Minimum Material Testing Requirements (MMTR)
Schedule of Minimum Test Requirements Governing Items of Work of the DPWH Standard Specifications for Highways, Bridges, and Airports, 1988
Earthworks
Item 100 – Clearing and Grubbing
Tests: None
Item 101 – Removal of Structures and Obstruction
Tests: None
Item 102 – Excavation
Tests: Same as for item 103, 104, and 105 or whichever is applicable
Item 103 – Structure Excavation
If excavated materials are wasted, the volume involved shall be reported, so that quality control requirements may be adjusted accordingly. Submit Project Engineer Certificate of waste.
If excavated materials are incorporated into work:
Tests:
For every 1500 cu.m. or fraction thereof:
1-G, Grading Test
1-P, Plasticity Test (LL, PL, PI)
1-C, Laboratory Compaction Test
For every 150 mm layer in uncompacted depth
1- D, Field Density
Item 104 – Embankment
Tests:
For every 1500 cu.m. or fraction thereof:
1-G, Grading Test
1-P, Plasticity Test (LL, PL, PI)
1-C, Laboratory Compaction Test
For each 500 sq.m of each layer of compacted fill or fraction thereof at least one group of three in-situ density tests. The layers shall be placed not exceeding 200 mm in loose measurement or based on the result of compaction trials.
Item 105 – Sub-grade preparation
Same as for item 104
Item 106 – Compaction Equipment and Density Control Strips
Tests: same as for items 104, 105, 200, 201, 202, 203, 204, 205, 206, and 300
Item 107 – Overhaul
Tests: None
SUBBASE AND BASE COURSE
Item 200 – Aggregate Subbase course
Tests:
For every 300 cu.m. or fraction thereof :
1 – G, Grading Tests
1 – P, Plasticity Test (LL, PL, PI)
For every 1500 cu.m. or fraction thereof:
1 – C, Laboratory Compaction Test
For every 2500 cu.m. or fraction thereof:
1 – CBR, California Bearing Ratio Test
For every layer of 150 mm of compacted depth/based on the results of compaction trials:
At least one group of three in-situ density tests for each 500 sm or fraction thereof.
Item 201 – Aggregate Base Course
Tests:
For every 300 cu.m. or fraction thereof:
1 –G, Grading Test
1 – P, Plasticity Test (LL, PL, PI)
For every 1500 cu.m. or fraction thereof:
1 –Q, Quality Tests (Grading, Plasticity and Abrasion)
1 – C, Laboratory Compaction Test
For every 2500 cu.m. or fraction thereof:
1 – CBR, California Bearing Ratio Test
For every layer of 150 mm of compacted depth/based on the results of compaction trials:
At least one group of three in-situ density tests for each 500 sm or fraction thereof.
Item 202 – Crushed Aggregate Base Course
Tests: Same as for Item 201
For every 1500 cu.m. or fraction thereof:
1 – F, Fractured Face
Item 203 – Lime Stabilized Road Mix Base Course
Amount of Lime to be added:
3 to 12 mass percent of dry soil aggregate
Tests:
A. Soil Aggregate
For every 300 cu.m. or fraction thereof:
1 – G, Grading Test
1 – P, Plasticity Test (LL, PL, PI)
For every 1500 cu.m. or fraction thereof:
1 – Q, Quality Test (Grading, Plasticity, and Abrasion)
B. Mix
For every 300 cu.m. or fraction thereof:
1 – C, Laboratory Compaction Test
1 – U, Unconfined compression test
1 – CBR, California Bearing Ratio Test
C. Compacted Base Course
For every layer to 150 mm compacted depth:
1 – D, Field Density Test for every 150mm or fraction thereof
1 – T, Thickness Determination for every 150 mm or fraction thereof
D. Hydrated Lime
For every 100 t or fraction thereof:
1 – Q, Quality Test
Item 204 – Portland Cement Stabilized Road Mixed Base Course
Amount of Cement to be Added:
6 to 10 mass percent of dry soil aggregate
Tests:
A. Soil Aggregate:
Same as for item 203
