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Syntax error in template "34352066712900#33336#65816767" in line 31, column 54:
Unknown built-in: "json". Help (latest version): https://freemarker.apache.org/docs/ref_builtins.html; you're using FreeMarker 2.3.33.
The alphabetical list of built-ins:
abs, absolute_template_name, ancestors, api, 
boolean, byte, 
c, c_lower_case, c_upper_case, cap_first, capitalize, ceiling, children, chop_linebreak, chunk, cn, contains, counter, 
date, date_if_unknown, datetime, datetime_if_unknown, default, double, drop_while, 
ends_with, ensure_ends_with, ensure_starts_with, esc, eval, eval_json, exists, 
filter, first, float, floor, 
groups, 
has_api, has_content, has_next, html, 
if_exists, index, index_of, int, interpret, is_boolean, is_collection, is_collection_ex, is_date, is_date_like, is_date_only, is_datetime, is_directive, is_enumerable, is_even_item, is_first, is_hash, is_hash_ex, is_indexable, is_infinite, is_last, is_macro, is_markup_output, is_method, is_nan, is_node, is_number, is_odd_item, is_sequence, is_string, is_time, is_transform, is_unknown_date_like, iso, iso_h, iso_h_nz, iso_local, iso_local_h, iso_local_h_nz, iso_local_m, iso_local_m_nz, iso_local_ms, iso_local_ms_nz, iso_local_nz, iso_m, iso_m_nz, iso_ms, iso_ms_nz, iso_nz, iso_utc, iso_utc_fz, iso_utc_h, iso_utc_h_nz, iso_utc_m, iso_utc_m_nz, iso_utc_ms, iso_utc_ms_nz, iso_utc_nz, item_cycle, item_parity, item_parity_cap, 
j_string, join, js_string, json_string, 
keep_after, keep_after_last, keep_before, keep_before_last, keys, 
last, last_index_of, left_pad, length, long, lower_abc, lower_case, 
map, markup_string, matches, max, min, 
namespace, new, next_sibling, no_esc, node_name, node_namespace, node_type, number, number_to_date, number_to_datetime, number_to_time, 
parent, previous_sibling, 
remove_beginning, remove_ending, replace, reverse, right_pad, root, round, rtf, 
seq_contains, seq_index_of, seq_last_index_of, sequence, short, size, sort, sort_by, split, starts_with, string, substring, switch, 
take_while, then, time, time_if_unknown, trim, truncate, truncate_c, truncate_c_m, truncate_m, truncate_w, truncate_w_m, 
uncap_first, upper_abc, upper_case, url, url_path, 
values, 
web_safe, with_args, with_args_last, word_list, 
xhtml, xml

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46</ul>

49<#-- ============================================================

50     Traduccion de parametros de la URL al cambiar de idioma

51     ============================================================ -->

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184</script>

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DIN 3546:2025-11

Shut-off valves for drinking water installations in properties and buildings - General requirements and tests for manually operated shut-off valves / Note: Date of issue 2025-10-10*Intended as replacement for DIN 3546-1 (2011-01).

Fecha edición:	2025-11-01 En Vigor
Idiomas disponibles:	Alemán
Resumen:	This document is applicable for manually operated shut-off valves up to nominal size DN 100, PN 10. The valves can also be in combination with a backflow preventer. Piston gate valves; Diaphragm valves; Gate valves; Ceramic disk valve; Installation manifold with integrated shut-off valve; which are installed in drinking water installations in buildings in accordance with DIN 1988 and DIN EN 806. The standard is not applicable to fittings according to DIN EN 1213 and DIN EN 13828. This document specifies general requirements, such as those for tightness, resistance to internal pressure, hydraulic behavior, temperature resistance and mechanical behavior, which valves with pressure-bearing housing parts made of metallic materials for drinking water installations in buildings must meet, as well as for the test methods that make it possible to verify the requirements. This document applies to the above-mentioned fittings at a service temperature of 65 °C. Occasional temperature rises of the system up to 95 °C are permitted, provided that they do not last longer than 1 h.
Keywords:	Approval marks\|Definitions\|Diaphragm valves\|Draw-off taps\|Drinking water installations\|Hand operated\|Inspection\|Inspection by attributes\|Leak tests\|Marking\|Materials\|Noise emission\|Piston valves\|Service installations in buildings\|Shut-off valves\|Slide valves\|Special design\|Specification (approval)\|Stop valves\|Strength of materials\|Tapping tees\|Testing\|Tightness\|Valves\|Water practice\|Water supply\|Water supply (buildings)\|Water valves
ICS:	91.140.60 - Sistemas de abastecimiento de agua, 23.060.30 - Válvulas de compuerta
CTN:
Reemplazo Normas	Reemplaza a DIN 3546:2024-09

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