Really I appreciate you. Check out 42 similar fluid mechanics calculators , Use the hydrostatic pressure equation and multiply water density by pool dept and by the constant of gravity. The safe evacuation of test liquids/gases. The hoop stress should be calculated using the maximum allowable diameter from the purchase specification. Both had to do with unreliable pipe material. - Pressure tests on the piping . 2. Instrument and control piping may be pressure tested using air, natural gas or inert . The pneumatic test pressure shall not be less than 1.2 nor more than 1.5 times the design pressure of the piping system. 5- People working near the line under pressure should be reminded to keep the safety distance out of line. The calculator can solve this equation. For pneumatic test the test factor = 1.1. The most common liquid used for conducting a hydrostatic pressure test is water; however, other liquids can and have been used for hydrostatic pressure tests. p Test pressure (bar), Dear Ranjan, find out the Cause of failure and rectified. Appropriate measures to manage the risk of a potential testing failure must be considered. where D - Internal diameter (m) Explain mathematic questions In the case of fishes, the whole column of water they have above them plus the atmospheric pressure generates the hydrostatic pressure. Hydrostatic testing shall be conducted only after all new work has been installed. In this case, you can calculate the minimum pressure requirement with the equation 1.5PST divided by S, where P equals the design pressure, ST equals the allowable stress at the test temperature, and S equals the allowable stress at the design temperature. B31.3 Clause 345.2.2 (a) - 10 minutes minimum. Access to the test area must be limited to essential personnel only barriers, warning signs, PA announcements, patrolling the test boundaries. Now also i am gaining advanced and latest knowledge and techniques from you. What is the base of 1000000 ? 5.2. Check that any attachments unable to withstand the test pressure must be removed. The code reference given was Norwegian specification T0240|72-12| and in the footer Rules, issue 96-02. Huub The result will be. Since the value of stored energy is 224,057,795 J the safe distance to be maintained as per this section is 60m. Calculate ASME B31.3 water volume and liquid chemical dose rate for water hydrotest. By joining you are opting in to receive e-mail. You can also check our air pressure at altitude calculator if you don't want to go deeper but higher. Guidelines set forth in the AWWA M41 Manual and the ANSI/AWWA C600 Standard are as follows: "Test pressure shall be 1.25 times the operating pressure. This site uses Akismet to reduce spam. Pump selection is based upon the hydro-test pressure. a Length/diameter of piece (m) Save my name, email, and website in this browser for the next time I comment. F-&9= this calculator is very useful for daily reference. Environment, Safety & Health Division Pressure Systems | Pressure Test Procedures . What is the safe distance for Pressure Testing? Testing should be carried out underPTW, which is required for each test or at least a test package for the same location. 192.505 Strength test requirements for steel pipeline to operate at a hoop stress of 30 percent or more of SMYS. here. Apply pressure to the pipeline to bring it to its acceptable test pressure. Keep going. 890 0 obj <> endobj Blanking devices (spades blinds etc.) The liquid is pressurized within the pipeline or vessel to make sure that it can withstand the pressures of normal usage. Pneumatic testing and very high-pressure hydro-testing conducted when the main test area is free of personnel. (e) If a component other than pipe is the only item being replaced or added to a pipeline, a strength test after installation is not required, if the manufacturer of the component certifies that: (1) The component was tested to at least the pressure required for the pipeline to which it is being added; (2) The component was manufactured under a quality control system that ensures that each item manufactured is at least equal in strength to a prototype and that the prototype was tested to at least the pressure required for the pipeline to which it is being added; or. Calculate ASME B31.3 general pipe test pressure and hoop stress check from operating pressure, diameter, wall thickness, wall thickness tolerance and design stress. How to calculate Hydrotest Pressure? 