1.1 <\/b>This part of ISO 1622 establishes a system of designation for polystyrene thermoplastic material, which<\/p>\n
may be used as the basis for specifications.<\/p>\n
1.2 <\/b>The types of polystyrene plastics are differentiated from each other by a classification system based on<\/p>\n
appropriate levels of the designatory properties<\/p>\n
a) Vicat softening temperature and<\/p>\n
b) melt volume-flow rate<\/p>\n
and on information about the intended application and\/or method of processing, important properties, additives<\/p>\n
and colorants.<\/p>\n
1.3 <\/b>This part of ISO 1622 is applicable to all amorphous polystyrene homopolymers.<\/p>\n
It applies to materials ready for normal use, unmodified or modified by colorants, additives, fillers, etc.<\/p>\n
This part of ISO 1622 does not apply to expanded polystyrene, styrene copolymers, homopolymers of<\/p>\n
substituted styrene or those modified with other polymers such as elastomers.<\/p>\n
1.4 <\/b>It is not intended to imply that materials having the same designation give necessarily the same<\/p>\n
performance. This part of ISO 1622 does not provide engineering data, performance data or data on processing<\/p>\n
conditions which might be required to specify a material for a particular application and\/or method of processing.<\/p>\n
If such additional properties are required, they shall be determined in accordance with the test methods<\/p>\n
specified in Part 2 of this International Standard, if suitable.<\/p>\n
1.5 <\/b>In order to specify a thermoplastic material for a particular application or to ensure reproducible processing,<\/p>\n
additional requirements may be given in data block 5 (see 3.1).<\/p>\n","protected":false},"excerpt":{"rendered":"
Plastics \u2014 Polystyrene (PS) moulding and extrusion materials \u2014 Part 1: Designation system and basis for specifications<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ISO<\/b><\/a><\/td>\n 2012-02<\/td>\n 10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":596888,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1179,2634],"product_tag":[],"class_list":{"0":"post-596877","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-20","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/596877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/596888"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=596877"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=596877"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=596877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}