For easy disabled access. I've now got down to the level of the drains but I don't know whether to. The ground make up is encroaching. So that as you go out through some french doors the patio is at the same level. The purpose of the drainage channel is not only to act as a drain, but. The ACO would be about 75mm below DPC for most the run and drop into where the house guttering. I suspect when I take up the decking I might also find an air brick below finished level. DR804 ACO Drain Price List 5 of 5 (Spare Parts) 2022. Material specifications for DPC cavity trays in masonry. Wavin (98) Hepworth Clay Drainage (57) Manthorpe Underfloor Ventilator 3-5 Courses. aco | architecture across continents". We can live with 1 brick below dpc and the floors are set at dpc level. I recently hired a builder to add aco drain brickslot around my conservatory (patio slope is toward my house and water used to. My conclusions so far. ACO Channel Drain. Application of hardcores helps to save cost. Firstly, its below dpc level so its unlikely to cause a problem; that just tells you the damp proof course is doing its job. D. I know about the building regulations, but I wondered why, exactly, it would be risky to raise the patio above dpc level, given the the patio would end a few inches away from the wall and that there would be a plastic drainage channel set into the patio near the edge, so that rainwater would not run off the edge into. Patio level with dpc. . It is necessary to remove water from the structure as far as possible to prevent it from any further damages. In this circumstance, you should excavate to the level of walls and apply MB2K+. Country. Channels are. Patio will slope away from house and towards brick retaining wall (not timber any more). 13 Sep 2013. find out more. Secondly, if there are plumbing items in the vicinity its always worth getting them checked out. Load Class A–B. However, Document M of the Building Regulations requires level threshold access to be provided to all new buildings, and a growing number of homeowners like the idea of having a step-free level walkthrough from. Country. The external ground level should be a minimum of 150mm lower than DPC level. So we wanted to bring the patio to about 50mm below the DPC and was thinking of using an aco drain (or linear drain). This is level with the DPC and above air bricks. 6 Drives, paths and landscaping. The drain should be 150mm below dpc and ideally connected. 8. as cavity trays but are suitable for use as a DPC to prevent moisture rising from the ground. Casa Grande, AZ 85122. Our stormwater pits and storm drain grates ensure efficient drainage and. Click here for a calculator that estimates the quantities of each ingredient required to mix a C20-equivalent concrete. The DPC in the extension is the same level as the patio. Benefits and Drawbacks of a French Drain. ACO BuildLine is a range of drainage products designed to protect the building from stormwater at or around the building line from the ground level up to the roofline. You might find that your penetrating damp is being caused by water leaking from gutters and downpipes on the outside of your home, so examine them for cracks. either welded or lapped by 100mm minimum. (DPC), United States (U. 17 and 7. Load Class A-C. To get the total number of blocks from foundation to DPC becomes very simple. We understand the importance of better utilizing one of our planet's vital resource, water, and are working tirelessly to improve its utilization, collection and reuse. 9. The pavement is at about the same height as the dpc and starts at approximately 2. Install an external landing with a fall of between 1:40 and 1:60. 20 May 2022. 4. Kerbed edging and then a drop to the aco drain below DPC or a second grate level with driveway and above the DPC that sits on top of Aco. Can I build an Aco drain at the DPC level or must there be a drop between DPC and the Aco drain? If so, what is the minimum drop? Thanks. aco drain е най-богатата серия отводнителни улеи. The finished level is at or above DPC do I plan to fit Aco drains to take away any water near the house. - It's invasive, there's the gas supply and a cable running parallel to wall. MW Building Services. The sport drainage system allows events to continue even during inclement weather providing a safe arena for athletes and spectators. The period of. Tela kanala u kontinuiranom ili kaskadnom padu. Customer Sales 01753 944210. As long as the soil level immediately adjacent to your house is ~150mm below the DPC, there is no problem. Gradients. West Office Toll Free: 888-490-9552 825 W. Ground and paving levels are commonly asked to. We would fit an aco drainage system connected to a gulley or taken the water flow 5m away from the property. Head office: 134-140 Old Bathurst Road Emu Plains NSW 2750 Australia. 