Corvault – solutions for aggressive liquids & corrosives

Corvault logo white

Manufactured by Chemstore, Corvault provides a safe and compliant solution for the storage of your complete range of aggressive liquids and corrosive materials.

The Corvault range scales from entry level reach in storage solutions for small drums and modular walk-in units for IBC’s and larger containers right up to bespoke design Warehouse for housing corrosives on site.

Backed by a 10 year structural guarantee each Corvault system may be combined with an extensive range of optional accessories to suit individual requirements and specific applications.


Key Features:

  • Full height ventilated louvers to ensure maximum airflow inside the store
  • Finished with 2 pack anti corrosive polyurethane paint system designed to resist chemical attack.
  • Innovative design with tested and certified polyethylene sumps for optimal corrosion resistance.
  • Full width spillage collection sumps.
  • Robust fixed or modular shelving.
  • 10 Year Structural Guarantee.
  • Powered ventilation, lighting and heating options.
  • Compact walk in stores and larger solutions for palletised loads, large containers and IBC’s
  • Reference Gallery for example Corvault units manufactured by Chemstore.
PES Stores – Pesticides

The Chemstore pesticide stores are designed for storing any agrochemical such as plant protection products, animal remedies or biocides. Our new pesticide stores are fully compliant with IASIS (Irish Agricultural Supply Industry Standards) and the HSE Guidance Document – Storing pesticides for farmers and other professional users

You are ensured that the storage for your pesticides are designed and constructed in compliance with relevant statutory requirements and are managed and operated to achieve a high level of protection for workers and for the environment.

The Chemstore PES range can be equipped with required safety & hazard labels for your site on request.


  • Fully bunded. Capacities in excess of EPA & EA recommendations
  • Range of standard sizes as seen below.
  • Can be manufactured to customer dimensions
  • Delivery to site fully assembled.
  • Fitted with forklift channels and roof-fixed crane lifting points to allow for easy unloading and relocation if required.
  • Fully secure
  • Fixed or adjustable shelving
  • Choice of finishes, colour options
  • Fully ventilated, optional electrical extraction
  • Single skin or insulated construction
  • Optional lighting
Extreme increase in undeclared hazardous materials

The German transportation company Hapag-Lloyd has recently announced that in 2015 they saw an immense 65% increase in improperly declared hazardous materials that were carried by cargo. The announcement has been made possible due to Hapag-Lloyd’s Watchdog IT system, which analyses cargo data and flags up anything suspicious. This special safety software was industrialised by the company’s ocean carriers’ information technology and dangerous goods experts. It has been key in identifying dangerous goods, as it continuously checks for potentially hazardous materials.

Hapag-Lloyd announced that in 2015 they pin-pointed 4314 cases of incorrectly declared cargo. This is a 65% increase from 2014. It is believed that their dangerous goods specialists examined more than 236,000 suspicious cases which came to the attention of the firm’s safety software in 2015. This is a 46% growth from the previous year.

Why exactly has this increase occurred?
This swift increase in incorrectly declared hazardous materials is primarily down to two factors. One of the key reasons is the Tianjin explosion in China, which took place at a warehouse at the port which held hazardous chemicals. It’s widely reported that these chemicals were improperly stored, which caused the blast and left 173 people dead. Subsequently security measures were greatly tightened at the warehouse. The dangerous goods guidelines were tightened tremendously, and even prohibited hazardous goods completely in some cases. Rainer Horn, a spokesman from Hapag Lloyd, clarified that: “Many Chinese ports banned dangerous goods cargo partly or wholly after the explosions. So shippers didn’t declare their dangerous goods cargo hoping that they could get the cargo through.” Despite the fact that some ports have restrictions and rules in place which prohibit dangerous goods, some shippers are deliberately not declaring goods so that they can use all ports and carriers.