192.515 Environmental protection and safety requirements. The key is to release the pressure gradually to a safe location, where no one will be impacted. After the pressure has been released, the vent valves shall be opened. All rights reserved. Calculate test pressure and hoop stress for low pressure plastic pipe (ASME B31.3 section A345). Barriers & Signs in place (agreed distance). And Thank you. Search & Navigation `B@-, The figure below shows a component of a pipeline, which is launched at a pneumatic pressure test. Pressure Testing and Safe Distance calculation. 5103, 60101 et. shall confirm the required equipment specification. B (c) The test pressure must be at least 150% of the maximum operating pressure or 50 psi (345 kPa) gauge, whichever is greater. This subpart prescribes minimum leak-test and strength-test requirements for pipelines. 909 0 obj <>/Encrypt 891 0 R/Filter/FlateDecode/ID[<4CE15B989B691246B67B596FD798D7F8>]/Index[890 25]/Info 889 0 R/Length 90/Prev 324900/Root 892 0 R/Size 915/Type/XRef/W[1 2 1]>>stream Rating of fittings, pressure gauges, vent valves, gaskets shall be suitable for the test pressure. In order to test, the pipe or pressure vessel must be . The technical storage or access that is used exclusively for anonymous statistical purposes. After the pressure has been released, the vent valves shall be opened. Close this window and log in. This content is from the eCFR and may include recent changes applied to the CFR. Whenever a segment of steel transmission pipeline that is operated at a hoop stress level of 30 percent or more of SMYS is spike tested under this part, the spike hydrostatic pressure test must be conducted in accordance with this section. Person . The NCNR high pressure activity responsible requests that any pressure equipment or sub-system thereof be submitted to 192-85, 63 FR 37504, July 13, 1998]. For low pressure pipe, select the Barlow's equation with ASME Y factor option, with the pipe nominal diameter. Metal 3D printing has rapidly emerged as a key technology in modern design and manufacturing, so its critical educational institutions include it in their curricula to avoid leaving students at a disadvantage as they enter the workforce. The R factor is required if the allowable stress at the test temperature is greater than the allowable stress at the design temperature. 185(w)(3), 49 U.S.C. Formal records of pressure and leak testing are maintained and kept. - You never get what you expect, you only get what you inspect. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. For hydrotest the test factor = 1.5. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. Transmission lines: Spike hydrostatic pressure test. The hydrostatic test pressures specified herein shall be maintained for a period of two hours. I have made my own calculation spreadsheet based on PCC. It reaches the highest known depth of 10.994 m. Let's use our hydrostatic pressure calculator to estimate the pressure at the bottom of the Marian Trench (remember to choose salty water with = 1022 kg/m). The hydrostatic test parameters must be clearly defined during the design phase and stated in the project specifications. 1 Joule= 10.197KgFCm 1KJ=1000J Stored Energy. However, inspectors still have to crawl over the unit to look for leaks. In addition, in a Class 1 or Class 2 location, if there is a building intended for human occupancy within 300 feet (91 meters) of a pipeline, a hydrostatic test must be conducted to a test pressure of at least 125 percent of maximum operating pressure on that segment of the pipeline within 300 feet (91 meters) of such a building, but in no event may the test section be less than 600 feet (183 meters) unless the length of the newly installed or relocated pipe is less than 600 feet (183 meters). An allowance should be made for the pipe design temperature. 832 0 obj <>/Filter/FlateDecode/ID[<449897BAF408BE4980A97DAF38A963FD>]/Index[810 57]/Info 809 0 R/Length 115/Prev 388665/Root 811 0 R/Size 867/Type/XRef/W[1 3 1]>>stream 4>%'G"wUDc~@c~uIRXlN 67!lDf Eb#2IZQD}G#)v95dj(IhZ >i,#CYUTT%6N=c_m7#sn EY|@U9 About this app. . Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Materials of construction should have the required ductility (flexibility). Pressure Testing (Hydrostatic / Pneumatic) Safety Guidelines Document: CS-S-9 Revision: 0 Publication Date: September 2012 Page 2 of 7 3.1.2 Provide for and require that signs, barricades or other protective barriers are placed in a manner and at a distance sufficient to demarcate a safe zone to protect personnel and the V p total volume under test pressure, m3 (ft3) When using air or nitrogen as the test medium (k p 1.4), this equation becomes E p 2.5 P at 0.286V 1(P a/P at) (II-2) and TNT p E 4266920 (kg) (II-3) 197 where E p stored energy, J P a p absolute atmospheric pressure, 101 000 Pa P at p absolute test pressure, Pa V p total volume under test . . Only essential personnel are allowed access to the test area, and then only after pressure has been held for a reasonable period. You make understand very clearly in a simple language. 