1) is it fine for a downpipe to go into the ACO (the ACO is connected into a gully) 2) how long can a run of ACO be? is there a point where it is too long to be effective?Welcome to ACO Drain and our extensive range of stormwater pits, the leading commercial surface drainage solution in Australia. Channel drainage is a key point in the management of surface water intercepting and conveying water to the next phase of it’s journey – a journey that has to be carefully and properly managed through cleaning, infiltration, attenuation and release. The 150mm min from dpc is. 4 (formerly Ch 4. The table below gives examples of floors area calculations at 500mm 2 /m 2. Navy Surface Ship Stability and Reserve Buoyancy 2. ding of the parapet should provide a clear drainage plane that redirects water away from the building and allows moisture in the form of vapor to escape from the interior. Login;The sub-base layer is often the main load-bearing layer of a pavement. Set of products to bring drainage design to the bathroom floor. 5 courses below DPC. Download. The. The french drain idea would be a "poor man's" soakaway but probably still sufficient given the size of your patio. This ACO BrickSlot HexDrain is a slot drain channel drainage system that seamlessly clips together and requires no additional fixings, with a 500mm mark for an easy-cutting guide. Kanal od polimer betona za linijsko odvodnjavanje sa pokrivnom rešetkom. Labour. Please note this house was built in 1810 and has no DPC. 1. ACO New Zealand participates in a variety of trade shows, seminars and other events. #4. 9 Curtain walling and cladding. 20 contain guidance for stepped cavity trays and flashings to masonry walls. If you require any assistance or more information please contact us by phone on 01603. This will be above the DPC, hence my plan is as follows: * Patio will slope away from house. I've just had an extension built and the floor level inside the extension is supposed to be the same level as the patio outside, with large folding doors between the two. Diagram B20 - Rising walls - changes in level 150-800mm. Mostly, the plinth height of 300mm to 450mm is adopted from the natural ground level. ACO in New Zealand was established in 2012 and utilizes the 24 ACO manufacturing facilities globally, including the Australian facility located in Sydney, New South Wales. The top of the deck needs to be at or below dpc level. String-line and laser levelACO is committed to designing and producing the best solutions to water management. Outside floor level too high so Im installing ACO channels, 2 vents had been cemented over so cleaned them out. Top. ; Weep holes are a small opening that is in. § 1724(a)(2) concerning experienceThe following are different types of DPC and their thickness used in construction, 1. 1' above my internal floor level (and above my DPC). Top. News. Service - Innovation 11. ACO Drain ® systems consist of factory manufactured modular channel units made from corrosion resistant Polycrete ® channels, together with grates from a variety of materials for all loading applications. AS101 DPC Channel. When rising wall is 215mm wide, change in level should be between 150mm and 860mm. - There is often a difference in brick type or brick appearance at the dpc. If one is to raise the ground level to above the original DPM, one is affectionately bridging the system to prevent rising dampness and in this case , lateral penetration of water . ACO DoorWay Drain comes complete with a two piece, corrosion resistant, Heelguard grating, suitable for pedestrian traffic. We offer a range of stainless steel gullies for shower, wetroom and bathroom applications. Uneven base is likely to cause damage to DPC. The external landing should be sufficiently large and level for ambulant disabled people and wheelchair users to be able to approach and, if necessary, turn to face the door. Although this would be above DPC level plastic or metal wouldn't absorb or transmit moisture. DPC Level in Construction:Discover domestic, commercial and civil-graded channel linear drainage solutions in A15, B125, C250, D400 & F900 loadings, for surface water drains from JDP. By contrast, the Defense Contract Audit Agency, or DCAA, has the primary responsibility for monitoring and auditing the accounting systems of contractors in doing their work for the DoD. I raised our patio by building a low wall 200mm out from the house (out of building blocks) to create a dry moat/French drain. Direct gutter downspouts away from the wall footings. ACO Hexdrain Channel Drain End Caps and Outlet Accessories Pack. we care for water. This will be flush with the patio slabs. Layout of Drain – Plan view. ACO Drain consists of cast polymer concrete bodies with either galvanized steel, stainless steel or cast iron wearing edges. Klasa opterećenja od A15 do D400. Extreme conditions. Our stormwater drainage products specialise in catering to various commercial applications, from industrial properties to large urban areas. ACO in New Zealand was established in 2012 and utilizes the 24 ACO manufacturing facilities globally, including the Australian facility located in Sydney, New South Wales. There are