Get The Right Cleaning 溶剂的选择

Sustainability and regulatory concerns are driving companies to look for alternatives to traditional solvents like N-Propyl Bromide (NPB), 三氯乙烯 (吨标煤), and perchloroethylene (四氯乙烯/ PERC) for metal parts cleaning and degreasing.  Hubbard-Hall has been helping manufacturers tackle these issues with lower-impact solvents or aqueous cleaning chemistries.

Current Regulatory Status: October 2023

  • 三氯乙烯2023年10月, EPA proposed a risk management rule to address unreasonable risk posed by trichloroethylene (吨标煤) to human health, including the final revised risk determination for 吨标煤
  • 全氯乙烯2023年6月, EPA proposed to ban most uses of 四氯乙烯 and establish a workplace chemical protection program (WCCP) for uses not prohibited to address the unreasonable risk to human health.
  • nPB:又称1-溴丙烷(1-BP), 2022年12月, EPA released a final revised risk determination for 1-BP. The final revised risk determination finds that 1-BP, 作为一个整体, presents an unreasonable risk of injury to health under its conditions of use. 1-溴丙烷的风险评价
  • 二氯甲烷: In November 2022, EPA released a final revised risk determination for methylene chloride. The final revised risk determination finds that methylene chloride 作为一个整体 substance presents an unreasonable risk of injury to health under its conditions of use.
需要寻找替代品
你目前的溶剂?
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In order for us to best help you as you navigate the challenges of the EPA’s proposed banned on trichloroethylene (吨标煤), fill out our questionnaire and a cleaning specialists will reach out to you with recommendations.

哪个是你的正确选择?

下一代溶剂

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溶剂清洗 or vapor degreasing is a process in which an organic solvent is used to dissolve organic contaminants on the component.

More environmentally friendly solvents such as 改性醇 (Dowclene™ and Dualene™) can be used in a vacuum degreaser for cost savings, safety, and efficacy. This type of solvent cleaning will require capital investment, including the purchase of a vacuum degreaser.

Tergo is a precision cleaning fluid that is a non-flammable, thermally and hydrolytically stable cleaner that can be dropped into an open top vapor degreaser with minimal changes or retrofitting.

水清洁剂

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水清洗 is a water-based process that utilizes chemical additives, surfactants and rinsing to remove contaminants.

We offer 70+ water-based chemistries for any soil, substrate or cleaning process.  过渡到水清洗, you should consider how this will impact your process with the use of heat, 多个坦克, 干燥时间和占地面积增加.

Cleaning celebrity, Mike Valenti, joined our podcast for a 2-part series on this very topic: 第1部分 & 第2部分.

寻找证据?

寻找证据?

This webinar hosted by TURI (Toxic Use Reduction Institute) showcases how CD Aero was able to find annual cost savings and productivity improvements when switching from solvent to aqueous cleaning with the help of our experts.

清洁是一个过程

Although chlorinated/fluorinated/brominated solvents have advantages in precision cleaning, there are other methods for removing soils from the surface of metal. Cleaning is considered a process because it is not just about the chemistry – good cleaning depends on several factors:

  • 金属型
  • 土壤类型
  • 零件几何
  • 可用的足迹
  • 澳门威尼斯人网上赌场清洁度要求
  • 吞吐量需求
  • 能源需求
  • EHS和法规
  • 废物处理
  • 成本

为什么要换一种选择?

12月20日, 2019, the EPA finalized the designation of 20 chemical substances as “high priority for risk evaluation” under the Toxic Substance Controls Act (TSCA). 包括二氯甲烷, 全氯乙烯(四氯乙烯/ PERC), n-Propyl Bromide (NPB) – which the EPA refers to as 1-bromopropane – and Trichlorethylene (吨标煤).

今天, these chemicals are moving through the process required by TSCA to evaluate any unreasonable risks they may present to human health or the environment.  The next step is risk management of these existing chemicals in order of priority. There are several actions EPA could take to address the unreasonable risk, including regulations prohibiting or limiting the manufacture, 处理, 分布, 商业用途, 或者处理化学物质, 是适用的.

溶剂 Risk Mitigation by Regulatory Bodies

In addition, different regulating bodies have different opinions on risk mitigation. 下面是OSHA如何, ACGIH and the EPA differ in acceptable exposure limits for 吨标煤/PEC/nPB/MEC.
溶剂OSHA (PEL) ppmACGIH (TLV) ppmEPA (ECEL) ppm
吨标煤100
250.004
四氯乙烯100250.14
NPBn/a0.10.05
MEC25/125*502/16*
传说:

Ppm -百万分之一
Tlv -阈值限制值
允许的暴露极限
Ecel – existing chemical exposure limit (8 hour)
Stel – short term exposure limit (15 minutes)

Ready to take the first step toward solvent replacement?
今天安排一次清洁咨询.