美国AccuStandard, Inc  www.accustandard.com
Accustandard（全球唯一一家合成并净化209单个的聚氯联苯同类物的公司），全球化大型标样库 - 27000 种！ 有机、无机、质检、混合标样、QC标样、委托合成标样。 
专业技术支持，高质量的产品，便捷的查询、订货服务，最大程度地满足化学家的要求。
 美国Accustandard公司是唯一经过NIST/NVLAP、EPA认证的标准物质的专业生产商，可以为EPA、ASTM、NIST生产 各类标样35000种，涉及农药、石化、环境、食品、无机、烟草等，所有产品均可以提供 质检证书、材料安全数据卡。AccuStandard可以提供多种包装：从1ML液标到10MG、 500MG纯品，还可以根据用户的要求定制产品，以满足不同实验的需求。
美国NIST标准品及标准件。包括食品与农业、健康与诊断、法医学、环境、高纯试剂、和工业卫生等行业。

1）农药标样 700种农药纯品、3000种农药混标 
2）环境标样 全部PCD（多氯联苯）标样系列-209种、EPA检测方法用标样 
3）质控与转向测试 供水/废水测试用标样 
4）石化标样 LUFT/LUST总石油烃标样 
5）无机标样 专项测试标阳、等离子发射、原子吸收、离子色谱标样、硫标样等 
6）食品分析标样 食品分析、防腐剂、杀菌剂、维生素、类脂类标样等 
7）国际标样 加拿大、欧洲、日本、韩国规定检测方法之专用标样 
8）化学品标样盒 多品种标样盒、任选组合标样盒、Theata标样盒等 
　在美国，许多政府管理部门、州政府、工业实验室和仪器制造商都信任AccuStandard 的. TPH 校准标样，如：美国海军、美国环保局、美国海岸巡逻队、加利福尼亚州、马里兰州、. 佛罗里达州和Agilent、Varian 、Test America、Severn Trent、Chevron、Ceimic等公司，共有２１个洲将AccuStandard 作为洲专用标样．

百灵威  J&K

AccuStandard is the leading supplier of analytical reference standards for the environment, industry and research. Providing highly purified solutions and mixtures for organic, inorganic, petrochemical, quality control and proficiency testing (PT). AccuStandard was one of the first companies accredited by NIST/NVLAP (Lab Code 200389-0) to offer Proficiency Tests. The AccuStandard brand is on over 30,000 current products. 

The successful partnership between the thousands of loyal customers and the AccuStandard family has produced the widest product selection and the most satisfying customer service in the Chemical Reference Standards business. In the years since 1986, the company has grown to the optimum size for customer service. With 60 people (1/3 are degreed chemists), we are large enough to have the resources to support your needs, and small enough to respond quickly.

The AccuStandard brand is on over 35,000 current products. Compare us to companies in the business with a few hundred or a few thousand products, as well as to those companies that carry standards as merely one of hundreds of lab supply products. AccuStandard is the expert because it focuses on Chemical Reference Standards. AccuStandard was one of the first companies accredited by NIST/NVLAP.
To satisfy and continue this growth AccuStandard operates out of a modern 34,000 square foot manufacturing facility.