This amendment modifies EN 777-3:1998. It has been prepared to incorporate requirements and test methods concerning NOx emissions of non-domestic gas-fired overhead radiant tube heaters.

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This amendment modifies EN 777-4:1998. It has been prepared to incorporate requirements and test methods concerning NOx emissions of non-domestic gas-fired overhead radiant tube heaters.

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This amendment modifies EN 777-1:1998. It has been prepared to incorporate requirements and test methods concerning NOx emissions of non-domestic gas-fired overhead radiant tube heaters.

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This amendment modifies EN 777-2:1998. It has been prepared to incorporate requirements and test methods concerning NOx emissions of non-domestic gas-fired overhead radiant tube heaters.

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This amendment modifies EN 416-1:1998. It has been prepared to incorporate requirements and test methods concerning NOx emissions of non-domestic gas-fired overhead radiant tube heaters.

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This amendment modifies EN 419-1:1998. It has been prepared to incorporate requirements and test methods concerning NOx emissions of non-domestic gas-fired overhead radiant tube heaters.

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