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ALANGHSE SERVICES		 PERIODIC GAS LEVEL CHECK RECORD LFR-F-40F
REV. 01
Controlled Form
SECTION 1: REQUISITION
Date2026-08-10 Confined Space Permit No.[ PERMIT_ID ]
Shift A (Time)Start Time: _________ End Time: _________ AM / PM
Shift B (Time)Start Time: _________ End Time: _________ AM / PM
Acceptable Levels of Gas Concentrations as per Recycling of Ships Regulations, 2026
O2 (OXYGEN)CH4 (METHANE) in % H2S (HYDROGEN SULPHIDE) in PPMCO (CARBON MONOXIDE) in PPM
20.6 % to 22.0 % ≤1% of Lower Flammable Limit (LFL) = 0.05% V/V
Methane in Air=0.0005 by Fraction.		 ≤50% of Occupational Exposure Limit [OEL],
i.e., 50% of 10 PPM = 5.0 PPM		 ≤50% of Occupational Exposure Limit [OEL],
i.e., 50% of 50 PPM = 25 PPM
EQUIPMENT (MULTI-GAS DETECTOR USED TO MONITOR THE GAS READINGS)
Tick(✓/x)ManufacturerModel Serial NumberCalibrated onNext calibration due on
☑
MSAALTAIR-4X 600649416/02/202615/08/2026
☑
GMIPS241 34879318/03/202618/09/2026
Refer to the applicable Confined Space Entry Permit for the initial (1st) atmospheric readings.
2nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
3nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
4nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
5nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
6nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
7nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
8nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
9nd/th Reading
ParameterCSADJ-1 ADJ-2ADJ-3ADJ-4
SPACE/LOCATION
O2 [%]
HC* [% LEL]
CO [ppm]
H2S [ppm]
ILLUMINATION
TEMPERATURE
Time
Sign (Inspector)
Note: Verify atmosphere safe before re-entry. Check gas after each rest break (10.30 AM, 1.00 PM, 3.30 PM or at the prescribed rest breaks or at another formally approved schedule) or whenever the confined space has remained unattended for more than 30 mins. It is recommended that the interval between two consecutive atmospheric checks should not exceed 90 minutes. CS – Confined Space, ADJ – Adjacent Space, HC – Hydrocarbon.