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这项研究旨在探索和深入了解人们对自己生产或购买的产品的认识和感受、这种认识和感受对国际贸易产生的作用,以及其对产品设计、制造、销售和交付等方面产生的影响。
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让 UL 引以为豪的是与公众分享New Science。通过在四大初始领域内进行根本探索并测试方法、软件和标准,新科技带来的创新成果向我们展示了让世界变得更安全的重要方式。
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UL 是一家独立的从事安全科学事业的全球化公司,主要为五大战略业务领域提供专业服务。

我们为客户提供跨行业的专业服务,帮助其在全球市场取得成功。

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通过关键词或过滤功能按批准日期或发布日期搜索标准和纲要。

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UL 一直在寻求工业、学术和终端用户领域的专家,以协助我们制定共识性标准。

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Certificate verification service

ULCVS is a jurisdictional authority's access vehicle to UL's extensive database of code- and standard-compliant alarm systems. You can use this free, online service to:

  • Identify buildings or risks protected by compliant alarm systems
  • See protection details for any protected property you select
  • Identify the UL Listed alarm service companies capable of providing service in any area of the country you specify

In today's environment, businesses constantly seek the most cost-effective way to operate. Often, that means changing alarm service providers when a better opportunity arises. For those concerned about ongoing code compliance, relying solely on paper-based certificates introduces the risk of making important decisions based on out-of-date information. ULCVS's direct, online connection to UL's certificate database assures you the most accurate, up-to-date information available anywhere.

ULCVS is one of the tools UL offers to insurance professionals, fire authorities and government agencies charged with assuring that alarm systems and services comply with appropriate codes and standards. There is no cost to jurisdictional authorities who access ULCVS. Fire service jursidictional authorities may also benefit from membership in UL's fire alarm certificate user's group. Click here for a comprehensive feature overview.

Subscribing to ULCVS

Before you can use ULCVS for the first time, you will need to fill out an application and receive a user name and password. To start the process, please fill out and submit the application.

When we receive your application, UL will send you a ULCVS computer account information kit, along with copies of the ULCVS service agreements for your signature. A sample of the service agreement can be viewed here.

Your account will be activated when you receive the information kit. Simply log on and try it out. To continue using the service for more than 30 days, please sign and return the subscriber application.