28 Appendix lll, "Safe Distance Calculations for. In our hydrostatic pressure calculator's advanced mode, you can change the gravitational acceleration g and the external pressure p0. Overview. For hydrotest and component pneumatic tests the test factor = 1.25. The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. Hydrostatic Pressure Formula. Ans: The depth of water column = 1m. For most cases external pressure can be ignored. Hydrostatic Pressure Formula is given by the equation p = * g * h + p0. Hydro testing hazards and control measures. Steel is A36 with Y = 36000psi and T=58000psi. The NCNR high pressure activity responsible reviews the experiment within this pressure range and may determine to approve the experiment. 49 CFR 172.101 But your every article is very information and in simple language. HYDRO TESTING SAFETY. endstream endobj 897 0 obj <>stream regarding that Frequency calculation LTI x 1000000/man-hours worked. Simply enter your basic pipeline information to compute results according to AWWA C600, the installation standard. Then, calculated hydrostatic force and center of pressure on the vertical face of the quadrant can be compared with the experimental results. (6) Elevation variations, whenever significant for the particular test. How do you calculate Hydrotest? No people were in the area during the burst, But some hydro test technicians and engineers had just left the area after having checked the Instrumental data. Hydrostatic Pressure Calculator. endstream endobj startxref a is length / diameter of piece. You deserve for appreciation. Pressure change "proportional" to volume change [P1V1= P2V2], Air filled balloon "pops" large, instantaneous energy release, Pressure changes finite amount by infinitesimal change in volume, Bulk modulus, K = 316,000 psi K = - P / [V / V], Water filled balloon does not "pop" no compressive energy, 4.44 lbf -ft is a small number that can be readily grasped, Typically, sudden energy release comparisons are made to a TNT equivalent 294,815 lb-ft = 0.2 lb TNT, TNT equivalent given as 1 kg TNT* = 4.184 x 106 J [1], or 1 lb TNT* equivalent = 1.4 x 106 lb-ft, *Note that some sources give 1 kg TNT = 4.63 x 106 J. 192.511 Test requirements for service lines. (4) After the test pressure stabilizes at the baseline pressure and within the first 2 hours of the 8-hour test interval, the hydrostatic pressure must be raised (spiked) to a minimum of the lesser of 1.5 times MAOP or 100% SMYS. SAFE DISTANCE COMMONLY USED FOR PNEUMATIC TESTS For Stored Energy Less than 27,134KJ Minimum safe Distance= +100Ft =31Mtr For Stored Energy Greater than 27,134KJ Minimum safe Distance= +150Ft =46Mtr The maximum calculated stored energy of any vessel or piping system being pneumatically pressure . (276 kPa) gage must be tested to at least 90 p.s.i. A positive means of . (c) Except as provided in 192.505(a), if air, natural gas, or inert gas is used as the test medium, the following maximum hoop stress limitations apply: (d) Each joint used to tie in a test segment of pipeline is excepted from the specific test requirements of this subpart, but each non-welded joint must be leak tested at not less than its operating pressure. RLS HUMAN CARE PLANTING A TREE ON EVERY 17,000 PAGE VISITS. hbbd```b``.dd"rwV9,nw`0 =$[JA w u g27{#3*rH"W B[ Diameter (in) Pipeline Segment Length (ft) Test Pressure (PSI) Testing Allowance (gal/hr) Computed per latest edition ANSI/AWWA C600 Rev 2010. *Eng-Tips's functionality depends on members receiving e-mail. or existing codification. Calculate minimum safe distances between the piping system being pneumatically tested and personnel/plant facilities using ASME . Keep a safe distance during the pressure test to minimize safety risk. However, if the buildings are evacuated while the hoop stress exceeds 50 percent of SMYS, air or inert gas may be used as the test medium. For all non-compressed gas type cylinders, you can use a manual or powered hydrostatic test pump as long as it meets the following requirem ents [29 CFR 1910.157(f)(15)(ii)]: It must be capable of producing at least 150 percent of the test pressure, and include the appropriate check valves and fittings. Boiler external piping must be hydrostatic tested in accordance with PG-99 of ASME Code Section I. (a) An operator must make, and retain for the useful life of the pipeline, a record of each test performed under 192.505, 192.506, and 192.507. 