two steps down inside the house as you get to the back rooms and I feel fairly confident that the ground level at the back and sides need to be. The old paving was at the same level as the DPC, that's why I. ACO Drain is available in 2″, 4”, 8” and 12” internal widths, and are available with up to 130 ft (40m) of built-in continuous slope. S. Consequently, some underground drainage needs to be installed to. Once you have laid your concrete foundation, leave for 48 hours to dry, covering the trench if necessary to protect it from rain water. I cant increase the digging out to get the correct level due to retaining wall. After this has been done, remove the. french drains can look good but do need servicing every 3 to 5 years as they tend to block up, aco. Country. 2,235. 10 × (1÷80) = 10 × 0. So there is a slight step, probably about 20mm. 555 - 594A) Chapters. It is usually 2. By having the finished external ground level 150mm below dpc, air bricks are usually at least 75mm above the ground. cover constructed on a drain or sewer that permits the introduction of cleaning and inspection equipment from surface level, but does not provide access for personnel. ACO shall again notify the PCO with the reasons for the delay and a new target date. 1. Department of the Air Force, and Defense agencies and activities awarded a Tailored Task Order #47QRAC18F0003 to U. The average french drains cost per foot is between £35. This is the second page of a three page case study following the installation of an Aco Drive Drain to a residential driveway. Country. What is the best way to stop the 12 course etc showing damp and salts . Filling sand isIf the grate lays on the (deliberately) sloped drain channel, then at one end it will be flush with the existing ground level, and at the other end it will be a centimetre or so below the ground level (assuming 1/200 fall, 2m length of drain). 2. To the rear of my 1930s property, the brickwork below and around the slate DPC is very weathered, damaged and parts have moss growing on it. I have been advised that running an aco drainage channel along the wall of the house would be sufficient. However this means we. French Drains – How They Work. ACO Multiline. An accessible or level threshold consists of three principal elements: 1. 00 incl VAT. It will stop the water collecting around the house above the DPC. Southeast OfficeDPC Full Form. Title XIII - COMMERCE (Ch. And then paint 150mm above the finished patio level. ACO Systems and Solutions Private Limited Third Floor, 627/4, 36B, II Phase, 60 Feet Road, Near NTTF, Chokkasandra, Peenya Bangalore - 560 058 Karnataka, India. Up d both ends ensure water cannot enter the cavity and is safely diverted on to the roof covering. Dead Level P Trench Drain; Dead Level D Trench Drain; BarryCraft Grates More; Light Duty 5300 Series; Standard Trench Drain Grates 1" to 12" Wide; Large Trench Drain Grates 13" to 51" Wide; More Replacement Grates;. Open end cap Ø32 can be installed in 5 different positions; laterla or head position. The DPC in the extension is the same level as the patio. 12. In this video I show you how to connect an Aco CHANNEL to a 90 degree 4inch surface & rain water pipe to take away any surface water from a pathway, driveway. 28 Terminals; 6. com. This is level with the DPC and above air bricks. Green,. Access level 20 1 Diagram 2 – Plot gradient te: Where there is a risk of people falling 600mm or more, guarding will be required in accordance with Approved Document per Part K For longer ramps a 100mm upstand is recomended Level landings 1200mm clear 1200mm clear 1200mm clear 900mm min 10. N. #3. Manthorpe G965 Dual Extended Telescopic Floor Vent. £47. In London in the year 1975, the DPC or damp proof course became mandatory. ACO MultiDrain M100D - 135mm x 150mm x 1000mm. Step 1: Prepare the area for your drain. The patio slops towards the back of the house and he installed a drainage channel that goes along the back wall to an existing drain (laid in July 2019). 1 Feb 2017. The front of the house is fine with a surface which slopes downwards away from the house. If I were being neighbourly, I might agree to put in a french drain where the gravel sits lower than their internal floor level but I would not be paying for it. 1 told us we need to lower the patio while the other has suggested raising the patio to dpc line and putting in an aco drain against the house!N. Internal or external renders / plasters overlapping the DPC; External ground levels being raised above the. - Kingspan styrozone H350R below the DPC fixed to the wall all the way to the foundations. and putting in an aco draininstagram mark. £39. DPCs should be: positioned a minimum of 150mm above external finished ground or paving level. Rising damp is the effect of water rising from the ground into property. The dpc height in the new extension is 12 courses high from ground level at the lowest point of the driveway . The render above is darker - damp possibly?laying the floor tiles . The NHBC (National House Building Council) states that air bricks should ideally be placed at least 75mm above ground level. £15. Add to basket. The HexDrain channel should be installed 3-6mm lower than the surrounding surface finish. 