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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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行业

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。

标准目录
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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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了解 UL 标准如何作为衡量和判断基准,让消费者和企业对其购买的产品和服务充满信心。

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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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Report or procedure document revisions

  1. Obtain a copy of the existing document via CDA; retain the name of the file that is downloaded from CDA.
  2. Eletronic report and procedure document attachments will be in a rich text format (.rtf). Retain this format, as it is a universal word processing format and must be uploaded as such into UL's systems
  3. Turn on the Track Changes feature of Microsoft Word:
    • Under Tools, select Track Changes.
    • Select Highlight Changes.

    • Select Track Changes while editing (all three boxes should be checked).
    • Select Options and make sure they are set as follows (these are the default settings):
    • Once the above is set and saved in the Word settings the first time, a short-cut alternative is to double-click the 'TRK' item in the bottom toolbar in Word to turn on the Track Changes feature. This acts as a toggle button; double-click again to turn off the feature.
  4. Make the desired changes. It is not necessary to change the revised date on the page being revised, since UL staff will do this for you. However, if desired, enter the revision date in ISO format (yyyy-mm-dd)
  5. Save the document, retaining the original document name as provided on CDA; close. Do not combine content groups (such as combining the description and test record), because this creates more work for both clients and UL.
  6. Submit the documents your usual UL contact.