B. Cement
1 – Q, Quality test for every 2000 bags or fraction thereof
C. Water
1 – Q, Quality Test / Project Engineer’s Certificate
D. Mix
For every 300 cu.m. or fraction thereof:
1 – C, Laboratory compaction Test
1 – UC, Unconfined Compression Test
1 – CBR, California Bearing Ratio Test
E. Compacted Base Course
For every layer of 150 mm compacted depth
1 – D, Field Density for every 150 m or fraction thereof
1 – T, Thickness Determination for every 150 m or fraction thereof
Item 205 – Asphalt Stabilized Road Mix Base Course
Amount of Asphalt to be added:
4 to 7 mass % of dry soil aggregate
Tests:
A. Soil Aggregate – same as for item 203
B. Emulsified Asphalt:
1 – Q, Quality Test for every 40 t or 200 drums or fraction thereof
C. Mix – same as for item 203
D. Compacted Base course – same as for item 203
Item 206 – Portland Cement Treated Plant Mix Base Course
Amount of cement to be added:
6 to 10 mass % of dry soil aggregate
A. Soil Aggregate
Tests: same as for item 203
B. Portland Cement
Tests:
For every 2000 bags or fraction thereof:
1 – Q, Quality Test
C. Water
Tests:
1 – Q, Quality Test / Project Engineer’s Certificate
D. Mix
Tests – same as for item 204
E. Compacted Base Course
Tests:
For every layer of 150 mm compacted depth
1 – D, Field Density Test for every 150 m or fraction thereof
1 – T, Thickness determination for every 150m or fraction thereof
Item 207 – Aggregate Stockpile
Tests: same as the specified item no. of the specifications
SURFACE COURSE
Item 300 – Aggregate Surface Course
Tests:
For every 300 cu.m. or fraction thereof
1 – G, Grading Test
1 – P, Plasticity Test (LL,PL,PI)
For every 1500 cu.m. or fraction thereof
1 – C, Compaction Test
1 – Q, Quality Test ( Grading, Plasticity, and Abrassion)
For every layer of 150 mm of compacted depth/base on the result of compaction trials.
At least one group of three in-situ density tests for each 500 sq.m. or fraction thereof.
For crushed Gravel or crushed stone, 1500cu.m. or fraction thereof:
1 – F, Fractured Face
Item 301 – Bituminous Prime Coat
Quantity: 1 to 2 L/sq.m.
Tests: 1- Q, Quality test for every 40 t or 200 drums
Item 302 – Bituminous Tack Coat
Quantity: 0.2 to 0.7 L/sq.m.
Tests: 1 – Q, Quality test for every 40 t or 200 drums
Item 303 – Bituminous Seal Coat
A. Bituminous Materials
Quantity: 0.2 to 1.5 L/sq.m.
Tests:
1 – Q, Quality Test for every 40 t or 200 drums
B. Cover Aggregates
Quantity: 5 to 14 kg/sq.m.
Tests: For every 75 cu.m./200 kg or fraction thereof:
1 – G, Grading Test
Item 304 – Bituminous Surface Treatment
A. Aggregate
Quantity:
Using Cut-Back Asphalt or Asphalt Cement-13.6 to 38.0 kg/sq.m.
Using Emulsified Asphalt-13.6 to 19.04kg/sq.m.
Tests:
For every 75 cu.m./200 kg or Fraction thereof:
1 – G, Grading Test
1 – P, Plasticity Test (PL, LL, PI)
For every 1500 cu.m. or fraction thereof:
1 – Q, Quality Test for: (Grading, Plasticity, Abrasion, Stripping, and Bulk Specific Gravity)
1- F, Fractured face
B. Bituminous Materials
Quantity:
Using Cut-Back Asphalt or Asphalt Cement – 1.58 to 2.04 L/sq.m.
Using Emulsified Asphalt – 1.58 to 2.04L/sq.m.
Tests: same as for item 301
Item 305 – Bituminous Penetration Macadam Pavement
A. Aggregate
Quantity;
1. Using Asphalt Cement or Rapid Curing
Coarse (Crushed) 90kg/sq.m.
Key (Crushed)_(13 & 11)_24kg/sq.m.
Cover (Crushed/Screened)_ 8kg/sq.m.
2. Using Emulsified Asphalt
Coarse (Crushed) 90kg/sq.m.
Choker (Crushed) 10kg/sq.m.
Key (Crushed)_(10 & 8)_ 18kg/sq.m.
Cover (Crushed/Screened)_8kg/sq.m.
Tests: Same as for item 304
B. Bituminous Materials
Quantity: 7.2 to 11 L/sq.m.
