{"operation":"document","citation":"22-0111","title":"State Industrial Products — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2023-01-17","effective_on":null,"summary":"22-0111 response to State Industrial Products concerning 178.605.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-22-0111.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-22-0111.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-22-0111","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/77166/220111.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\nPipeline and Hazardous\nMaterials Safety\nAdministration\n1200 New Jersey Avenue, SE\nWashington, DC 20590\nJanuary 17, 2023\nTravis Arledge\nPackaging & Equipment Engineer\nState Industrial Products\n383 North High Street\nHebron, OH 43025\nReference No. 22-0111\nDear Mr. Arledge:\nThis letter is in response to your October 26, 2022, email requesting clarification of the\nHazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to hydrostatic\npressure testing of non-bulk packagings. Specifically, you indicate that you have plastic pails—\nused for shipments of “UN1824, Sodium hydroxide solution, 8, PG II”—rated to a test pressure\nof 20 kPa, which is more than the required hydraulic test pressure calculated for the specific\nhazardous material, as prescribed in § 178.605(d)(1). You believe this to be compliant with the\nHMR but inquire whether the packagings must instead be rated to a minimum test pressure of\n100kPa, as is prescribed in §§ 178.605(d)(2) or (3).\nThe answer is no. Section 178.605(d) provides three options for determining the test pressure to\nbe applied when performing hydrostatic pressure testing. When using the method specified in\n§ 178.605(d)(1), the test pressure must not be less than the total gauge pressure measured in the\npackaging (i.e., the vapor pressure of the filling material and the partial pressure of the air or\nother inert gas minus 100 kPa (15 psi)) at 55 °C (131 °F), multiplied by a safety factor of 1.5.\nThis total gauge pressure must be determined on the basis of a maximum degree of filling in\naccordance with § 173.24a(d) of the HMR and a filling temperature of 15 °C (59 °F). Section\n178.605(d)(1) does not specify a minimum test pressure of 100 kPa similar to paragraphs (d)(2)\nor (d)(3).\nI hope this information is helpful. Please contact us if we can be of further assistance.\nSincerely,\nDirk Der Kinderen\nChief, Standards Development Branch\nStandards and Rulemaking Division\n\n<<<PAGE 2>>>\n\nCardez\n22-0111\nFrom: INFOCNTR (PHMSA)\nTo: Subject: Date: Dodd, Alice (PHMSA); Hazmat Interps\nFW: Letter of Interpretation Request\nWednesday, October 26, 2022 11:09:04 AM\nHi Alice and team,\nPlease see the LOI request below. Thanks.\n-Rachel (HMIC)\nFrom: Arledge, Travis <tarledge@stateindustrial.com>\nSent: Wednesday, October 26, 2022 10:56 AM\nTo: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>\nSubject: Letter of Interpretation Request\nCAUTION: This email originated from outside of the Department of Transportation (DOT). Do\nnot click on links or open attachments unless you recognize the sender and know the content\nis safe.\nHello,\nWe are requesting interpretation into 49 CFR 178.605 for Hydrostatic Pressure Testing.\nWe have hazmat plastic pails containing Sodium Hydroxide being held up by UPS, they are quoting\n178.605 (d) (2) & (3) stating that our plastic pails have to be rated to 100kPa, even though our\nproduct is packing group II.\nWe believe that our pails which are rated for 20kPa falls under 178.605 (d) (1) and meets the\nregulations. Our supplier agrees and believes than no plastic pail could reach on 100 kPa rating.\nThe calculations that we have done for 178.605 (d) (1) equal around 5.82kPa, after the safety factor\nand fall well below our rating of 20, with our product being mostly water.\nMy name is Travis Dale Arledge, the address for our company is 383 North High Street Hebron Ohio,\n43025, and a valid phone number is 740-331-4023.\nRegards,\nTravis Arledge\nPackaging & Equipment Engineer\nState Industrial Products\nPhone- (740) 331-4023\n_________________________________\nNOTICE: This communication may contain information that is privileged, confidential, or exempt\nfrom disclosure. If you are not the intended recipient, please note that any dissemination,\ndistribution or copying of this communication is strictly prohibited. Anyone who receives this\n\n<<<PAGE 3>>>\n\ncommunication in error should notify the sender immediately by telephone or by return email and\ndelete it from his or her computer. [obn1]","truncated":false,"body_characters":4025}