2m³ of concrete will be required. Which is where i have run into some issues - namely drainage, DPC levels etc. London. 1 Solid concrete block walls in cement sand (1:5) mortar in steps 0 m3. Secondly, you could fit an aco channel drain against the house and pave up to them. 5. This is because the amount of cement and granite that would have been used for oversite concrete is reduced as stones or boulders are used to reduce the depth of void. help anyone thanks Raise level externally but have a gap adjacent to the wall with a gravel area at normal level (150 below dpc). 5) Raft, pile, pier and beam foundations. If the ground is flat or consists of soil, grass or any other soft material, the vents should be. Firstly we noticed the aco drain was not sealed at the joins so there was a gap which could have possibly been seeping water through the other side between aco drain and house. We also use ACO drains at the doorway or even along. Thankyou. Patio level with dpc We are wanting to raise our patio level with the french doors. Secondly, the stub stack. The insulation block below DPC is good also. . 44 £50. Installing a French drain can create better drainage in your yard by keeping water away from your house and foundation. C. As long as there is a reasonable distance between the top of. It is the first drain system for glazed doors which is integrated with the door itself, and offers a high performance drain with the same architectural quality covers. The external landing should be sufficiently large and level for ambulant disabled people and wheelchair users to be able to approach and, if necessary, turn to face the door. Intermediate Tray Left Hand Tray 2 Tray 3 Tray 1 A T ray ng Intra Weep Catchment Tray T h e fi r s tay ob u l- n. Permeable driveways are often more attractive than an expanse of concrete, adding value to the property. c) construction details. Step 1: Prepare the area for your drain. Technical Hotline 01753 944200. 8. (with a sizeable step (circa 175mm) into the house as it stands). 27 Flashings; 6. The width of your trench should also be wide enough to fit your French drain in, as well as at least 25mm either side. The door sill’s are also under the decking so my problems are:-. Collection Select your store. 2. 8. ACO stands for professional drainage, efficient cleaning, and the controlled discharge or reuse of water. Foreword. Render abutting exposed features, such as stone string courses or quoins, should be finished neatly without gaps. My plan was to lay a small path around the house and install ACO drainage channels next to the property but I've run into a bit of a problem. With the increasing usage of SuDS for drainage, the role of soakaways has never been more important, so their construction and they way in which they work needs to be better understood, which is the aim of this page. Get Quote. cutting back the path and fitting either an aco drain or french drain, but ensuring when you do this that the house brickwork below the path level is protected with no exposed bricks as you don't want to aim water at a weak point. The company has further locations in Phoenix, AZ, and Fort Mill, SC. With a range of accessories available from corner units to ø110mm vertical outlets, it is now possible to use as. Our patio is 50mm below dpc and causing an issue with ingress of water which has ruined our oak floor in the living room. I am thinking it would be better to slope it down slightly into an ACO drain up against the house. Some folk fill the gap with pebbles/stones but I leave it empty. This is level with the DPC and above air bricks. This page looks. Casa Grande, AZ 85122. The DPC in the extension is the same level as the patio. 31 Jul 2017. This will be linked to existing downpipe drains. ACO Infrastructure Surface drainage systems for roads, bridges and airports. n Parking houses and multi-level car parks ACO DRAIN® Deckline P Shallow channel for multi-level parking buildings and underground garages 4 2 3 1 1 - Channel 2 - Channel with outlet 3 - Channel end cap beginning of the channel 4 - Channel end cap end of a channel System componentsOur patio is level with the dpc but the paving is 150 mm from the wall and the gap is filled in with gravel. Load Class A-C. The surveyor suggests the following: Form a trench at the wall/path junction to a depth of 150mm below the physical damp proof course or internal floor level and fitting Aco drainage or similar, discharging into suitable drainage or back filling with pea gravel to allow drainage of. ACO Divisions Building Drainage . Add to basket. Channels are made from polymer concrete and are supplied complete with galvanized steel grates strong enough to withstand regular residential type car/4WD traffic. Dampworks LTD. West Office Toll Free: 888-490-9552 825 W. Yes, I would always go 3:1 below damp, but like you say: the original pug looks very lean, so I wasnt keen on. minimum sub-base thickness. 