GB 338-2004工业用甲醇
本标准规定了工业用甲醇的要求、试验方法、检验规则及标志、包装、运输、贮存和安全等。
本标准适用于以煤、焦油、天然气、轻油、重油为原料合成的工业用甲醇。该产品主要用于化学工业、医药工业、农药行业，也可作为燃料使用。
乙醇是甲醇的同系物，其物理化学性质与甲醇很相近，加之精细甲醇的纯度很高（99．96％以上），主峰很宽，容易掩盖乙醇峰，而且在多数固定液上，乙醇峰是在甲醇峰之后流出，受主峰影响严重，这就使得甲醇中微量乙醇的分析成为一个难题。国内现在很多企业都采用GB338—2004标准进行此项分析。
国标中采用6米的山li醇填充柱，完成一次分析需要30min左右，效率低，无法满足生产检测的需要，使用受限。
浩瀚色谱（山东）应用技术开发有限公司，研制《GB338工业用甲醇测定升级气相色谱法》，对国标进行升级，完善，增加切割/反吹系统，把主成分甲醇切出去，分析时间仅需标准的1/4，效率高，满足工业大规模生产检测的需要，在安捷伦，岛津，赛默飞，瓦里安，布鲁克，PE上，测试结果满意。
浩瀚色谱，提供详细的分析方案
名称：填充柱
固定相：专用
规格：4m*1/8
型号：HH-Methanol-IV
应用：GB_338-2004_工业用甲醇中微量乙醇的测定
适用于：
安捷伦7890,7820,8860,8890,6890,5890,4890，在线，实验室，便携式
岛津GC-14C，GC-2010，GC-2014，GC-2018，GC-2030
赛默飞1310,1300,1600,1610
瓦里安3800系列
布鲁克，PE580,590,680,690,磐诺，川仪，北分瑞利，东西电子，天瑞，天美，科创，华爱，捷岛，福立，鲁南瑞虹
GB 338-2004 Industrial Methanol
This standard specifies the requirements, test methods, inspection rules, labeling, packaging, transportation, storage, and safety of industrial methanol.
This standard is applicable to industrial methanol synthesized from coal, tar, natural gas, light oil, and heavy oil as raw materials. This product is mainly used in the chemical industry, pharmaceutical industry, pesticide industry, and can also be used as fuel.
Ethanol is a homologue of methanol, and its physical and chemical properties are very similar to methanol. In addition, fine methanol has a high purity (over 99.96%) and a wide main peak, which easily masks the ethanol peak. Moreover, on most stationary liquids, the ethanol peak flows out after the methanol peak, which is severely affected by the main peak. This makes the analysis of trace amounts of ethanol in methanol a difficult problem. Many domestic enterprises now adopt the GB338-2004 standard for this analysis.
The national standard uses a 6-meter Shan Li alcohol packed column, which takes about 30 minutes to complete one analysis, with low efficiency and cannot meet the needs of production testing, limiting its use.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed the "GB338 Industrial Methanol Determination Upgrade Gas Chromatography Method", which has upgraded and improved the national standard by adding a cutting/blowback system to remove the main component methanol. The analysis time only requires 1/4 of the standard, and the efficiency is high, meeting the needs of large-scale industrial production testing. The test results have been satisfactory on Agilent, Shimadzu, Thermo Fisher Scientific, Varian, Brooke, and PE.
Vast chromatography provides detailed analysis solutions
Name: Filler Column
Fixed phase: Dedicated
Specification: 4m * 1/8
model: HH-Methanol-IV
Application: GB_338-2004_ Determination of Trace Ethanol in Industrial Methanol
Applicable to:
Agilent 7890782088608890689059058904890, online, laboratory, portable
Shimadzu GC-14C, GC-2010，GC-2014，GC-2018，GC-2030
Thermo Fisher Scientific 1310130016001610
Varian 3800 Series
Brooke, PE580, 590680690, Panno, Chuanyi, Beifen Ruili, Dongxi Electronics, Tianrui, Tianmei, Kechuang, Huaai, Jiedao, Fuli, Lunan Ruihong
滕州市浩瀚色谱仪器技术服务有限公司
电话：0632-5667636
传真：0632-5667636
手机：15562228838,13963221227
地址：山东滕州市平行路（商务部和技术部）
邮箱：wangxiaoying9@126.com
QQ:1404939462
联系人：王经理
网址：www.haohansepu.com