Tests: same as for item 301
Item 306 – Bituminous Road Mix Surface Course
A. Aggregates
Tests: Same as for Item 304
B. Bituminous Materials
Quantity:
1. Using Cut-Back Asphalt – 4.5 to 7.0 mass % of total dry aggregates
2. Using Emulsified Asphalt – 6.0 to 10.0 mass % of total dry aggregates
Tests: Same as for Item 301
C. Mix
Tests: For every 75 cu.m. / 130 t or fraction thereof:
1- G, Grading Test
1 – Ext., Extraction
1 – Sty., Stability
1 – C, Laboratory Compaction Test
D. Hydrated Lime
For every 100 t or fraction thereof:
Tests: 1 – Q, Quality Test
E. Compacted Pavement
For each full day’s operation:
Tests: D & T (Density and Thickness Test) – at least one but not more than three (3) samples shall be taken.
Item 307 – Bituminous Plant – Mix Surface Course – General
A. Aggregates
Tests:
For every 75 cu.m. / 200 t or fraction thereof:
1 – G & P, Grading and Plasticity Tests
For every 1500 cu.m. or fraction thereof:
1 – Q, Quality Test for: (Grading, Plasticity, Abrasion, Stripping, and Bulk Specific Gravity)
1 – F, Fractured Face
B. Bituminous Materials
Quantity: 5 to 8 mass % of total dry aggregate
Tests: 1 – Q, Quality Test for each 40 t or fraction thereof
C. Mix
Tests: For every 75 cu.m. / 130 t or fraction thereof :
1 – G, Grading Test
1 – Ext., Extraction
1 – Sty., Stability
1 – C, Laboratory Compaction
D. Hydrated Lime
Tests: For every 100 t or fraction thereof:
1 – Q, Quality Test
E. Mineral Filler
Tests: For every 75 cu.m. or fraction thereof:
1 – G & P, Grading & Plasticity Tests:
(LL, PL, PI)
F. Compacted Pavement
Tests: For each full day’s operation:
D & T (Density & Thickness Test) – at least one but not more than three samples shall be taken.
Item 308 – Bituminous Plant – Mix Surface Course, Cold Laid
A. Aggregate
Tests: same as for item 307
B. Bituminous Material
Quantity:
1. Using Cut-Back Asphalt 4.5 to 7.0 mass % of total dry aggregate
2. Using Emulsified Asphalt 6.0 to 10.0 mass % of total dry Aggregates
Tests: 1 – Q, Quality Test for every 40 t or 200 drums
C. Mix
Tests: Same as for item 307
D. Hydrated Lime
Tests: same as for item 307
E. Mineral Filler
For every 75 cu.m. or fraction thereof:
Tests: 1 – G & P, Grading and Plasticity Tests (LL, PL, PI)
F. Compacted Pavement
Tests: same as for item 307
Item 309 – Bituminous Plant Mix (Stockpile Maintenance Mixture)
A. Aggregate
Tests: same as for item 307
B. Bituminous Materials
Quantity: 4 to 10 mass % of total mix
Tests: 1 – Q, Quality Test for every 40 t or 200 drums
C. Mix
Tests: Same as for item 307
D. Hydrated Lime
Tests: same as for item 307
E. Mineral Filler
Tests: Same as for item 307
F. Compacted Pavement
Tests: same as for item 307
Item 310 – Bituminous Concrete Surface Course, Hot-Laid
A. Aggregate
Tests: same as for item 307
B. Bituminous Materials
Quantity: 5.0 to 8.0 mass % of total mix
Tests: 1 – Q, Quality Test for every 40 t or 200 drums
C. Mix
Tests: Same as for item 307
D. Hydrated Lime
Tests: same as for item 307
E. Mineral Filler
Tests: Same as for item 307
F. Compacted Pavement
Tests: same as for item 307
Item 311 – Portland Cement Concrete Pavement
A. Cement
Quantity: 9.0 bags/cu.m. (40kg/bag)
Tests: For every 2000 bags or fraction thereof
1 – Q, Quality Test
B. Fine Aggregate
Quantity:
1. 0.50 cu.m./cu.m. concrete (if rounded coarse aggregate is used)
2. 0.54 cu.m./cu.m. concrete ( if angular coarse aggregate is used)
Test: For every 1500 cu.m. or fraction thereof:
a. For a source not yet tested, or failed previous quality test:
1- Q, Quality Test for: Grading, Elutriation (wash), Bulk Specific Gravity, Absorption, Mortar Strength, Soundness, Organic Impurities, Unit Weight, % Clay Lumps and Shale.