00 incl VAT. Brieanna Seefeld t explains it this way to her patients: “With the direct primary care model your insurance is used for what it is intended to cover. 30 Further information; 6. construction details. The inclusion of a level threshold from inside to outside effectively merges the internal and external. 037. Lawns and landscaping are an important part of your home’s aesthetics; they catch the eye and add curb appeal as well as providing a place for family relaxation and recreation. 037. A builder has been carrying out extension work on an individual's property. 5 cm thick with a ratio of rich cement concrete 1:1. 1m is 5 blocks. The top of the deck needs to be at or below dpc level. The door sill’s are also under the decking so my problems are:-. ACO has a number of drainage solutions specifically for tram and light-rail applications. retains the integrity of the dpc, provides integral weep and reduces the visual impact of the flashing. Rob Denness New Member. b) fit the Aco flush to the door which would need me to cut off the sill. Examples of this include: Debris in the wall cavity or subfloor void. West Office Toll Free: 888-490-9552 825 W. ACO offers a range of products for stormwater and waste water drainage. As mentioned putting stepped dpc in could u put that in then another dpc same height as the Blockwork dpc so in effect 2 external dpc many thanksDPC’s objective is to improve the cleaning service quality in public areas by progressively incorporating higher performance standards and service delivery for public places. The Guide is designed to supplement the American Dental Association’s CDT 2022: Current Procedure Codes by illustrating the. Dpc level with concrete patio We moved into our house in October. Drainage Channels are often called Linear Channels or Channel Drains and are an easy and effective way to clear surface water away from an area. Yes they should have installed the driveway 150mm below the damp course, if this was unfeasible then an aco drain should have been installed right around the house (where the dpc is compromised) and should of been connected to an existing gully for drainage. £65. Air bricks may be located either above or below DPC level and where possible on all sides of the building. Specifications General The catch basin shall be ACO Drain K1-621 Catch Basin, comprising of a top section, trash bucket and base as manufactured by ACO, Inc. The ACO PIPE ® push-fit pipe system made from stainless steel (both AISI 304 and 316) provides a modern alternative to plastic and zinc-coated pipes for water drainage and vacuum systems. I think you will have to either bodge it like the guy says or get the shovel out, you really want a 4" trap under the outlet to catch any silts then connect into the drain further down. Raise level externally but have a gap adjacent to the wall with a gravel area at normal level (150 below dpc). Fill the channel with pea gravel rather than. Aco Raindrain B125 1Mtr Channel and Cast-Iron Grating Ref 47001. 8. Perforated Pipe. S. Изберете от разнообразие от улеи с решетки, слотови или монолитни системи за всяко приложение и всички класове на натоварване. AS1010 Brickslot Drainage Channel. 2. Building reg's, stipulate, for new dwellings, level access must be provided at least 1 doorway. If you was installing storm drains I would recomend that you install them lower than you dpc level and tap in to the nearest underground waste pipe so the water has somewhere to go. Branches nationwide. In the walls and in foundation concrete horizontal and vertical DPC are provided. It will stop the water collecting around the house above the DPC. The products fall into five main drainage gully types: Fixed Height and Telescopic gully. damp damp external wall damp problems dpc drainage drainage ventilation patio Replies: 5; Forum: Building; Council regulation over the top? Hi I am doing an extension and had a trial hole dug for the foundations which was to 1. This bifolding door brand also comes with a low ramp-type threshold, also having a weather rating. Location. . Strip and trench fill foundations on level sites Published: 01 January 2016. And finally, for what it's worth, the back garden level is higher than the dpc by about 50 mm. Fernco – Adaptor Coupling. If the ground level is less than 150mm below dpc, air bricks can easily become blocked with debris and may. The level at the crown of the pipe. Mentor, OH 44060. ACO Shower Gullies Compact and attractively designed shower gullies . KG landscaping. High-Level MOCAS Processing. Dampworks LTD. Casa Grande, AZ 85122. Retail price. Aco drain to 110mm connectors are available, basically an end cap for the Aco drain with a 110mm spigot on it, which will mate with the boss on the Bottle gulley to join the channel drain to the gulley. the regs are FFL to be 150 below dpc or you could put in a French