It’s believed that the other major reason for this increase in undeclared harmful goods is Hapag-Lloyds merger with CSAV’s container business. This merger boosted their overall business, and as a result increased the overall number of undeclared hazardous materials.

So what are the dangers involved with this increase?
The Tianjin blast highlights the importance of both appropriate storage and declaration of hazardous goods. Dangerous goods which are not declared hold a massive threat. In a statement Hapag-Lloyd described how: “Dangerous goods that are declared imprecisely, incorrectly or not at all have the potential to pose a major risk to crews, ships, the environment and other cargo on board.” It is extremely important for the crew members to know exactly what is inside the containers, so that they are able to carry out the correct handling procedures.

It’s clear from Hapag-Lloyd’s recent announcements about undeclared hazardous materials that there is a pressing need to improve health and safety legislation. Ken Rohlmann, head of the company’s dangerous goods department, sums up the danger of incorrectly declared dangerous goods in his statement: “If you consider that a single incorrectly declared container is enough to cause a disaster, the devastating potential of every single incorrect or non-declaration becomes clear.”

3 steps for selecting a hazardous material storage solution provider

Hazardous materials, whether in a raw state or the finished product, are capable of producing a wide range of physical damage – from fires and explosions to health problems and, in some cases, even death.

So when you’re choosing a hazardous storage solution provider, it’s essential you do your research to ensure you find a provider that has the right solution for your needs, is experienced in dealing with your hazardous goods, is fully trained and aware of the latest legislation to safeguard your compliance. To help you, we’ve put together some tips to help you start the selection process:

1. Identify and quantify hazardous materials stored on your site
Any chemical that has been supplied to your site would have been issued with a safety data sheet – it’s the law. Use these sheets to start classifying any hazardous materials stored and processed on your site. Classifications:

  • Flammable
  • Corrosive
  • Toxic
  • Oxidiser
  • Harmful
  • Dangerous for aquatic life
  • Explosive
  • Compressed gas
  • Health hazard

Alongside classification, you’ll also need to quantify the amount you’re storing on site – do this for each type of chemical. Then, record the number of different sizes and types of containers that hold your hazardous materials.

2. Identify the application and necessity of your hazardous materials
This is a necessary step to identify the exact purpose of storing hazardous materials on your site. You need to question whether it is really necessary for each material to be housed on your site. And where possible, you should investigate whether you can substitute a hazardous material for a non-hazardous one. Secondary risks can also become apparent when identifying each application. For example, in the case of dispensing a flammable chemical on site the risk of static charge build up will then need to be considered. Application categories include:

  • Cleaning
  • Mixing
  • Dispensing
  • Fuel
  • Testing

3. Protect your employees and prove your compliance
The safe handling and storage of hazardous materials is one of the most important tasks for the protection of the health of employees. The employer has many responsibilities and must be aware of the potential hazards different materials contain.

It’s critical that you request information on relevant government legislation and regulations for the safe storage of your hazardous materials on site.  The HSE and other government organisations are there to help ensure that environmental health and safety risks are minimised as far as reasonably practicable in industrial organisations, so don’t be afraid to ask what you need to do to become compliant.

One of Chemstore’s team can talk you through the necessary steps and provide expert advice to ensure you are compliant.

Contact Chemstore
One of our engineers can issue you with a full site proposal with the relevant advice, products and services to enable your site compliance for the safe storage of hazardous materials.

The Chemstore team provides a full after sale service to inspect and maintain all products to ensure the highest standards are upheld.

Request your free site assessment and expert hazardous material storage solutions from an experienced Chemstore engineer today. Call 020 8704 1807 or email us.

Optimum Temperature Chemical Storage

Ensuring your chemicals are at the optimum temperature is one of the most essential aspects of safe chemical storage. This is a feature which becomes particularly prominent during the cold winter and warm summer months. If the temperature of a chemical is allowed to go above or below the assigned temperature range according to the chemical manufacturer, as shown by the MSDS (material safety data sheet), it will be adversely affected and in extreme cases may even cause chemicals to become volatile and potentially dangerous. If a chemical is allowed to drop below its freezing point it will expand, potentially causing the container to rupture leading to a hazardous leak.