b. For a source previously tested and passed quality test:
1 – Q, Quality test ( Grading, Elutriation (wash), Bulk Specific Gravity, Absorption and Mortar Strength)
For every 75 cu.m. or fraction thereof:
1 - G, Grading Test
C. Coarse Aggregate
Quantity:
1. 0.77 cu.m./cu.m. concrete ( if rounded coarse aggregate is used)
2. 0.68 cu.m./cu.m. cincrete ( if angular coarse is used)
Test: For every 1500 cu.m. or fraction thereof:
a. For a source not yet tested or failed in previous quality tests:
1 – Q, Quality Test for: Grading, Bulk Specific Gravity, Absorption, Abrasion, Soundness and Unit Weight
b. For a source previously tested and passed the quality tests:
1- Q, Quality Test for: Grading, Bulk Specific Gravity, Absorption and Abrasion
For every 75 cu.m. or fraction thereof:
1- G, Grading Test
D. Water
Tests: 1 – Certificate from Project Engineer or
1 – Q, Quality Test, if source is questionable
E. Joint Filler
1. Poured Joint filler
Tests: 1 – Q, Quality Test on each type of ingredient for each shipment
2. Pre-molded Joint Filler
Tests: 1-Q, Quality Test on each thickness of filler for each shipment
F. Special Curing Agents
Tests: 1- Q, Quality Test for each shipment
G. Steel Bars
Tests: For every 10,000 kg or fraction thereof for each size
1 – Q, Quality test (Bending, Tension, and Chemical Analysis)
H. Concrete
Tests: Flexural Strength Test on concrete beam samples:
1- set consisting of three beam samples shall represent of 330 sq.m. of pavement, 230 mm depth, or fraction thereof placed each day Volume of not more than 75 cu.m.
I. Completed Pavement
Tests: Thickness determination by concrete core drilling on a lot basis
Five (5) holes per km per lane or five (5) holes per 500m when 2 lanes are poured concurrently
BRIDGE CONSTRUCTION
Item 400 Piling
A. Timber Piles
Tests: 1 – Inspection Report for each size and shipment of Timber
B. Concrete Piles
a. Concrete
Tests: same a for item 405
b. Reinforcing Steel
Tests: same as for item 404
C. Structural Piles
Tests: 1 – Q, Quality Test/Mill Test Certificate
1 – IR, Inspection Report
Item 401 – Railings
A. Concrete
Tests: Same as for item 405, class C
B. Reinforcing Steel
Tests: Same a for item 404
Item 402 – Timber Structures
Tests:
1 – Q, Quality Test or Mill Certificate for each type of materials used
1 – Inspection Report for each size and shipment of Timber
Item 403 – Metal Structures
Tests:
1- Q, Quality Test or Mill Certificate for each type of Materials used
1 – Inspection Report for each type and shipment of metal used
Item 404 – Reinforcing Steel
A. Bar Reinforcement for concrete for every 10,000 kg or fraction thereof for each size:
1 – Q, Quality Test for Bending, Tension and Chemical Analysis
C. Wire and Wire Mesh
1 – Q, Quality Test
Item 405 – Structural Concrete
A. Cement
Quantity: (40 kg/bag)
Class A 9.0 bags/cu.m. of concrete
Class B 8.0 bags/cu.m. of concrete
Class C 9.5 bags/cu.m. of concrete
Class P 11.0 bags/cu.m. of concrete
Tests: For every 2000 bags or fraction thereof
1 – Q, Quality Test
B. Fine Aggregate
Quantity: cu.m./cu.m. of concrete
For Rounded For Angular
Class A 0.50 0.54
Class B 0.45 0.52
Class C 0.53 0.59
Class P 0.44 0.47
Tests: For every 1500 cu.m. or fraction thereof
a. For a source not yet tested, or failed previous quality test:
1- Q, Quality Test for: Grading, Elutriation (wash), Bulk Specific Gravity, Absorption, Mortar Strength, Soundness, Organic Impurities, Unit Weight, % Clay Lumps and Shale.