drain or Aco’s suffice nowadays. Beechcraft St Casa Grande, AZ 85122 Tel: 520-421-9988 Fax: 520-421-9899 08/24/15 9470 Pinecone Dr. Oldham. . KS100 has a grade 304 stainless steel edge rail for use where increased aesthetics or corrosion resistance is required. We think that the entire outside ground surface level is too high and has probably bridged the DPC. When we had the patio laid the builder put a French drain along the side of the house. Yes fitting an aco type drain channel around the conservatory should help with this. It’s no surprise then, that drainage issues such as standing water can be both upsetting and frustrating to deal with. I have been advised that running an aco drainage channel along the wall of the house would be sufficient. A minimum 225mm clear cavity below the DPC should be maintained. I work on new house builds ( have done for 30yrs now) and your situation is quite common. All horizontal drainage pipes, both above and below ground, should be laid to an adequate gradient. Email Address *. This will help drain away any water near the drain as well as water which hits the door or glass and drains through the frame. 1m / 0. LinkedIn;Acoustic Roll is not assigned a discrete thermal conductivity as it is produced to meet the min 10kg/m3 as per building regulations. The company offers various drainage systems specifically designed to manage stormwater runoff, protecting people from hazards and properties from potential damage. Beechcraft St. Building regs state that any path, patio, driveway must be 150mm below the dpc, in some circumstances where the lay of the land makes it almost impossible to achieve this, you can install an ACO drain along the wall to catch the water. The centralACO Shower Drain. Proizvodi se u šest nominalnih širina. Manufactured from recycled polypropylene, ACO DoorWay Drain eliminates water ponding at house entrances. 2. Check your existing physical damp proof course (DPC), which should sit 150mm above ground level (see Fig 1 above). One channel for any requirement with a range of grating designs to suit the. E2/AS1 also gives a minimum threshold height of 100 mm at an opening onto a waterproof deck. The DPC should be the full width of the partition. It was surrounded by shingle, gravel and a few slabs dotted about the area. Building Regulations. Beechcraft St. ACO offers a full product line solution for track and field, as well as the surrounding public. Handyandy Screwfix Select. linked with any DPM. b) drainage. In March 2021 ACO and AIT-Dialog have been successfully launching a virtual tour of the world's seven continents inviting architects, urban planners, engineers and landscape architects to become part of "beyond. I have some questions around insulating below the DPC though. ACO Infrastructure Surface drainage systems for roads, bridges and. One solution would be to lower the ground outside below DPC and perhaps install an aco drain? This would likely mean chasing out some of the concrete foundations, something we're concerned may compromise the steel. Is a linear drain or pea shingle the least risky as I don’t think we can move to a step option so we will have to hope for the best. 22,158. ACO DRAIN® S 100 to S 300 systems are ACO's heavy duty solution – suitable for all load classes from A 15 to F 900 to EN 1433. With a range of accessories available from corner units to ø110mm vertical outlets, it is now possible to use as. 26 DPC; 6. Welcome to ACO! We specialise in designing and manufacturing high-grade concrete trench drain systems, engineered to tackle water management challenges in any environment. Northeast Office Toll Free: 800-543-4764 9470 Pinecone Dr. 643. A reason that building regs dictate the 150mm below dpc rule is to reduce any rain splashing above the dpc level where there is most risk of damp bridging to inside. 6 Drives, paths and landscaping. Can DPC be above floor level? An accessible or level threshold consists of three principal elements: 1. ACO Sport. Add to basket. € 58. ACO Drain® – robust durable trench drains for all applications; Understanding slip resistance; ACO. I have spoken to my builder and he has said we can either make a channel by breaking out the concrete and digging down and then laying pee gravel in the channel 150mm minimum below the DPC, or raise the DPC up by a course of bricks in the effected area and then step it back down again to join the original DPC in the un effected area. High quality ACO stainless steel channel drainage, designed specifically for use in applications that require the damp proof course to be sealed to the channel. This document was published in. o. When designing Type C (drained) protection, as classified in BS 8102: 2009, the product applied correctly, is capable of providing the levels of protection required for Grade 1, 2 & 3 basements. Damp proofing is defined by the American Society. AS101 DPC Channel For drainage applications where damp proofing is required. Contract Closeout Guidebook October 2019 7 DFARS PGI 204.