---
kind: "section"
citation: "43 C.F.R. § 3175.120"
title: "43"
number: "3175.120"
heading: "Gas analysis report requirements."
url: "https://uscodex.org/cfr/43/3175.120"
---

# §3175.120. Gas analysis report requirements.

- (a) The gas analysis report must contain the following information:
  - (1) The information required in [§ 3170.7(g)](/cfr/43/3170.7.md?p=g) of this part;
  - (2) The date and time that the sample for spot samples was taken or, for composite samples, the date the cylinder was installed and the date the cylinder was removed;
  - (3) The date and time of the analysis;
  - (4) For spot samples, the effective date, if other than the date of sampling;
  - (5) For composite samples, the effective start and end date;
  - (6) The name of the laboratory where the analysis was performed;
  - (7) The device used for analysis (i.e., GC, calorimeter, or mass spectrometer);
  - (8) The make and model of analyzer;
  - (9) The date of last calibration or verification of the analyzer;
  - (10) The flowing temperature at the time of sampling;
  - (11) The flowing pressure at the time of sampling, including units of measure (psia or psig);
  - (12) The flow rate at the time of sampling;
  - (13) The ambient air temperature at the time of sampling;
  - (14) Whether or not heat trace or any other method of heating was used;
  - (15) The type of sample (i.e., spot-cylinder, spot-portable GC, composite);
  - (16) The sampling method if spot-cylinder (e.g., fill and empty, helium pop);
  - (17) A list of the components of the gas tested;
  - (18) The un-normalized mole percents of the components tested, including a summation of those mole percents;
  - (19) The normalized mole percent of each component tested, including a summation of those mole percents;
  - (20) The ideal heating value (Btu/scf);
  - (21) The real heating value (Btu/scf), dry basis;
  - (22) The hexane+ split, if applicable;
  - (23) The pressure base and temperature base;
  - (24) The relative density; and
  - (25) **The name of the company obtaining the gas sample.**
- (b) Components that are listed on the analysis report, but not tested, must be annotated as such.
- (c) The heating value and relative density must be calculated under API 14.5 (incorporated by reference, see [§ 3175.30](/cfr/43/3175.30.md)).
- (d) The base supercompressibility must be calculated under AGA Report No. 8 (incorporated by reference, see [§ 3175.30](/cfr/43/3175.30.md)).
- (e) The operator must submit all gas analysis reports to the BLM within 15 days of the due date for the sample as specified in [§ 3175.115](/cfr/43/3175.115.md).
- (f) Unless a variance is granted, the operator must submit all gas analysis reports and other required related information electronically through the GARVS. The BLM will grant a variance to the electronic-submission requirement only in cases where the operator demonstrates that it is a small business, as defined by the U.S. Small Business Administration, and does not have access to the Internet.

## Notes

### Source

Source: 81 FR 81609, Nov. 17, 2016, unless otherwise noted.

### Authority

Authority: 25 U.S.C. 396d and 2107; 30 U.S.C. 189, 306, 359, and 1751; and 43 U.S.C. 1732(b), 1733, and 1740.

### Source

Source: 81 FR 81421, Nov. 17, 2016, unless otherwise noted.