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Male worker inspection visual record draft tank oil  bottom steel weld  with spot lighting internal confined specs
Manhole open lid steel tank chemical methanol testing at front manhole tank confined space.
a man or ship crew in the manhole or  cargo hold entrance. enclosed space. confined space.
Young woman studying from home during confinement period
Before entering the confined space, the amount of air in the tank must be measured and properly ventilated.

Free stock photosconfine (35470)

Red gift certificate template. Complex borderImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/red-gift-certificate-template-complex-border-270019553">Image used under license from Freestock.com</a>
Retro Gift Certificate template. Nice design. With background. Border, frame.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/retro-gift-certificate-template-nice-design-347429666">Image used under license from Freestock.com</a>
Formal Gift Certificate. Border, frame. Cordial design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/formal-gift-certificate-border-frame-cordial-345366611">Image used under license from Freestock.com</a>
Best Father Award Template. Border, frame.With guilloche pattern and background. Artistry design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/best-father-award-template-border-framewith-367885367">Image used under license from Freestock.com</a>
Diploma template or certificate template. Border, frame.Good design. Printer friendly. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/diploma-template-certificate-template-border-framegood-277977893">Image used under license from Freestock.com</a>
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Vector Gift Certificate. Cordial design. With complex background. Border, frame.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/vector-gift-certificate-cordial-design-complex-352732664">Image used under license from Freestock.com</a>
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Warranty Certificate. It includes background. Complex border. Very Customizable. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/warranty-certificate-includes-background-complex-border-290579825">Image used under license from Freestock.com</a>
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Certificate, Diploma of completion; design template with guilloche pattern, border, frame.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-design-template-guilloche-268528886">Image used under license from Freestock.com</a>
Diploma. Cordial design. Border, frame.With great quality guilloche pattern. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/diploma-cordial-design-border-framewith-great-297127574">Image used under license from Freestock.com</a>
Retro Gift Certificate. Border, frame.Good design. With great quality guilloche pattern. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/retro-gift-certificate-border-framegood-design-343050167">Image used under license from Freestock.com</a>
Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-guilloche-pattern-background-269013932">Image used under license from Freestock.com</a>
Green Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/green-certificate-diploma-completion-guilloche-pattern-265430360">Image used under license from Freestock.com</a>
Certificate, Diploma of completion; design template with guilloche pattern, border, frame.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-design-template-guilloche-269963477">Image used under license from Freestock.com</a>
Sample Warranty. Border, frame. With linear background. Beauty design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/sample-warranty-border-frame-linear-background-376223908">Image used under license from Freestock.com</a>
Warranty certificate template. Complex sky blue border designImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/warranty-certificate-template-complex-sky-blue-270022985">Image used under license from Freestock.com</a>
Certificate, Diploma of completion; design template with guilloche pattern, border, frame.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-design-template-guilloche-268772231">Image used under license from Freestock.com</a>
Sample Certificate. Border, frame.With complex background. Complex design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/sample-certificate-border-framewith-complex-background-346711298">Image used under license from Freestock.com</a>
The End chalkboard emblem on black boardImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/end-chalkboard-emblem-black-board-318147506">Image used under license from Freestock.com</a>
World's Best Dad Award Template. With guilloche pattern and background. Border, frame.Beauty design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/worlds-best-dad-award-template-guilloche-367889651">Image used under license from Freestock.com</a>
Certificate or diploma template. Border, frame.Retro design. With guilloche pattern and background. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-template-border-frameretro-design-352392110">Image used under license from Freestock.com</a>
Blue border certificate or diploma templateImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/blue-border-certificate-diploma-template-265428155">Image used under license from Freestock.com</a>
Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-guilloche-pattern-background-266201120">Image used under license from Freestock.com</a>
Blue Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/blue-certificate-diploma-completion-guilloche-pattern-265393808">Image used under license from Freestock.com</a>
Blue horizontal certificate template with complex border design.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/blue-horizontal-certificate-template-complex-border-265428029">Image used under license from Freestock.com</a>
Cute black and white border collie thinking about a bowl of food in a thought bubble above her headImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/cute-black-white-border-collie-thinking-347447294">Image used under license from Freestock.com</a>
Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-guilloche-pattern-background-266985179">Image used under license from Freestock.com</a>
Diploma template. Border, frame.With great quality guilloche pattern. Elegant design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/diploma-template-border-framewith-great-quality-332293055">Image used under license from Freestock.com</a>
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Voucher, Gift certificate, Coupon template with border, frame. Background design for invitation, banknote, money design, currency, check. 
Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/voucher-gift-certificate-coupon-template-border-266665064">Image used under license from Freestock.com</a>
Formal Gift Certificate. Border, frame.With complex background. Cordial design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/formal-gift-certificate-border-framewith-complex-293350940">Image used under license from Freestock.com</a>
World's Best Father Award Template. Excellent design. Border, frame.With linear background. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/worlds-best-father-award-template-excellent-347424035">Image used under license from Freestock.com</a>
Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner.
Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-guilloche-pattern-background-268241237">Image used under license from Freestock.com</a>
Sample Warranty template. Very Customizable. Complex border. With complex background. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/sample-warranty-template-very-customizable-complex-322311368">Image used under license from Freestock.com</a>
Best Mother Award. Border, frame. Beauty design. With linear background. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/best-mother-award-border-frame-beauty-374432287">Image used under license from Freestock.com</a>
Sky blue certificate template with complex border designImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/sky-blue-certificate-template-complex-border-262757030">Image used under license from Freestock.com</a>
Green Horizontal certificate or diploma template with complex border linear design and background. With sample text. Excellent design. Green color.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/green-horizontal-certificate-diploma-template-complex-266057570">Image used under license from Freestock.com</a>
Blue Certificate, Diploma of completion with guilloche pattern and background, border, frame. Certificate of Achievement, Certificate of education, awards, winner.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/blue-certificate-diploma-completion-guilloche-pattern-261387638">Image used under license from Freestock.com</a>
Retro Gift Certificate template. Sophisticated design. Border, frame.Complex background. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/retro-gift-certificate-template-sophisticated-design-323046773">Image used under license from Freestock.com</a>
Pink certificate or diploma template. Isolated certificate border.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/pink-certificate-diploma-template-isolated-certificate-271737260">Image used under license from Freestock.com</a>
World's Best Dad Award Template. Border, frame.Complex background. Excellent complex design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/worlds-best-dad-award-template-border-342090248">Image used under license from Freestock.com</a>
Red certificate or diploma template. Complex border design.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/red-certificate-diploma-template-complex-border-265479362">Image used under license from Freestock.com</a>
Certificate, Diploma of completion; design template with guilloche pattern, border, frame.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/certificate-diploma-completion-design-template-guilloche-267450206">Image used under license from Freestock.com</a>
Gift certificate template. Border, frame.Elegant design. Printer friendly. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/gift-certificate-template-border-frameelegant-design-316907630">Image used under license from Freestock.com</a>
Sample Warranty template. Easy to print. Complex border. Perfect style. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/sample-warranty-template-easy-print-complex-311068358">Image used under license from Freestock.com</a>
Vector Gift Certificate. Border, frame.With complex background. Excellent design. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/vector-gift-certificate-border-framewith-complex-351931226">Image used under license from Freestock.com</a>
Vector illustration or green horizontal certificate, diploma or coupon template. Very complex border design. With background and sample text.Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/vector-illustration-green-horizontal-certificate-diploma-141592069">Image used under license from Freestock.com</a>