真密度/绝对密度是固体材料特别是粉体颗粒的一项重要物理性能指标，其数值大小决定于材料化学组成纯度及固态致密性，其值直接影响材料质量、性能及用途。传统的测定材料真密度的方法是基于阿基米德原理的比重瓶法，因手动操作及液体排除的不精确性带来的系统误差及测试误差较大，ISO标准组织于2014年正式推行气体体积置换法标准ISO 12154用于测试真密度。精微高博公司JW-M100真密度测定仪，能快速、高精度测量各种粉体、块体等固体材料的真体积及真密度，样品室体积范围1cm3-100cm3，平均完成一次分析约需3min，测试效率高，非常适合质检的快速分析。 
仪器参数
真密度测试范围：0.0001g/mL 至 无限大；
测试分辨率：0.0001g/mL；
测试效率：每次测试仅需3min；
吸附质气体为N2,或He；
样品腔有两种：10mL和100mL，
样品杯有两种：10mL和100mL，
转换仓有10mL；
整机质量为10kg；
分析模块尺寸及主机尺寸均在下表中列出；
仪器的工作温度为20 - 28℃；
应用域：
陶粒、压裂支撑剂、金属粉、石墨负材料、碳素材料、陶瓷、氧化铝、催化剂、滤材、核燃料、石油化工、土壤、肥料、炭黑、焦炭、纤维、矿物、制药、化妆品、水泥、粉末食品、干燥剂、粉末金属、离子交换树酯、硅胶、二氧化钛、固体泡沫等。

JWGB Sci.&Tech. Ltd. (JWGB) founded in 2004, is a first-class powder characterization solution ａnd service supplier worldwide. We focus on the test of powder’s surface area, pore size ａnd distribution; meanwhile, we offer a broad range of physisorption analyzers ａnd density measurements.

Decade years, relying on a multi - interdisciplinary professional team, JWGB designs ａnd invented the corresponding surface test instruments, makes the test of powder ａnd porous materials more accurate, precise, ａnd reliable. Covering electric materials, catalysts, REEs, ａnd ceramics, JWGB helps customer in physical property characterization, which earns us favorable comment.

2004, JWGB was founded. The birth of the first generation of dynamic surface area analyzer.

2005, Second Generation dynamic surface area analyzer launch

2006, Dynamic pore size analyzer is favored by customers in the market

2007, The first volumetric surface area analyzer debuted in the domestic market

2008, Chairman Zhong Jiaxiang on the cover of "China Powder Industry"

2009, JWGB Wins Outstanding New Product for Scientific Instruments

2010, JW series products passed scientific & technical appraisement.

2011, Chairman zhong Jiaxiang launched JWGB＇s self-developed DFT analysis software at the annual meeting of powder industry

2012. JWGB Wins Innovation Award.

2013, JW-BK132F surface area ａnd pore size analyzer won the title of "good domestic instrument".

2014. The 10th Anniversary of the Establishment of JWGB.

2015, Launch of a new generation of dynamic surface area analyzer

2016, Won the prize of the Ministry of Science ａnd Technology of PRC.

2017, JWGB Financing Restructuring. Start ingesting a new journey in the year of entrepreneurship.

2018. Relocation to a new location.

2018, vapor sorption instrument on the market.

2019, win-win cooperation. Exclusive agent 3P INSTRUMENTS＇ mixSorb series analyzers, ａnd promote sales ａnd service in China.

Future, continuous innovation.