ASTM F1768-97 (2020) pdf free

04-12-2021 comment

ASTM F1768-97 (2020) pdf free.Standard Guide for Using Whistle Signals During Rope Rescue Operations.
This guide covers the methodology for the use ofwhistles as a means of communication during rope rescueoperations.
This standard does not purport to address all of thesafety concerns,if any, associated with its use. lt is theresponsibility of the user of this standard to establish appropriate safety,health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.3 This international standard was developed in accordance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.
There are no terms in this guide that require new orother than dictionary definitions.
Whistle signals are a simple and effective means ofcommunication between rescuers and those operating a rope-raising or ropelowering system. They may be used as aprimary means of communication or as a backup when radiosfail or when ambient noise makes them unintelligible.These same signals can be used in non-rescue situations,for example, by persons rappelling in caves.Using a whistle device, or method, with enough volumeto be audible over ambient noise and for the distancesinvolved, use the following pattern of whistle blasts to signalthe required action:Long Whistle Blast—Used to stop all move-ment until further instructions.Short Whistle Blasts—Means something orsomebody is moving up or requires to be moved up. Onhorizontal systems it would indicate movement of the loadtowards the anchor or hauling system.
Down,Means something orsomebody is moving down or requires to be moved down.Onhorizontal systems it would indicate movement of the loadaway from the anchor or hauling system. It has an oppositefield of use to Up.Used at the endof a climb, rappel,raise, or lower to communicate that one isoff the rope, has found a safe position, and that the rope can beused by the next person or for the next operation.A general emergency call.Its use may indicate different actions depending upon thesystem in use at the time. For example,during a rappel,itwould include the need for a bottom belay.The signal alertsothers to come to the aid and, if necessary,work quickly andsafely to effect a rescue.A“Short Whistle Blastis defined as 1 s in duration.Where the signal calls for multiple blasts there shall be a l-sinterval between each blast.A“Long Whistle Blast” is 3 s induration.A“Continuous Blast” indicating the need for helpshould be long enough to attract attention and be differentiatedfrom any other signal,at least 10 s if possible.These same patterns could be used with any audiblesignaling device such as a compressed gas horn,vehicle horn,and so forth.ASTM F1768 pdf download.

Download infomation Go to download
Note: Can you help me share this website on your Facebook or others? Many thanks!
AS ISO ASTM 52904:2021 pdf free Free AS Standards

AS ISO ASTM 52904:2021 pdf free

AS ISO ASTM 52904:2021 pdf free.Additive manufacturing - Process characteristics and performance - Practice for metal powder bed fusion process to meet critical applications. 5 Feedstock and Powder Batches 5.1 The material supplier shall package the powder...
Get More
AS ISO/ASTM 52901:2021 pdf free Free AS Standards

AS ISO/ASTM 52901:2021 pdf free

AS ISO ASTM 52901:2021 pdf free.Additive manufacturing - General principles - Requirements for purchased AM parts. 4.3.3 Tolerances The tolerances shall be specified (e.g. general tolerances, see ISO 2768-1 and ISO 2768-2, and/or specific, ISO 1101), including...
Get More
AS 2455.2:2019 pdf free download Free ASTM Standards

AS 2455.2:2019 pdf free download

AS 2455.2:2019 pdf free download.Textile floor coverings - Installation practice Part 2: Carpet tiles. 4 Pre-laying requirements 4.1 General Pre-laying requirements shall be in accordance with AS 2455.1. Prior to commencement, it should be ascertained that carpet...
Get More


Anonymous netizen Fill in information