ASTM E937/E937M-93(2020) pdf download

10-05-2020 comment

ASTM E937/E937M-93(2020) pdf free download.Standard Test Method for Corrosion of Steel by Sprayed Fire-Resistive Material (SFRM) Applied to Structural Members.
ASTM E937/E937M-93(2020) covers a procedure for measuring the corrosion to steel induced by sprayed fire-resistive material.
In this test method replicate panels of bare, shop-coated, and galvanized steel are sprayed with SFRM and subjected to room temperature and humidity conditions and to 240 h of conditioning in a temperature- and humidity-controlled chamber. Corrosion induced under these conditions is determined by weight loss3 of the sheets as related to sheets not so conditioned.
ASTM E937/E937M-93(2020) evaluates the relative corrosion of steel induced by SFRM and determines whether the presence of SFRM increases, decreases, or has no effect on the corrosion characteristics of steel.
This test method requires the application of SFRM in accordance with manufacturer’s published instructions. The apparatus, materials, and procedures used to apply the SFRM shall be representative of application in the field.
Report information on the steel including the grade; the nature of the shop coating, including the product name and manufacturer; the measured dry film thickness; and the elapsed time (number of days or hours) between application of shop coating and application of SFRM.

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