b. For a source previously tested and passed quality test:
1 – Q, Quality test ( Grading, Elutriation (wash), Bulk Specific Gravity, Absorption and Mortar Strength)
For every 75 cu.m. or fraction thereof:
1 - G, Grading Test
C. Coarse Aggregates
Quantity: cu.m./cu.m. of concrete
For Rounded For Angular
Class A 0.77 0.68
Class B 0.82 0.73
Class C 0.70 0.68
Class P 0.68 0.65
Tests: For every 1500 cu.m. or fraction thereof:
a. For a source not yet tested or failed in previous quality tests:
1 – Q, Quality Test for: Grading, Bulk Specific Gravity, Absorption, Abrasion, Soundness and Unit Weight
b. For a source previously tested and passed the quality tests:
1- Q, Quality Test for: Grading, Bulk Specific Gravity, Absorption and Abrasion
For every 75 cu.m. or fraction thereof:
1 – G, Grading Test
D. Water
Tests: 1 – Q, Quality Test, if source is questionable / Certificate of Project Engineer
E. Pre-Molded Filler for Expansion Joints
Tests:
1 – Q, Quality Test on each thickness of filler for each shipment
F. Steel Reinforcement
Tests:
1 – Q, Quality Test for every 10,000kg or fraction thereof for each size
G. Concrete
Tests:
Compressive strength test on concrete cylinder samples. 1-set consisting of 3-concrete cylinder samples shall be taken from each day’s pouring and to represent not more than 75 cu.m. o concrete or fraction thereof.
Item 406 – Pre-stressed Concrete Structure
A. Concrete
Tests: same as for item 405, Class P
B. Steel Reinforcement
Tests: same as for item 404
C. Wire Strand
Tests:
1 – Q, for every 20 t or fraction thereof
Item 407 – Concrete Structures
Tests:
Same as for item 403, 404, 405, and 411 Elastomeric Bearing Pad will be tested to determine its quality
Item 408 – Steel Bridges
Tests: same as for item 403 and 411
Painting:
1 – Q, One 20-L can for every 100 cans or fraction thereof or
1 – Q, One 4-L can for every 100 cans or fraction thereof
Item 409 – Welded Structural Steel
Tests: same as for item 403 and inspection report
Item 410 – Treated and Untreated Timber
Tests: Inspection Report for Timber
1 – Q, Quality Test for Preservatives
Item 411 – Paint
Tests:
1 – Q, One 20-L can for every 100 cans or fraction thereof or
1 – Q, One 4-L can for every 100 cans or fraction thereof
DRAINAGE AND SLOPE PROTECTION STRUCTURES
Item 500 – Pipe Culverts and Storm DrainsA. Pipes
Tests:
1 – Pipe for every 50 pieces: Strength, Absorption and Dimension
Alternatives Requirement:
1 – set consisting of 3 – concrete cylinder samples for not more than 25 pipes cast in the field
1 – Inspection Report for each size for not more than 25 pipes cast in the field
Cement, Fine Aggregates and Water – same as for item 405
B. Mortar for Joint
Tests: Cement, Fine Aggregates and Water – same as for item 405
Item 501 – Under drains
A. Concrete Pipe ( Non-Reinforced)
Tests: 0.5% of the number of pipes o each size but not less than 2, for strength, absorption and dimension
Alternatives Requirements:
1 – set consisting of 3 – concrete cylinder samples for not more than 25 pipes cast in the field
1 – Inspection Report for each size for not more than 25 pipes cast in the field
B. Clay Pipe
Tests:
1 – Pipe for every 200 pieces each size, with a minimum of 2 specimens for strength, absorption and dimension
Item 502 – Manholes, Inlets and Catch Basins
A. Concrete
Tests: same a for item 405, class A
B. Lids, Cast Iron Frames and Grating
Tests: Inspection Report
Item 503 – Cleaning and Reconditioning
Existing Drainage Structures
Tests: Inspection Report
Item 504 – Rip-rap and Grouted Rip-rap
Tests: same as for item 505
Item 505 – Stone Masonry
A. Cement
Quantity: 2 bags/cu.m. of concrete
Tests: for every 2000 bags or fraction thereof
1 – Q, Quality Test
