ANSI/ALI A14.4-2009 American National Standard (ASC) Safety - TopicsExpress

ANSI/ALI A14.4-2009 American National Standard (ASC) Safety Requirements for Job Made Wooden Ladders American Ladder Institute / 10-Mar-2009 / 26 pages This safety standard prescribes minimum requirements and recommendations for the construction, design, installation, and use of job-made wooden ladders in order to minimize personal injuries. This standard does not cover portable manufactured or portable job-made ladders, permanent fixed ladders, or mobile-equipment ladders. The purpose of this standard is to provide reasonable safety for life and limb during any construction or demolition operation where conditions are not practical or permit the erection of temporary stairs or ramps. This standard provides a guide for compliance with minimum required specifications when job-made wooden ladders are being constructed for temporary access on construction and demolition operations. if you want to know more about our technology.you can go our blog michaelyangcode.livejournal

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