有反应迅速、服务周到的售后服务系统。我们将不懈努力、一如既往以优异的品质为客户服务。
Shanghai Rongjida Instrument Technology Co., Ltd. ** operates cement experiment equipment, concrete experiment equipment, highway geotechnical experiment equipment, dry mortar thermal insulation mortar experiment equipment, asphalt waterproof material experiment equipment, paint coating experiment equipment, non-destructive testing and other experimental equipment. ** Operating cement experiment equipment, concrete experiment equipment, highway geotechnical experiment equipment, dry mortar thermal insulation mortar experiment equipment, asphalt waterproof material experiment equipment, paint coating experiment equipment, non-destructive testing and other experimental equipment. Company products rely on excellent quality, perfect after-sales service, reasonable prices sell well in major universities, testing units, building materials enterprises, engineering construction units. It enjoys a high status and a good reputation among consumers, and has customers in nearly 30 provinces, cities, and autonomous regions in China, and has been exported to foreign countries. It has established long-term and stable cooperative relationships with users. The strength of the company, credit and contract compliance. Have a sound management system and a sound quality management system. And has a responsive and thoughtful after-sales service system. We will make unremitting efforts to serve our customers with excellent quality as always.
一、石膏表面吸水率测定仪概述：
可勃吸收性测定仪是根据GBT 9775-2008 纸面石膏板,规定的基本参数和要求而设计的。此标准适用于测定各种纸或纸板表面的吸水性。但不适用于准确评价纸或纸板的书写性能。
纸与纸板表面吸水量（Cobb）值：单位面积的纸和纸板在一定压力、温度下，在规定时间内表面所吸收的水量，以g/㎡计。
具体公式如下：C=（G2-G1）×100。
式中：
C-可勃吸水值；
G2-吸水后称出之试样质量
G1-吸水前称出之试样质量。
纸和纸板吸收性测定仪是纸和纸板表面吸水性试验的常规仪器，亦称为纸张表面吸收重量测定仪。这种仪器采用吸收性试验多种方法中的可勃（Cobb）试验法，因此也称为可勃吸收性测定仪。
I. Overview of Water Absorption Tester for Gypsum Surface
Cobble absorption tester is designed according to GBT 9775-2008 paper surface gypsum board, specified basic parameters and requirements. This standard is applicable to determine the water absorption of various paper or cardboard surfaces. However, it is not suitable for accurately evaluating the writing performance of paper or cardboard.
Cobb value of paper and paperboard surface: The amount of water absorbed by the surface of paper and paperboard per unit area under a certain pressure and temperature within a specified time, in g / ㎡.
The specific formula is as follows: C = (G2-G1) × 100.
In the formula:
C-cobble water absorption value;
G2-Weight of sample after water absorption
G1-Weight of the sample before water absorption.
Paper and cardboard absorbency tester is a conventional instrument for paper and cardboard surface water absorption test, also known as paper surface absorption weight tester. This instrument uses the Cobb test method among various methods of absorbance test, so it is also called the absorbability analyzer.
二、石膏表面吸水率测定仪技术参数:
1.金属圆筒内截面积为100±0.2㎝（相应内径为112.8±0.2mm），圆筒高为50mm，圆筒环面与试样接触部分应光滑。
2.吸水纸定量为200～250g/㎡，其吸收速度为75mm/10min。当吸水纸单层定量小于200～250 g/㎡时，可以用多层叠加以满足要求。
3.试验用水量：100mm±5ml。
4.尺寸与重量：尺寸：<250×300×420（mm），重量：15kg
配置
底板一个
立柱两个
金属圆筒一个
金属盖一个
旋转手柄一个
说明书合格证一份
Technical parameters of gypsum surface water absorption tester:
1. The internal cross-sectional area of the metal cylinder is 100 ± 0.2㎝ (the corresponding inner diameter is 112.8 ± 0.2mm), the height of the cylinder is 50mm, and the contact part of the torus of the cylinder with the specimen should be smooth.
2. The weight of absorbent paper is 200 ～ 250g / ㎡, and its absorption speed is 75mm / 10min. When the single-layer basis weight of the absorbent paper is less than 200 ～ 250 g / ㎡, multiple layers can be used to meet the requirements.
3. Test water volume: 100mm ± 5ml.
4. Size and weight: Size: <250 × 300 × 420 (mm), weight: 15kg
Configuration
Bottom plate one
Two columns
One metal cylinder
Metal cover one
Rotary handle
6. A certificate of instruction
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13761118616
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021-61997300
荣计达XS-100石膏表面吸水率测定仪 纸张表面吸收重量测定仪
¥ 2350.00
¥2350.00
100台可售
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