Do not know these, what formaldehyde harms is you!
Wangtong learns firm university to graduate one year, go to work around Chengdu finance city, look at more and more expensive now room valence and more and more the purse of shrivelled, it is to hope the room is promoted really sigh! He sees freely net has rental cell, close from the company and the house in the photograph is clean, a when decided 3 be placed in the middle, close hire! Everybody is the house that the youth has each each won't be disturbed each other, have oneself private space again, zhou Yi goes to work to Zhou Wu, day rests Saturday radical in step, after seeing a room, came down surely immediately.
But lived after 3 two months, always cough, snorty, the bosom ate patulin to also be used without giving thought to frowzily, went to a hospital making an inspection, one examination gave big question: Leucocyte amount on the low side, "Be equivalent to normal person only 60% " . The check-up that duty just did is entered before 45 months, everything is normal!
Follow what he closes additionally two buildings that lease to hired a guest to also appear at the same time hereat same question, cough, pharynx is painful, have a headache, the bosom is frowsty, they realize the likelihood is this house appeared this problem. Look for professional air to detect then personnel. Detect as expected the result shows: 5 rooms (king classmate room) , the formaldehyde content of a 2 rooms, room (Mg/m3) it is respectively 0.299, 0.325, 0.245, and standard of set limit to is GB not to exceed 0.1, the 3-4 that fastens national level times!
Wang Tongxue and other add up to the haste that hire a person to return the house, too serious, a few short lunar holder appeared same symptom, before associating again a few days of press " employee of the P7 in A gets leukaemia die, rent freely formaldehyde house before one's death " what king classmate Xing Qingfa shows is early, move in time left contaminative source, otherwise unimaginable!
Of increasing now formaldehyde exceed bid, leukaemia! People talks really " color talking about aldehyde changes " , how to reduce the formaldehyde harm to the person truly! Want to say honest word to you except environmental protection of wolf of formaldehyde company battle as Chongqing. In decorating advocate material, furniture is easy formaldehyde exceeds bid, want to be discriminated attentively so, small after making up will from: Plank, be bored with child, emulsioni paint, wooden floor, wooden door, ambry, wall paper, wall cloth, furniture is ordinal the composition construction that says it and formaldehyde content, hope knowledge of much to the people that will decorate dot is laid in, be duped less in decorating a process, can put on the home of environmental protection warmth. Below first for say plank:
Plank: E class attestation is a standard
Safe hidden trouble: The main and healthy problem that plank may exist also is formaldehyde release a quantity to exceed mark issue.
See attestation: Formaldehyde releases form of quantity E1, E2 is to point to the formaldehyde that the country sets to release a level, e1 form product can be used at directly indoor, e2 form product must undertake facing handles ability to be able to be used at indoor. Did not indicate the plank of class of E1, E2 is absolutely cannot use at indoor. Stick face plate and big core board by its the exterior and quality can be divided for classy article, one article, qualification tastes 3 grade.
The main problem of plank is formaldehyde, the formaldehyde problem of plank basically is the issue that glue uses glue quantity and sizy itself character. We do an analysis first to the quantity using gum of all sorts of plank.
1) straight makeup
Straight makeup does a horizontal stroke only to the joining together that go up, even if be a whole wood up
Show by plan institute, pink part needs to use the face of glue namely
2) point to receive board (compositive material)
Compare at straight makeup for, point to receive board increased to point to those who receive a share to use gum on the foundation of straight makeup.
3) big core board (joinery board)
Greatly the circumstance using gum of core board makes a range for 2 or two full ranges are added inside between core layer the felt of wood, major plant internally core layer does not use gum, by fluctuation board apply glue to secure, use gum so fewer, have 2 glue only.
4) multilayer solid board
Multilayer solid board needs to apply glue face to be (number of plies - 1) face glue, 9 layer board need 8 glue.
5) particieboard (real wood grain board, Ou Song board)
Particieboard is the fragment that becomes certain standards by lumber cut, add agent sticking gum is become with hot pressing of a few other additive, grain board also is a kind when belong to particieboard, ou Song board (OSB) also be to belong to particieboard, it is Ou Song board only fragment of meeting general interior is directional the performance with arrange freely crisscross better with achieving. From the structure we know, the quantity using gum of particieboard wants prep above multilayer real wood.
6) density board (in fine board, beaverboard, real wood is atomic board, bay pine board)
Density board is smash material very fine, similar sawdust is grey, add glue to add suppress of additive high temperature next, density board basically can think nowhere is not glue.
Bay pine board also be a kind of density board, just this board it is entrance plank, what do with material and environmental protection grade is tall.
7) standing grain is sweet board
Standing grain is sweet board be 10 thousand China of production, raw material is straw, namely the cauline leaf of crop, for instance the straw of paddy. Standing grain is sweet board with glue likewise special much, but standing grain is sweet board be give priority to with environmental protection dozen, basically used those who say to be the MDI glue that does not have aldehyde namely. Do not cross the is raw material generally to make board with straw to its physics property inside course of study, and the noxiousness in producing a course, whether to put in existence of other and poisonous component to oppugn.
8) pair facing board, avoid Qi Ban, zoology board, 3 get together cyanogen amine board
These are the appellation of the plank of the processing that acts the role of facing to the course commonly, put facing paper 3 get together immerse in cyanogen amine solution, next hot pressing sticks plank to go up. Cry previously 3 get together cyanogen amine board, the everybody after incident of 3 deer milk powder does not cry 3 get together cyanogen amine board.
Double the quantity using gum that acts the role of face plate and base material are concerned, can be big core board, can be multilayer real wood, also can be particieboard, density board, what is the base material essence that we must see it.
The plank on the market roughly with respect to these, from this, we can see arrange from the quantity that use gum: Density board " particieboard " multilayer solid board " big core board " point to receive board, straight makeup.
Is then formaldehyde problem also such sort? It is not certain that this falls, because of formaldehyde problem not only related to the quantity that use gum, also concern with sizy sort and sizy character. Standing grain is for instance sweet board, although use gum the amount is large, but use MDI glue, in formaldehyde this one is released very low, love case board for instance, the loves case board to also have particieboard structure love case that has density board structure board, can achieve the order and degree of F4 star.
What do not cross clearly is, the quantity that use gum jumps over little plank, better control formaldehyde pollutes a problem. The quantity that use gum jumps over difficult control greatly more. The word of coequal and sizy sort and character, point to receive board, straight makeup excel is big core board excel is multilayer density of excel of particieboard of real wood excel board. Same in all sorts of plank of a brand, also be to point to commonly receive board base material comparing is big core board base material is expensive, greatly core board base material is compared multilayer solid Mu Gui, multilayer real wood is more expensive than particieboard.