Another potential outcome of allowing your chemical to fall to a low temperature is that it may spoil or suffer a noticeable drop in quality which can directly affect your production process. The viscosity of a liquid is directly related to its ambient temperature, decreasing with a drop in the temperature, which may cause the chemical to become unusable, and increasing at higher temperatures, which would cause in the case of a spill cause it to spread further than otherwise and increase the danger associated.

Acetic acid, for example, has a freezing point of approximately 17˚C and can freeze in an unheated store. As it freezes, it expands and in extreme cases may cause a fissure in the container creating a potentially dangerous scenario.It is also essential to ensure that your stored chemicals are not allowed to exceed their stated safety temperature maximum.

Flammable liquids are defined as such if they have a flashpoint below 60˚C. If the temperature of a liquid is allowed to surpass the stated flashpoint it will begin to give off vapour in a sufficient quantity to form a combustible mixture with the air and create a potentially explosive environment.

It is therefore recommended that all flammable liquids be stored in a cool dry place away from sources of ignition and heat. During the summer months it would not be unusual for the temperature within an unventilated chemical store in direct sunlight to rise to this dangerous level.

A pyrophoric material for example is defined as a liquid, solid, or gas that will ignite spontaneously in air at a temperature of 54.4 ˚C or below. This group of chemicals are amongst the most dangerous type of material to store due to their tendency towards spontaneous ignition and must be kept in a temperature controlled store to prevent this.

This is why it is essential to follow the chemical manufacturer’s recommendations in terms of temperature specific storage or consult with an expert such as Chemstore when dealing with unfamiliar chemicals.
There is a full range of temperature control products designed to ensure that your chemicals are kept within their precise temperature ranges despite the ever changing external temperatures.


Chemical Awareness & Storage

Many companies use hazardous chemicals in their production, manufacturing and maintenance processes.  These companies must be sure to implement control measures to reduce the risk of harm to employees.

First of all, wherever possible the need for the hazardous chemical should be removed from the process.  If this is not practical then it may be possible to source a less hazardous alternative.

At this stage of selecting a new product, a thorough analysis of the material safety data sheet (SDS) is required, now although the quality of SDS has improved greatly in recent years, they may not be 100% accurate.  The manufacturer may have changed the ingredients of a chemical without updating the SDS and of course there is room for human error.

It is advisable to conduct a controlled trial of the product to ensure that it does not introduce any new hazards and does the job that it is supposed to.  This is where your operatives are worth their weight in gold as they alone can comment on the impact this change will have on their day to day productivity.  Safety representatives, manager, engineers should also be consulted to ensure no oversights are made.

Staff who are required to work with, or are exposed to the hazardous chemical should receive training on how to work with the product safely and should know the risk factors involved in doing so.  Emergency response teams must be trained and on standby to deal with any problems as they occur.  Their standard procedures must be supported by emergency response plans which should be updated through regular testing of simulated incident.

What is often forgotten in daily handling is the improper storage of product or material. Hazardous materials are therefore always a current topic for every laboratory. Apart from the proper handling strict storage regulations must be observed. The current storage cabinets provide local storage close to the workplace similar to cabinets shown below.


The final resort in controlling hazardous chemicals is the use of personal protective equipment (PPE) such as protective gloves, goggles and ventilation masks to shield the wearer from the ill effects of any chemicals they are working with.

If you require information on Training, PPE and our full range of EN14470-1 compliant cabinets please do not hesitate to call any of our Sales Team on  020 8 704 1807.

A Brief Guide to Acid Storage

The following acts as a brief reference guide to your acid storage. 

1. Ascertain the nature of the acids:

  • Inorganic also known as mineral, the most common are Hydrochloric, Sulphuric and Nitric acids.
  • Organic acids for example, Acetic acid being the most common.
  • Flammable acid, the only common example is Acetic acid.

