SPRAY FIREPROOFlNG—ASTM STANDARDS. ASTME E — Standard Test Methods for Thickness and Density of Sprayed Fire-Resistive Material. ASTM-Epdf – Download as PDF File .pdf), Text File .txt) or read online. ASTM E Uploaded by chankawai Standard Test Methods for Thickness and Density of Sprayed Fire-Resistive Material (SFRM) Applied to Structural.

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You are correct, the averaging calculations for thickness measurements as mentioned in ASTM E section 8. Thickness measurements are concerned with the application of the SFRM, while the density measurements pertain to the product itself.

From a practical viewpoint, the use of actual measurements for density calculations prevents “false high” density calculations. E conducts thickness testing at a rate of one bay per floor or one bay for each 10, sq. However, this section does note that 12 thickness measurements are to be taken, and no statement is made regarding adjusting the average of the 12 measurements.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. While the wording in the manual seemed confusing, an appendix clarified that 12 thickness measurements should be taken.

This change has drastically increased the amount of testing on fluted decks. Also I would encourage you and your team to use the displacement method for qstm density, Section 8. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. With such a conflict we refer to IBC Work Item s – proposed revisions of this standard.


As a laboratory we believe the measurements should be actual not allowables. Since you suspect an improper application, it would be prudent to test the SFRM in the standard method and to also cut around the cap and test just for adhesiveness and report the findings to the design professional. On the other hand, IBC Consult the rating criteria.

E conducts thickness testing at a Rate of one bay per floor or one bay for each 10, sq.

Testing Engineers – Case Studies

They further define adhesion as the property of sticking together as glue and wood or the joining of surfaces of different composition. When measuring density, IBC refers us to section 8. Bond Strength of Fireproofing. During a recent project we found the Sprayed Fire-Resistive Material applied to the steel substrate to sound hollow upon surface tapping.

Combining values from the asstm systems may result in non-conformance with the standard. When this question was asked of Luke Woods of W. These include sprayed fiber and cementitious types.

For every sq. If we go back to the IBC It makes no reference to Note 4 in using a correction formula. It asrm some of the measuring and sampling variables that are inherent with other methods.


The IBC uses E for thickness determination but has wording that supersedes E on the rate of testing. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM E605/E605M – 93(2015)E1

So, when writing an SOP for performing thickness determination the following could be adopted: For SFRM to provide the required level of protection both the minimum average thickness and the density requirements must be met.

Link to Active This link will always route to the current Active version of the standard. With such a significant discrepancy between the two can you explain the right procedure? Historical Version s – view previous versions of standard.

However the user should be cautious as to the extent of the reference. It is based on the same design concept of the original tested assembly but it is up to the design professional to determine if the increase in thickness compensates for the low density of the SFRM. A sample Operating Procedure follows: This method measures the volume of the material without the need for thickness e065 area measurements.