4.0 PRESSURE TEST 4.1 Preparation for Pressure Test . Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. p Test pressure (bar) Then, calculate the hydrostatic pressure test value. Pneumatic testing introduces hazards that must be identified and understood. The dose rate can be calculated from dose volume fraction, dose mass fraction or dose gas ratio. The person in the Charges Responsibilities as follows: Activity Requirements / Guidelines for pressure testing: Hydro & Pneumatic Strength Testing What to Look for: If there is a failure during the testing do the following: E-booksthe-safe-isolation-of-plant-and-equipment, Guide for Working With Corrosive Substances and how to avoid it, Photo of the day: If An Earthquake Shakes You-Infographic free. If the fluid is at rest, we call it hydrostatic pressure. Displaying title 49, up to date as of 3/02/2023. Use the Result Table option to display a table of the diameter and diameter tolerance versus either wall thickness type, diameter tolerance type, or diameter type. This online calculator can solve hydrostatic pressure problems by finding unknown values in the hydrostatic equation. Pressuring equipment should not be left unattended at any time during the test. {,L citations and headings Learn how your comment data is processed. Thank you for sharing this valuable information with us. Safety Precautions of Hydro Test: 1. The system is tested while assembled or partially assembled, based on the particular system. thermal expansion of liquids in a closed system. Strength test requirements for steel pipeline to operate at a hoop stress of 30 percent or more of SMYS. learn more about the process here. This video explains How to Calculate the Hydrotest pressure of Vessels and Piping systems as per ASME & PED. thermal expansion of liquids in a closed system. LTI x 1000000/ Man hours worked what is the base of 1000000. ;uYi8C[ k]1UR5w!4; l = 30; 3.6 x cube root of (volume x ((test pressure + length) - ((test pressure + length) ^ 0.714))). For the safety distance of the Hydro test. The technical storage or access that is used exclusively for statistical purposes. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. Effective communication should be established. Buy a Subscription to use the tools in plus mode (with plots, tables, goal seek etc). Pressure monitoring to be conducted in any adjacent systems that are not positively isolated. Over the years, I have conducted hundreds of pressure tests, and I have collected a lot of documentation about this non-destructive test method. Engineering Codes, Standards & Certifications, thread292-225652: Hydrostatic Testing Safety, Low-Volume Rapid Injection Molding With 3D Printed Molds, Industry Perspective: Education and Metal 3D Printing. Consideration to be given for the change of ambient temperature, e.g. Equipment tested and calibrated (QC reviewed), PTW Issued and posted with the M/S (incl. 0 *Eng-Tips's functionality depends on members receiving e-mail. i9HS,J`k u+l8%w)|$d2t/UYt."wMZNbXJ8w0QCXI-NiC0`I +"(dWsfyuD.*=Cd^qEZA AIf$8KDQen a'O"h:Y)}6&\is&_yi' 192-124, 83 FR 58719, Nov. 20, 2018]. Control has to be given during this stage too. To provide the best experiences, we use technologies like cookies to store and/or access device information. Persons supervising pressure/leak tests must be trained, competent, and qualified. test pressure shall be 1.2 times MAOP for water piping and 1.1 times MAOP for other utility piping. [PLUS] tools are free in basic CHECK mode with Login or Open a free account (CHECK values no plots, tables, goal seek etc). (a) In conducting tests under this subpart, each operator shall insure that every reasonable precaution is taken to protect its employees and the general public during the testing. Thats the best way to learn the methods and verify if your method is correct. Thanks. Hydrostatic Pressure Formula. An alternative leak test is only permitted by ASME B31.3 when: Exposure of the piping to water via a hydrostatic test would damage the linings or internal insulation, or contaminate a process that would be hazardous, corrosive, or inoperative in the presence of moisture; and They are then revalidated at regular intervals according to the relevant standard. A test pressure of 1.5 times the maximum allowable working pressure (a minimum of 20 psi for the oil side) is used for the test. For ASME III piping and tubing systems the hydrostatic test pressure is often 1.25 P design to which are typically added a 6% code margin and a 75 psi test margin. Hydrostatic testing is the first test used on the lube system. Using this test helps maintain safety standards and durability of a vessel over time. For pneumatic test the test factor = 1.1. guide. 