2. Acids are frequently supplied as aqueous solutions. For example, the higher the concentration of an acid the greater the potential of fumes, which in turn can be very corrosive.

3. Always refer to the Material Safety Data Sheet which gives directions regarding storage and handling advice. Acids must be separated from other chemical types such as bases.

4. Having established the nature and quantity of acids present, and measured available storage space, you are now in a position to recommend specific asecos cabinets.

  • Where acids are mildly corrosive the CS Line can be considered, but as they contain some metal components corrosion resistance is limited.
  • For stronger acids use the SL Line which is highly recommended.
  • In both cases extraction is recommended. Where segregation is required there are a number of products which may be considered such as the SL, CS or K Lines.

5. Check the client requirements for interior furniture within the cabinet, this depends on the size and number of containers being stored. With respect to storing acids if possible always recommend PE coated shelves or plastic pull out drawers if available, it helps reduce the risk of corrosion to those components.

6. We advise that in all cases cabinets are to be ventilated where acids are stored, acidic fumes are corrosive, so for example non-metallic components are to be used in the extraction hosing. In 2014 asecos are releasing a recirculating UFA extractor for acid fumes as an option.

7. Establish where the cabinet is to be delivered to, either to point of use to behind first door (goods-in).

Acid storage 1

Acid storage 2

A Brief Guide To Gas Cylinder Storage

The following article outlines the recommended steps to take when deciding on which type of gas cylinder storage is most suitable for your needs. 

  1. If there is sufficient space externally for secure storage, which is the preferred option of the HSE and BCGA, then our G-OD outdoors range can be considered as an alternative to external cages.
  2. If there is no sufficient external space, then explain that the second option to be considered is a dedicated fire rated and ventilated storeroom to house the minimum number of cylinders needed for any process.
  3. If the customer cannot conform or agree to either of the first two options, we can introduce asecos cabinets which are manufactured according to BS EN 14470-2. Also explain that the cabinets are available in 30 minute or 90 minutes fire resistance and must be ventilated without exception.
  4. Finally, that metal pipe work (stainless steel is the preferred choice due to its low thermal conductivity) or electric cable can be fed through the roof without compromising the fire rating. asecos gas cylinder cabinets are predominantly used for gas cylinders in use and indoors.
  5. For example when very expensive highly purified gases are used, using an asecos cabinet will minimize the chances of the rapid degradation of the gas due to local storage and using shorter pipe lead throughs. This type of gas delivered by pipework from central stores may rapidly degrade the quality of the gas.
  6. Establish the number of cylinders, volumes, sizes and the nature of the gas wishing to be stored. If toxic or flammable gases are being used, recommend 90 minutes fire resistance and a ventilation rate of air change at 120 cabinet volumes per hour with an alarm. With inert and non –toxic gases the customer may consider 30 minutes with reduced extraction rates and no alarm. Note that asphyxiation can still occur.
  7. Check that the customer has extraction facilities available on-site. Remember this is mandatory for BS EN 14470-2 cabinets and it would have to be installed by a separate business if not present.
  8. Check that there is space for any recommended cabinet(s) with the doors fully open. Check that the floor can take the weight of the cabinet including cylinders. All weights and volumes of the cabinets are specified in the asecos catalogue and on the asecos website.
  9. Check that delivery is possible to the point of use. If the customer is considering delivery behind first door or entrance point, advise him how heavy the cabinets are.



Codes of Practice, Guidance Notes and recommendations from UK authorities are generally the minimum requirements for complying with Health and Safety law. An end-user is welcome to use his own methods, but a court will find fault if an accident occurs and these have been established as being insufficient.

Are You Choosing the Correct Store?

Since 1993 we have been designing & building a comprehensive range of stores for all types of storage and dispensing solutions for Hazardous Materials. We have recently been made aware that there are numerous products on the market which are not compliant or fit for purpose.

