# NTSB Safety Recommendation P-74-045

- **operation:** document
- **citation:** P-74-045
- **title:** NTSB Safety Recommendation P-74-045
- **source type:** guidance
- **agency:** National Transportation Safety Board
- **status:** guidance
- **official:** true
- **published on:** 1974-10-24
- **effective on:** 1974-10-24
- **summary:** THE NTSB RECOMMENDS THAT THE AMERICAN GAS ASSOCIATION: DEVELOP METHODS OF TESTING SOILS TO DETERMINE THE POTENTIAL EFFECT ON ODORANTS.
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- **app url:** https://regulus.evalyn.ai/document/ntsb-recommendation-p-74-045
- **source url:** https://data.ntsb.gov/carol-main-public/sr-details/P-74-045
**body:**

NTSB safety recommendation P-74-045.

THE NTSB RECOMMENDS THAT THE AMERICAN GAS ASSOCIATION: DEVELOP METHODS OF TESTING SOILS TO DETERMINE THE POTENTIAL EFFECT ON ODORANTS.

Priority: CLASS II

Overall Status: Closed - Acceptable Action

Issued Date: 1974-10-24

Adopted Date: 1974-10-24

Overall Date Closed: 1983-03-31

Synopsis: ON JUNE 23, 1973, A SERIES OF EXPLOSIONS, FOLLOWED BY FIRE, OCCURRED AT 12321 WELLING LANE IN BOWIE, MARYLAND. THREE OCCUPANTS OF THE HOUSE WERE KILLED, AND A FOURTH WAS INJURED; THE HOUSE WAS BADLY DAMAGED. HOUSES IN A FIVE-BLOCK AREA WERE EVACUATED.

Ntsbnumber: PLD73XR006

Report Number: PAR-74-05

Addressee Name: American Gas Association

Addressee Status: Closed--No Longer Applicable

Addressee Date Closed: 1983-03-31

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1975-03-31

Communication Type: Official Correspondence

Communication Contents: PHONE CONVERSATION WITH THE AMERICAN GAS ASSOCIATION ON YEAR STUDY OF THE PROBLEM OF GAS ODORIZATION. 3/31/75: ON MARCH 19, 1975, THE AMERICAN GAS ASSOCIATION (AGA) AUTHORIZED $170,000 FOR THE FIRST YEAR OF A THREE

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1979-11-16

Communication Type: Official Correspondence

Communication Contents: AGA LTR: SAFETY RECOMMENDATION BEING ADDRESSED IN GAS RESEARCH INSTITUTE RESEARCH PROGRAM.

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1983-01-26

Communication Type: Official Correspondence

Communication Contents: GAS RESEARCH INSTITUTE LETTER: THIS RECOMMENDATION CALLED FOR THE DEVELOPMENT OF IMPROVED ODORANTS AND ODORANT MEAS UREMENT TECHNIQUES AND A BETTER UNDERSTANDING OF ODORANT ADSORPTON BY SOILS. A.G.A. INITIATED SUCH A STUDY WITH ARTHUR D. LITTLE, INC. IN 1975. THIS STUDY WAS CONTINUED AND ITS SCOPE EXPANDED UNDER GRI SPONSORSHIP AFTER GRI BECAME THE OFFICIAL R&D ARM OF THE GAS INDUSTRY. THE FOLLOWING IS A SUMMARY OF OUR RESULTS AND CONCLUSIONS TO DATE: THE PROPENSITIES OF GAS ODORANTS TO BE ABSORBED BY VARIOUS CLAYS AND TO REACT WITH PIPE WALL MATERIALS WERE THOROUGHLY INVESTIGATED. DYNAMIC LABORATORY METHODS WERE DEVELOPED FOR TESTING BOTH SOIL/ODORANT AND PIPE/ODORANT INTERACTIONS. WE FEEL THAT WITH THESE STUDIES, A.G.A. AND GRI HAVE COMPLIED WITH NTSB RECOMMENDATIONS NO. P-74-43 AND P-74-45.

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1980-02-14

Communication Type: Official Correspondence

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1979-01-02

Communication Type: Official Correspondence

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1979-10-31

Communication Type: Official Correspondence

Addressee Acronym: AGA

Addressee Organization Type: A-Associations

Communication Date: 1983-03-31

Communication Type: Official Correspondence
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