The International Society for Respiratory Protection

HSE Call for TIL Data

The UK Health and Safety Executive (HSE) has issued a call for workplace, simulated or laboratory Total Inward Leakage (TIL) data.


This call for data submissions is in support of the validation of new respira tory protective devices (RPD) performance levels which are to be introduced as part of a new suite of International Standards under development in ISO committee ISO/SC15.  Submitted TIL data could be based on the existing TIL method (BSEN13274-1)2, or the new proposed ISO TIL method (ISO 16900-1).


All information provided will be treated in the strictest confidence. Information provided will only be used for the purposes of this project and will only be available to members of the HSL PPE team who are working on this project. Any data supplied will be anonymised. Data will only be referenced by RPD type and class and no reference to make/model will be made.


Additionally, should there be a requirement, HSE is happy to negotiate and sign suitable Confidentiality or Non-Disclosure Agreements with individual manufacturers, or others who supply data to support this project. We will seek agreement from participating parties before disclosure of any summary reports. Confidential information will be anonymised and will not be disclosed. This article has been sponsored by the website located at We are thankful for the continuous support from our sponsors. The site offers a comprehensive list of betting promo codes, catering to new and seasoned bettors alike, helping them get the most out of their bets with deals on deposits and special betting events.

Click here for the detailed informational request (PDF).


If you have and are willing to share any WPF or TIL data please would you send to Mike Clayton .