1/1.1 Calculate low pressure metal pipe SMYS (Specified Minimum Yield Stress), SMTS (Specified Minimum Tensile Stress) and basic allowable stress schedule (ASME B31.3 table A-1). Already a member? 192-85, 63 FR 37504, July 13, 1998; Amdt. Thanks a lot, where D Internal diameter (m) 192.513 Test requirements for plastic pipelines. 192-120, 80 FR 12779, Mar. (b) The test procedure must insure discovery of all potentially hazardous leaks in the segment being tested. The hoop stress should be calculated from the pressure difference during testing. To explore fluid pressure further, visit our PSI to GPM calculator. Close examination of equipment at above maximum allowable working pressure shall not take place until the pressure has been held for 30 min. endstream endobj startxref CLICK HERE FOR SAFETY OFFICER INTERVIEW QUESTIONS ANSWERS. (a) Each segment of a service line (other than plastic) must be leak tested in accordance with this section before being placed in service. Daily I see practices that can and should be better. This spike hydrostatic pressure test must be held for at least 15 minutes after the spike test pressure stabilizes. Calculation of SAFETY DISTANCE for pressure testing, Engineering Codes, Standards & Certifications, Low-Volume Rapid Injection Molding With 3D Printed Molds, Industry Perspective: Education and Metal 3D Printing. Personally, I have only two incidents experienced during pressure testing. Pressing enter in the search box The pressure fluid at rest generates because of the earth's gravitational pull. 4. Calculateminimum safe distances between the piping system being pneumatically tested and personnel/plant facilities using ASME PCC-2 Mandatory Appendix 501-II and III equations. Pneumatic Test. seq., and 49 CFR 1.97. 192.507 Test requirements for pipelines to operate at a hoop stress less than 30 percent of SMYS and at or above 100 p.s.i. (2) The baseline test pressure must be as specified in the applicable paragraphs of 192.619(a)(2) or 192.620(a)(2), whichever applies. This hydrostatic pressure calculator determines the hydrostatic pressure acting on an object floating at a certain depth in a liquid. result, it may not include the most recent changes applied to the CFR. SWMS) at the workplace. The dose rate can be calculated from the dose volume fraction, the dose mass fraction, the dose volume ratio, or the dose mass ratio. ny.y}gzma,R RTtfn}SF#1dx^2nOyRP4F^`02vA\C1ej&2Je4&$I,Xv=N8H(~)0AoBS{f6'e904?!d\rq?3SZ8Piw!c? Please explain me sir. (8) Evidence of a review of all procedures and assessments by a qualified technical subject matter expert. Dear sir, a Length/diameter of piece (m) Hydrostatic Pressure = 1.3 x MAWP or Design Pressure x ( stress value at Test Temperature / stress value at design temprature ). For gases (4.3) it is : l = 30; 3.6 x cube root of (volume x ( (test pressure + length) - ( (test pressure + length . g is the gravitational acceleration and its value on earth is 9.80655 m/s. 192-74, 61 FR 18517, Apr. I was in OSH field for last 26 year as enforcement inspector of Government. Pneumatic testing is inherently more hazardous than a hydrostatic test of the same conditions of volume, pressure, and temperature so appropriate safety precautions are . The density of water at 32 o F is 1.940 slugs/ft 3.The pressure acting in water at 3 ft can be calculated as. 2)For hydros testing, a nonhazardous liquid such as water shall be used at temperatures below 32C and over 10C to aid in avoiding condensation during the test. I still believe in respect. The density of water at 4 o C is 1000 kg/m 3.The pressure acting in water at 1 m can be calculated as. The elevation gradient, along with the location and volume of the water source, and the pipe design data should be used to determine the length and number of test segments. Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. will also bring you to search results. Already a Member? Choosing an item from (d) For fabricated units and short sections of pipe, for which a post installation test is impractical, a preinstallation pressure test must be conducted in accordance with the requirements of this section. Please tell me what means of a and this p Thanks. The pressure design wall thickness is recommended for corroded piping. However, the maximum test pressure may not be more than 2.5 times the pressure determined under 192.121 at a temperature not less than the pipe temperature during the test. