AQSS provides cost effective and proactive expediting service to the clients. We provide efficient technical services for CE Marking and PED certification.

1. Glimpse on PED- Pressure Equipment Directive
The Pressure Equipment Directive was formulated to harmonize the conflicting European laws regarding
the design, manufacture, testing, conformity assessment, and assemblies of pressure equipment of the
various European Union states. It provides for a maximum allowable pressure greater than 0.5 bars for
each equipment to get passed through the inspection. This also sets an administrative procedural
requirement for the conformity assessment of pressure equipment, for the free placing on the European
market without local legislative barriers. The manufacturer themselves can either carry out inspections
or can rely on a noted body to get exceptional best Inspection Services to be rest assured about the
quality and accuracy of the product.
The PED Directive defines a number of rules for pressure equipment, based on the potential hazard
areas coming along with their application. Generally, the hazard level or percentage is determined on
the basis of stored energy in the container and the nature of the contained fluid in it. A well noted body
carries out effective Inspection Services and assures that the vessel can be conceded for the PED
Certification to be placed on the European market.
The PED Certification is being regulated on several items such as:
Vessels
Pressurized storage containers
Heat exchangers
Steam generators
Boilers
Industrial piping
Safety devices
Pressure Accessories
The PED requirement criteria for compliance are however very extensive and complex, with four
equipment hazard categories in general and several other alternative conformity Inspection Services

2. procedures for each. To meet the following requirements and to be able to apply and display the
certification, the majority of pressure equipment items and assemblies have to be approved by a
notified body before being placed on the market. In some cases manufacturers will be required to carry
out Inspection Services strictly within the guidelines imposed by these standards, whereas in other
circumstances application of standards are not that compulsory.
Apparently, the aspects of the design, production and testing of the various pressure equipments is
subjected to a large number of standards, many of which are still in the process of being produced by
the legislative. These standards cover all aspects of equipment design and production, like dimensions,
materials, welding and test methods. These standards play a prominent role in assuring the quality of
the product to both the customers and as well the manufacturer.
As a manufacturer, one however has many responsibilities and details to consider during the production
of pressure equipments and also during their testing. The PED Certification is an assurance mark that
provides agreement with safety requirements on pressure equipments like following procedures:
Analyses of hazards
Material selection
Calculations for capacity
Calculations for security
Calculations for operation
Manufacturing & welding process
CE marking
However, inspections and conformity procedures are different for each category, ranging from self
certification for the lowest hazard category up to full ISO 9001 Inspection Services by a notified body.
The assessment procedures come in different modular structures and manufacture has the choice to
select a test based upon their requirement. Anyhow, for certain processes, it is important to have a
qualified personnel and appropriate procedures in place and to execute the work accordingly. With PED
Certification, the actual requirements for any piece of equipment under the directive are however very
complex and dependent on not only the design but also on the type of user, the intended use and
sometimes even on the sales literature. Getting a product approved by certification allows full freedom
to be placed in the market and get returns without any hassle.
You can trust on ISO 9001 certified company for all your assurance and conformity needs. For details see
http://www.aqss-usa.com/expediting-services.asp