Chemstore through obtaining EN ISO 9001:2008 are Ireland’s only manufacturer of Hazardous Material Stores and can offer full conformity of its products through the following:

  • Internal production control.
  • Production quality assurance.
  • Product quality assurance.
  • Product verification.
  • Unit verification.
  • Full quality assurance.


The pictures below show findings following Free Site Audits conducted on 2 separate sites recently.

fire proof pallet storePictured left is an 8 pallet store which was built around standard warehouse pallet racking and using heavy Insulated paneling. The weight which was being exerted on the framework could not withstand the load bearing pressure and this led to the unit being blown over in the recent strong winds.





Pictured below is a standard 1000L IBC of hazardous material being stored with no bunding or warning to the danger of the product being stored.

IBC on pallett

Chemstore Compliant Solutions

Chemstore recommendations to the issues raised were to offer compliant stores to best meet the requirements of the customer. During assessment Chemstore assess the following main areas:

  • Product to be stored.
  • Quantity of product to be stored.
  • Hazardous class of the product.
  • Access to the product.

On review of these key points the following proposals were sent to our customers for review and implementation:

Below is an 8 Pallet Firevault. The framework is fully welded box section steel. The cladding used is a 1Hr fire rated panel. The bund is tested & certified with a capacity in excess of 110% of the largest container being stored. The twin sliding doors are running on a heavy duty henderson track system. The shelving is a parallel bar system which will accommodate both pallets and IBC’s. The vents and door seals are intumescent and are tested to 1Hr. The paint system is a 2 pack system which also provides corrosion resistance.

8 Pallet firevault | Fire Rated Storage

Pictured below is storage for a single IBC of hazardous material. The framework is fully welded box section steel with vandal proof steel cladding due to the location of the store. The bund of plastic construction is tested & certified with a capacity in excess of 110% of the largest container being stored. The twin hinged doors had openings of greater than 180° to easily load/unload the IBC. The shelving is a plastic grid decking which will accommodate both pallets and IBC’s. The paint system is a 2 pack system which also provides corrosion resistance.

ibc store | Bunded chemical storage


To ensure your compliance, Book a Free Site Assessment Online Today OR contact our Sales Team at:   or call 0208 704 1807

Transfer of Highly Flammable Material

Following numerous incidents in both Ireland and the UK a solvent company have been prosecuted following an unsafe decanting operation that led to a large fire which completely engulfed its premises.

Chemical safety storage

Workers were transferring highly flammable materials from a bulk container into a smaller vessel. They were filling the drum using a pipe from the container but the pipe was too short. This meant dropping the material from the pipe into the drum which is known as “Splash Filling”. This process is known to generate static electricity which is a potential ignition source.

The flash point of the material being dispensed is just 4°C so when the incident occurred on a hot summers day there would have been a flammable vapour over its surface.

The build up of static electricity within the drum is thought to have ignited the vapour and sparked a fire which spread to a number of other drums containing flammable & solvent material in the area. Some of these drums exploded.

There were a number of employees in the area at the time of the incident but all managed to escape following an Emergency Drill call from a supervisor present. The emergency services were called and on there arrival the blaze was described as an “Inferno”.

An investigation into the incident found that the splash fill method used was inappropriate and posed a clear risk that wasn’t properly assessed. Employee safety was also compromised by the fact the pipe used was not earthed and the incorrect PPE was being worn.

Following the hearing the inspector said “Companies working with dangerous substances must take extreme care at all times and in all aspects of their operations. That clearly didn’t happen on this occasion and it could have had far-reaching consequences.”

Chemstore offer a Free Site Survey to assess the onsite dangers in both dispensing and storage of flammable materials. We will report our findings and recommend the correct process and storage which includes Emergency Spill Response, Eearthing and Storage of Flammable & Solvent materials.

[Book Free Site Survey Today]