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. All equipment, plant, and devices used for pressure and leak testing are properly rated, adequately calibrated, maintained, and checked. For high pressure pipe select the log equation option. Login or Open a free account to use the tools in plus mode (with plots, tables, goal seek etc). The notification must be made in accordance with 192.18 and must include the following information: (1) Descriptions of the technology or technologies to be used for all tests, examinations, and assessments; (2) Procedures and processes to conduct tests, examinations, assessments, perform evaluations, analyze defects, and remediate defects discovered; (3) Data requirements, including original design, maintenance and operating history, anomaly or flaw characterization; (4) Assessment techniques and acceptance criteria; (5) Remediation methods for assessment findings; (6) Spike hydrostatic pressure test monitoring and acceptance procedures, if used; (7) Procedures for remaining crack growth analysis and pipeline segment life analysis for the time interval for additional assessments, as required; and. L Minimum Safety Distance, Meter For the Hydro test safe distanceSafe distance = (0.15)x(D)x(a)^0.4x(p)^0.6, For fluids (3.3) it is :l = 0.15 x internal diameter x ((alpha) ^ 0.4) x ((test pressure / (cube root of density))^ 0.6, For gases (4.3) it is :l = 30; 3.6 x cube root of (volume x ((test pressure + length) ((test pressure + length) ^ 0.714))), where D Internal diameter (m)A Length/diameter of the piece (m)P Test pressure (bar), IF YOU HAVE ANY ISSUE REGARDING PRESSURE TESTING SAFETY PROCEDURES PLEASE COMMENT BELOW. formatting. (b) Each main that is to be operated at less than 1 p.s.i. It specifies to use 1 million. IF YOU LIKE THIS ARTICLE (PRESSURE TESTING, HYDRO TESTING SAFETY PROCEDURE) PLEASE SHARE TO YOUR SAFETY-PROFESSIONAL FRIENDS. Personally, I believe that most accidents can be prevented during pressure testing, if a number of essential conditions, prior to the pressure test, are satisfied. The formula used is: p = gh = (1000kg/m 3)(9.81m.s-2)(1m) = 9810 Pa. Q2. The volume of equipment under test should be kept as small is greater than the test pressure. (345 kPa) gage. For plastic pipe use the Barlow's equation mid wall option, with the pipe nominal diameter. Already a Member? mGK#i`(()C"-LJe$:D 5.@!D|[iXQY[x.7Cl%>>XCS1#r#ja|#r*2E55Pepm RAJESH GOLDER says: February 2, 2022 at 4:20 pm . &`~YG?WV#4){U3Z. switch to drafting.ecfr.gov. The equation is as follows: It states that the pressure difference between two elevations in a fluid is the product of elevation change, gravity, and density. 192-85, 63 FR 37504, July 13, 1998; 86 FR 2241, Jan. 21, 2021; 86 FR 12836, Mar. (12,000 lbf-ft) of stored energy. For hydrotest the test factor = 1.5. what is it exactly ?? (689 kPa) gage. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. 35 FR 13257, Aug. 19, 1970, unless otherwise noted. arrow_forward. Notify me of follow-up comments by email. p = g h = (1000 kg/m 3) (9.81 m/s 2) (1 m) = 9810 Pa Example - Pressure acting in water at depth 3 ft . (69 kPa) gage and each main to be operated at or above 1 p.s.i. %PDF-1.6 % An interesting fact is that the value of hydrostatic pressure does not depend on the size and shape of the tank but only on the depth. y#TJ>lwV) b NH Hydrotest Allowance Calculator. Have you ever wondered what is the pressure level in water compared to the atmospheric pressure? hbbd``b`>$@AH0] @$R&AqX:Hs$x@bB@PHxy0012se`D"o` pr9 In addition. Test requirements for pipelines to operate at a hoop stress less than 30 percent of SMYS and at or above 100 p.s.i. Barricade the testing area to control unauthorized entry. For the Hydro test. The pressure in the system shall gradually be increased to not more than 1/2 of the test pressure, after which the pressure shall be . (a) Each segment of a plastic pipeline must be tested in accordance with this section. The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user. The eCFR is displayed with paragraphs split and indented to follow (689 kPa) gage. (c) Except as provided in paragraph (d) of this section, the strength test must be conducted by mai ntaining the pressure at or above the test pressure for at least 8 hours. If an inspection is required within the hold period, then pressure should be reduced to 80% of the test figure. For system pneumatic test, the test factor = 1.1.
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