About: PH helmet

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The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals. It had flannel layers of cloth-dipped in sodium phenolate and glycerin and protected against chlorine and phosgene, but not against tear gas. Around 9 million were made.

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rdf:type	mean of transportation yago:Artifact100021939 yago:Attire102756098 yago:Clothing103051540 yago:Commodity103076708 yago:ConsumerGoods103093574 yago:Covering103122748 yago:Disguise103206718 yago:Mask103724870 yago:Object100002684 yago:PhysicalEntity100001930 yago:WikicatGasMasks yago:Whole100003553
rdfs:label	Casco PH (es) PH helmet (en)
rdfs:comment	Los cascos P, PH y PHG eran primigenios modelos de máscaras antigás suministrados por el Ejército británico en la Primera Guerra Mundial, para proteger a sus tropas del cloro, fosgeno y gases lacrimógenos. (es) The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals. It had flannel layers of cloth-dipped in sodium phenolate and glycerin and protected against chlorine and phosgene, but not against tear gas. Around 9 million were made. (en)
foaf:depiction
dcterms:subject	World War I military equipment of the United Kingdom Gas masks of the United Kingdom
Wikipage page ID	2491779 (xsd:integer)
Wikipage revision ID	1084203703 (xsd:integer)
Link from a Wikipage to another Wikipage	Mica Hydrogen cyanide Gas mask World War I military equipment of the United Kingdom Gas masks of the United Kingdom Tear gas British Army First World War Chlorine Phosgene Glycerin Hypo Helmet Small box respirator Hexamethylene tetramine Sodium phenolate
Link from a Wikipage to an external page	https://web.archive.org/web/20070928043214/http:/www.gasmasks.net/database/uk/uk.htm
sameAs	PH helmet PH helmet PH helmet PH helmet PH helmet PH helmet
dbp:wikiPageUsesTemplate	dbt:Commons_category dbt:UK-mil-stub dbt:Use_dmy_dates
thumbnail	wiki-commons:Special:FilePath/Vickers_machine_gun_crew_with_gas_masks.jpg?width=300
has abstract	Los cascos P, PH y PHG eran primigenios modelos de máscaras antigás suministrados por el Ejército británico en la Primera Guerra Mundial, para proteger a sus tropas del cloro, fosgeno y gases lacrimógenos. (es) The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with chemicals. The P (or Phenate) Helmet, officially called the Tube Helmet, appeared in July 1915, replacing the simpler Hypo Helmet. It featured two mica eyepieces instead of the single visor of its predecessor, and added an exhale valve fed from a metal tube which the wearer held in his mouth. The exhale valve was needed because a double layer of flannel – one treated and one not – was needed because the solution attacked the fabric. It had flannel layers of cloth-dipped in sodium phenolate and glycerin and protected against chlorine and phosgene, but not against tear gas. Around 9 million were made. The PH Helmet (Phenate Hexamine) replaced it in October 1915, and added hexamethylene tetramine, which greatly improved protection against phosgene and added protection against hydrocyanic acid. Around 14 million were made and it remained in service until the end of the war by which time it was relegated to second line use. The PHG Helmet appeared in January 1916 and was similar to the PH Helmet but had a facepiece made of rubber sponge to add protection against tear gas. Around one and a half million were produced in 1916–1917. It was finally superseded by the Small box respirator in 1916, which was much more satisfactory against high concentrationsof phosgene or lachrymators. (en)
gold:hypernym	Types
prov:wasDerivedFrom	wikipedia-en:PH_helmet?oldid=1084203703&ns=0
page length (characters) of wiki page	3926 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:PH_helmet
is Link from a Wikipage to another Wikipage of	129th (Bristol) Heavy Battery, Royal Garrison Artillery Chemical weapons in World War I Gas mask Cluny Macpherson (physician) Gas attacks at Hulluch Gas attacks at Wulverghem German phosgene attack (19 December 1915) PHG helmet First day on the Somme Hypo helmet Surrey Yeomanry Ph helmet Second Battle of Ypres Small box respirator Tube helmet PH gas helmet P Helmet
is Wikipage redirect of	PHG helmet Ph helmet Tube helmet PH gas helmet P Helmet
is foaf:primaryTopic of	wikipedia-en:PH_helmet

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