forensic testing | Warren Forensics

Tag Archive: forensic testing

P&ID’s, If You Please – Piping and Instrumentation Diagrams Explained
November 17, 2020 4:26 pm Leave a Comment
When investigating an industrial incident, one piece of information I always ask for is the relevant P&ID’s for the process. P&ID stands for Piping and Instrumentation Diagram and is defined as “A schematic diagram of the relationship between instruments, controllers, piping, and system equipment.” A set of P&ID’s for an entire facility allows you to trace the entire manufacturing process from raw material unloading to finished product loadout, including utilities like steam, water, fuel, and air. That’s great information to have, but isn’t especially useful (more…)
What You May Not Know About Using a Concrete Test Hammer
September 24, 2020 3:42 pm Leave a Comment
When assessing potential problems in concrete structures, consider a non-destructive test using the concrete test hammer, AKA “rebound hammer,” before investing a lot of time and money needlessly replacing or destructively testing the concrete structure. The use of rebound hammer tests should be considered before you or your client decide to drill multiple core samples. Large areas of the concrete structure suspected of having potential strength problems can be tested quickly with a rebound hammer. Analysis of those results can narrow down specific areas for more rigorous testing. (more…)
Construction Techniques to Prevent Water Penetration at Windows
June 26, 2020 3:57 pm Leave a Comment
Windows, and their interface with the exterior walls, are an important part of a building’s envelope that resists the intrusion of water. Most builders take many precautions to protect a house from water damage. One of the most important factors in keeping the water out is the installation of window flashing, a thin material that prevents water from seeping in around a window. (more…)
Shedding Some Light on Fluorescent Light Fixture Fires
May 28, 2020 3:06 pm Leave a Comment
Lighting systems in buildings and other structures have undergone changes over the years. Many of these changes have occurred as manufacturers have developed more efficient lighting methods. Lighting loads can represent the largest category of electrical load in many buildings, thus improved lighting efficiency may significantly lower your power bill and can lengthen time between lamp changes. (more…)
When the Walls Come Tumbling Down… Retaining Wall Basics
October 30, 2019 11:45 am Leave a Comment
A wall is really boring until it fails. A retaining wall is supposed to hold back soil to either support a structure or keep a space clear. When it fails, both of those roles are compromised. A retaining wall does not have to collapse to fail. In fact, a failure is perhaps better defined as when the wall does not perform as expected. (more…)
Testing As Part of Gas Appliance Incident Investigation
April 22, 2019 2:09 pm Leave a Comment
Equipment and appliances supplied with fuel gases like natural gas, propane and butane are a common and convenient part of most of our lives. Such devices as gas grills and ranges, ovens, furnaces, space heaters and water heaters usually perform without incident. However, when they malfunction the potential for incidents such as fires and explosions, carbon monoxide (CO) poisoning and burn injuries may occur. These incidents may be due to design and manufacturing defects in the product, or improper installation or operation of the device.

(more…)
Danger Lurking in the Hot Tub
March 15, 2019 10:11 am Leave a Comment
Several dangers involving the use of a hot tub (spa) may readily come to mind, such as the risk of shock or electrocution, or the risk of drowning for unsupervised young children. Not so readily apparent is the effect of overheating the human body, or “hyperthermia”.

Some individuals are more susceptible to the effects of hyperthermia, including the elderly, young children, and those in poor health. The effects of hyperthermia, or overheating of the human body, cause direct responses such as headache, nausea, heat exhaustion, increased cardiac output, lethargy, confusion, heat stroke and unconsciousness. The onset of hyperthermia is defined as being at 99.5° F; if the body temperature reaches 104° F, a life-threatening medical emergency exists. (more…)
Defective Vertical Baler Causes Serious Crush Injury to Operator’s Arm
January 29, 2019 5:08 pm Leave a Comment
I recently worked on an interesting case involving a box baler. An employee of a butcher shop put some empty cardboard boxes in a vertical box baler and pushed the control switch to compact the boxes. After the 30 by 60 inch platen weighing 851 pounds returned to its raised position, the employee reached into the open space above the bottom door on the baler and began to clear cardboard from the bale tie slots in the bottom of the raised platen. Suddenly, and without warning, the steel pin attaching the platen to the raised hydraulic cylinder rod failed. The heavy steel platen fell and crushed his arm which was outstretched over the baler door into the compaction space.

(more…)
Not Your Father’s House Fire
January 28, 2019 3:51 pm Leave a Comment
Remember the good old days when our homes were built with only lumber, dry-wall, and roofing? Me neither. However, we talk about ‘modern’ construction materials like this is a new phenomenon. The truth is ‘modern’ construction materials started sneaking into homes over fifty years ago. It’s not only construction materials that have changed: a century ago, we furnished our houses with wood, cloth, metal, and glass. Today, it’s plastics, foams, and coatings.

(more…)
Water Damage from Leaking Shower Stalls
January 24, 2018 1:53 pm Leave a Comment
Have you ever had to have a leaking shower pan for a tiled shower stall replaced, only to have a recurrence a few years later? If so, it is likely that it was not properly built and/or repaired. In most installations, the shower stall is constructed with an underlying one-piece flexible membrane of PVC that is attached to the wall studs before the backer board and wall tile is installed. No nails or screws should penetrate the membrane below the level of the curb of the shower stall. The only opening in the membrane below the curb must be the hole for the shower drain to connect to the house plumbing. The shower drain is designed to allow water on top of the membrane to flow into the drain via weep holes for that purpose. (more…)

Type ofLoss

Not sure what you're looking for?
Browse All

Select Loss Category

Select Sub-Category (choose category first)

View Now