B. Fine Aggregate
Quantity: 0.17 cu.m./cu.m. of concrete
Tests: for every 2000 bags or fraction thereof
1- Q, Quality Test for:( same a for item 405)
for every 75 cu.m. or fraction thereof:
1 – G, Grading Test
C. Stone
Tests: Inspection Report
D. Water
Tests:
1 – Certificate from Project Engineer
1 – Q, Quality Test, if source is questionable
Item 506 – Hand-Laid Rock Embankment
Tests: Inspection Report
Item 507 – Sheet Piles
A. Timber Sheet Piles
Tests: Inspection Report
B. Concrete Sheet Piles
Tests: same as for item 400
C. Steel Sheet Piles
Tests: same as for item 403
Item 508 – Concrete Slope Protection
A. Bed Course
Tests: same as for item 200
B. Steel Reinforcement
Tests: same as for item 404
C. Concrete
Tests: same as for item 405
Item 509 – Gabions
Tests:
1 – Q, Quality Test for each shipment
MISCELLANEOUS STRUCTURES
Item 600 – Curb and or Gutter
A. Concrete
Quantity:
0.078 cu.m./m (curb only)
0.092 cu.m./m (Curb & Gutter,Type A)
0.149 cu.m./m (Curb & Gutter,Type B)
0.074 cu.m./m (Curb & Gutter,Type C)
Tests: same as for item 405
B. Joint Filler
Tests: same as for item 311
Item 601 – Sidewalk
A. concrete
Tests: same as for item 405, class A
B. Pre-molded Expansion Joint Filler
Tests: same as for item 311
Item 602 – Monuments, Markers, and Guide Post
A. Concrete
Tests: same a for item 405
B. Reinforcing Steel
Tests: same as for item 404
C. Timber
Tests: same as for item 410
D. Paint
Tests: Same a for item 411
Item 603 – Guardrail
A. Steel Post
Tests: same as for item 403
B. Timber Post
Tests: same as for item 410
C. Concrete
Tests: same as for item 405
D. Reinforcing Steel
Tests: same as for item 404
E. Rail
Tests: Inspection Report
F. Paint
Tests: Same as for item 411
Item 604 – Fencing
A. Barbed Wire, Chain Link Fabric
Tests: 1 – Q, Quality Test
B. Concrete Post
Test: Same as for item 405
Steel Reinforcement:
Same as for item 404
Item 605 – Road Sign
Tests: Inspection Report
Item 606 – Pavement Markings
Tests: same as for item 411
Item 607 – Reflective Pavement Studs
Tests: Inspection Report
Item 608 – Topsoil
Tests: Inspection Report
Item 609 – Sprigging
Tests: Inspection Report
Item 610 – Sodding
Tests: Inspection Report
Item 611 – Tree Planting
Tests: Inspection Report
MATERIALS DETAILS
Item 700 – Hydraulic Cement
Tests: Same as for item 405
Item 701 Construction Lime
Tests: 1 – Q, Quality Test for every 100 t or fraction thereof
Item 702 – Bituminous Materials
Tests: same as for item 301,302,303,307,308,309, and 310
Item 703 – Aggregates
Tests: same as for item of work specified in the bill of quantities
Item 703A – Mineral Filler
Tests: same as for item 307
Item 704 – Masonry Units
Tests: 1 – Q, Quality Test for every 10,000 units or fraction thereof
Item 705 – Joint Materials
Tests: same as for items 311 and 500
Item 706 – Concrete, Clay, Plastic, and Fiber Pipe
Concrete Pipes
Tests: same as for item 500
Clay and other types of pipes
Tests: refer to the applicable requirements of AASHTO Tests and Specifications
Item 707 – Metal Pipe
Tests: same as for item 400
Item 708 – Concrete Curing Materials and Admixtures
Tests: 1 – Q, Quality Test for each shipment
Item 709 – Paints
Tests: same as for item 411
Item 710 – Reinforcing Steel and Wire Rope
Reinforcing Steel
Tests: same as for item 404
Wire Rope
Tests: same as for item 406
Item 711 – Fence and Guardrail
Fence
Tests: same as for item 604
Guardrail
Tests: same as for item 603
Item 712 – Structural Metal
Tests: same as for items 403 and 409
Item 713 – Treated and Untreated Timber
Tests: same as for item 410
Item 714 – Water
Tests:
1 - Certificate from Project Engineer
1 - Q, Quality Test, if source is questionable
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